|
Name |
Accession |
Description |
Interval |
E-value |
| COX1 |
MTH00153 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
1.24e-143 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177210 Cd Length: 511 Bit Score: 410.41 E-value: 1.24e-143
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00153 12 DIGTLYFIFGAWSGMVGTSLSLLIRAELGQPGSLIGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMLGAPDMA 91
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00153 92 FPRMNNMSFWLLPPSLTLLLSSSMVESGAGTGWTVYPPLSSNIAHSGASVDLAIFSLHLAGISSILGAINFITTIINMRS 171
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00153 172 KGMTLDRMPLFVWSVLITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 234
|
|
| Cyt_c_Oxidase_I |
cd01663 |
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the ... |
1-223 |
3.77e-133 |
|
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the respiratory chains of eukaryotes and most bacteria, is a multi-chain transmembrane protein located in the inner membrane of mitochondria and the cell membrane of prokaryotes. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. Only subunits I and II are essential for function, but subunit III, which is also conserved, may play a role in assembly or oxygen delivery to the active site. Subunits I, II, and III of mammalian CcO are encoded within the mitochondrial genome and the remaining 10 subunits are encoded within the nuclear genome. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme (heme a3) and a copper ion (CuB). It also contains a low-spin heme (heme a), believed to participate in the transfer of electrons to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from cytochrome c on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are transferred from cytochrome c (the electron donor) to heme a via the CuA binuclear site in subunit II, and directly from heme a to the binuclear center.
Pssm-ID: 238833 Cd Length: 488 Bit Score: 382.99 E-value: 3.77e-133
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:cd01663 5 DIGTLYLIFGLWSGLVGTSLSLLIRLELSQPGSQLGNDQLYNVIVTAHALIMIFFMVMPALIGGFGNWLVPLMIGAPDMA 84
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:cd01663 85 FPRLNNLSFWLLPPSLLLLLLSALVEGGAGTGWTVYPPLSSILAHSGPSVDLAIFSLHLAGISSILGAINFITTIFNMRA 164
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:cd01663 165 PGMTLEKMPLFVWSVLITAFLLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLFW 227
|
|
| CyoB |
COG0843 |
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion]; |
1-223 |
2.23e-74 |
|
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];
Pssm-ID: 440605 Cd Length: 535 Bit Score: 233.87 E-value: 2.23e-74
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPiMIGGFGNWLVPLMIGAPDMA 80
Cdd:COG0843 17 RIGIMYLVTAFVFLLIGGLLALLMRLQLAGPGLGLLSPETYNQLFTMHGTIMIFFFATP-FLAGFGNYLVPLQIGARDMA 95
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:COG0843 96 FPRLNALSFWLYLFGGLLLLISLFVGGAADVGWTFYPPLSGLEASPGVGVDLWLLGLALFGVGSILGGVNFIVTILKMRA 175
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:COG0843 176 PGMTLMRMPLFTWAALVTSILILLAFPVLAAALLLLLLDRSLGTHFFDPAGGGDPLLWQHLFW 238
|
|
| COX1 |
pfam00115 |
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key ... |
1-223 |
4.64e-46 |
|
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key enzyme in aerobic metabolism. Proton pumping haem-copper oxidases represent the terminal, energy-transfer enzymes of respiratory chains in prokaryotes and eukaryotes. The CuB-haem a3 (or haem o) binuclear centre, associated with the largest subunit I of cytochrome c and ubiquinol oxidases (E.C:1.10.3.11), is directly involved in the coupling between dioxygen reduction and proton pumping. Some terminal oxidases generate a transmembrane proton gradient across the plasma membrane (prokaryotes) or the mitochondrial inner membrane (eukaryotes). The enzyme complex consists of 3-4 subunits (prokaryotes) up to 13 polypeptides (mammals) of which only the catalytic subunit (equivalent to mammalian subunit I (COXI) is found in all haem-copper respiratory oxidases. The presence of a bimetallic centre (formed by a high-spin haem and copper B) as well as a low-spin haem, both ligated to six conserved histidine residues near the outer side of four transmembrane spans within CO I is common to all family members.
Pssm-ID: 459678 Cd Length: 432 Bit Score: 157.73 E-value: 4.64e-46
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPiMIGGFGNWLVPLMIGAPDMA 80
Cdd:pfam00115 1 RIGLLYLVTALVWFLVGGLLGLLIRLQLAFPGLNFLSPLTYNQLRTLHGNLMIFWFATP-FLFGFGNYLVPLMIGARDMA 79
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWllpPSLSLLLSSSIIDMGAGTGWTVYPPLAGplahsgpaVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:pfam00115 80 FPRLNALSFW---LVVLGAVLLLASFGGATTGWTEYPPLVG--------VDLWYIGLLLAGVSSLLGAINFIVTILKRRA 148
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLdQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNtsffdpAGGGDPILYQHLFW 223
Cdd:pfam00115 149 PGMTL-RMPLFVWAILATAILILLAFPVLAAALLLLLLDRSLG------AGGGDPLLDQHLFW 204
|
|
| QoxB |
TIGR02882 |
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type ... |
2-223 |
1.88e-40 |
|
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type quinone oxidase, one of several bacterial terminal oxidases. This complex couples oxidation of reduced quinones with the reduction of molecular oxygen to water and the pumping of protons to form a proton gradient utilized for ATP production. aa3-type oxidases contain two heme a cofactors as well as copper atoms in the active site. [Energy metabolism, Electron transport]
Pssm-ID: 131928 Cd Length: 643 Bit Score: 146.15 E-value: 1.88e-40
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 2 IGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGgFGNWLVPLMIGAPDMAF 81
Cdd:TIGR02882 53 IGVMYIICAVLMLFRGGIDALLMRAQLTVPDNKFLDAQHYNEIFTTHGVIMIIFMAMPFIIG-LMNIVVPLQIGARDVAF 131
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 82 PRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKSQ 161
Cdd:TIGR02882 132 PVLNALSFWLFFAGAMLFNISFVIGGSPDAGWTNYAPLAGPEFSPGVGVNYYLIALQISGIGTLMTGINFFVTILKMRAP 211
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1846443272 162 EMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:TIGR02882 212 GMKLMQMPMFTWTTLITTLIIIFAFPVLTVALALMTTDRIFDTAFFTVAHGGMPMLWANLFW 273
|
|
|
|
Name |
Accession |
Description |
Interval |
E-value |
| COX1 |
MTH00153 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
1.24e-143 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177210 Cd Length: 511 Bit Score: 410.41 E-value: 1.24e-143
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00153 12 DIGTLYFIFGAWSGMVGTSLSLLIRAELGQPGSLIGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMLGAPDMA 91
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00153 92 FPRMNNMSFWLLPPSLTLLLSSSMVESGAGTGWTVYPPLSSNIAHSGASVDLAIFSLHLAGISSILGAINFITTIINMRS 171
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00153 172 KGMTLDRMPLFVWSVLITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 234
|
|
| Cyt_c_Oxidase_I |
cd01663 |
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the ... |
1-223 |
3.77e-133 |
|
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the respiratory chains of eukaryotes and most bacteria, is a multi-chain transmembrane protein located in the inner membrane of mitochondria and the cell membrane of prokaryotes. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. Only subunits I and II are essential for function, but subunit III, which is also conserved, may play a role in assembly or oxygen delivery to the active site. Subunits I, II, and III of mammalian CcO are encoded within the mitochondrial genome and the remaining 10 subunits are encoded within the nuclear genome. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme (heme a3) and a copper ion (CuB). It also contains a low-spin heme (heme a), believed to participate in the transfer of electrons to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from cytochrome c on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are transferred from cytochrome c (the electron donor) to heme a via the CuA binuclear site in subunit II, and directly from heme a to the binuclear center.
Pssm-ID: 238833 Cd Length: 488 Bit Score: 382.99 E-value: 3.77e-133
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:cd01663 5 DIGTLYLIFGLWSGLVGTSLSLLIRLELSQPGSQLGNDQLYNVIVTAHALIMIFFMVMPALIGGFGNWLVPLMIGAPDMA 84
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:cd01663 85 FPRLNNLSFWLLPPSLLLLLLSALVEGGAGTGWTVYPPLSSILAHSGPSVDLAIFSLHLAGISSILGAINFITTIFNMRA 164
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:cd01663 165 PGMTLEKMPLFVWSVLITAFLLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLFW 227
|
|
| COX1 |
MTH00167 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
1.30e-129 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177222 Cd Length: 512 Bit Score: 374.78 E-value: 1.30e-129
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00167 14 DIGTLYFIFGAWAGMVGTALSLLIRAELSQPGSLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 93
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00167 94 FPRMNNMSFWLLPPSLLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLAIFSLHLAGVSSILGSINFITTIINMKP 173
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00167 174 PGITQYQTPLFVWSILVTTILLLLSLPVLAAAITMLLTDRNLNTTFFDPAGGGDPILYQHLFW 236
|
|
| COX1 |
MTH00116 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
1.27e-127 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177177 Cd Length: 515 Bit Score: 370.19 E-value: 1.27e-127
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00116 14 DIGTLYLIFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 93
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00116 94 FPRMNNMSFWLLPPSFLLLLASSTVEAGAGTGWTVYPPLAGNLAHAGASVDLAIFSLHLAGVSSILGAINFITTCINMKP 173
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00116 174 PAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFW 236
|
|
| COX1 |
MTH00142 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
3.43e-122 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 214431 Cd Length: 511 Bit Score: 355.96 E-value: 3.43e-122
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00142 12 DIGTLYFLFGAWAGMVGTGLSLLIRAELGQPGSLLGDDQLYNVIVTAHAFVMIFFMVMPVMIGGFGNWLVPLMLGAPDMA 91
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00142 92 FPRMNNMSFWLLPPALLLLLSSAAVESGAGTGWTVYPPLSSNLAHSGGSVDLAIFSLHLAGVSSILGAINFITTVINMRA 171
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00142 172 GGMKFERVPLFVWSVKITAILLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLFW 234
|
|
| COX1 |
MTH00223 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
2.11e-121 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177260 Cd Length: 512 Bit Score: 353.90 E-value: 2.11e-121
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00223 11 DIGTLYLIFGMWSGLVGTSLSLLIRAELGQPGALLGDDQLYNVIVTAHAFVMIFFLVMPMMIGGFGNWLVPLMLGAPDMA 90
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00223 91 FPRLNNMSFWLLPPSLYLLLSSSAVESGVGTGWTVYPPLSSNLAHAGPSVDLAIFSLHLAGVSSILGAINFITTIINMRS 170
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00223 171 PGMQLERLPLFVWSVKVTAFLLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLFW 233
|
|
| COX1 |
MTH00077 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
1.56e-113 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 214419 Cd Length: 514 Bit Score: 334.22 E-value: 1.56e-113
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00077 14 DIGTLYLVFGAWAGMVGTALSLLIRAELSQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 93
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00077 94 FPRMNNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTSINMKP 173
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00077 174 PSMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPVLYQHLFW 236
|
|
| COX1 |
MTH00183 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
7.65e-112 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177234 Cd Length: 516 Bit Score: 329.96 E-value: 7.65e-112
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00183 14 DIGTLYLVFGAWAGMVGTALSLLIRAELSQPGALLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLIPLMIGAPDMA 93
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00183 94 FPRMNNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKP 173
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00183 174 PAISQYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFW 236
|
|
| COX1 |
MTH00103 |
cytochrome c oxidase subunit I; Validated |
1-223 |
3.92e-111 |
|
cytochrome c oxidase subunit I; Validated
Pssm-ID: 177165 Cd Length: 513 Bit Score: 327.99 E-value: 3.92e-111
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00103 14 DIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 93
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00103 94 FPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKP 173
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00103 174 PAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFW 236
|
|
| COX1 |
MTH00037 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
1.09e-109 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177112 Cd Length: 517 Bit Score: 324.48 E-value: 1.09e-109
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00037 14 DIGTLYLIFGAWAGMVGTAMSVIIRTELAQPGSLLQDDQIYNVIVTAHALVMIFFMVMPIMIGGFGNWLIPLMIGAPDMA 93
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00037 94 FPRMNNMSFWLIPPSFLLLLASAGVESGAGTGWTIYPPLSSNIAHAGGSVDLAIFSLHLAGASSILASINFITTIINMRT 173
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00037 174 PGMTFDRLPLFVWSVFITAFLLLLSLPVLAGAITMLLTDRNINTTFFDPAGGGDPILFQHLFW 236
|
|
| COX1 |
MTH00007 |
cytochrome c oxidase subunit I; Validated |
1-223 |
3.95e-108 |
|
cytochrome c oxidase subunit I; Validated
Pssm-ID: 133649 Cd Length: 511 Bit Score: 320.31 E-value: 3.95e-108
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00007 11 DIGTLYFILGVWGGLLGTSMSLLIRIELGQPGAFLGSDQLYNTIVTAHAFLMIFFLVMPVFIGGFGNWLVPLMLGAPDMA 90
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00007 91 FPRLNNMSFWLLPPALILLVSSAAVEKGVGTGWTVYPPLASNLAHAGPSVDLAIFSLHLAGVSSILGAINFITTVINMRW 170
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00007 171 KGLRLERIPLFVWAVVITVVLLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 233
|
|
| COX1 |
MTH00182 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
2.75e-106 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 214451 Cd Length: 525 Bit Score: 315.99 E-value: 2.75e-106
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00182 16 DIGTLYLVFGAGAGMIGTAFSMLIRLELSAPGAMLGDDHLYNVIVTAHAFIMIFFLVMPVMIGGFGNWLVPLYIGAPDMA 95
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00182 96 FPRLNNISFWLLPPALILLLGSAFVEQGAGTGWTVYPPLSSIQAHSGGAVDMAIFSLHLAGVSSILGAINFITTIFNMRA 175
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00182 176 PGVTFNRLPLFVWSILITAFLLLLSLPVLAGAITMLLTDRNFNTTFFDPAGGGDPILFQHLFW 238
|
|
| COX1 |
MTH00184 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
4.67e-104 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177235 Cd Length: 519 Bit Score: 310.22 E-value: 4.67e-104
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00184 16 DIGTLYLLFGAFAGMIGTAFSMLIRLELSAPGSMLGDDHLYNVIVTAHAFVMIFFLVMPVMIGGFGNWFVPLYIGAPDMA 95
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00184 96 FPRLNNISFWLLPPALTLLLGSAFVEQGAGTGWTVYPPLSSIQAHSGGSVDMAIFSLHLAGISSILGAMNFITTIFNMRA 175
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00184 176 PGITMDRMPLFVWSILVTTFLLLLSLPVLAGAITMLLTDRNFNTTFFDPAGGGDPILYQHLFW 238
|
|
| COX1 |
MTH00079 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
1.29e-103 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177148 Cd Length: 508 Bit Score: 308.53 E-value: 1.29e-103
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00079 15 DIGTLYFLFGLWSGMVGTSLSLIIRLELSKPGLLLGNGQLYNSVITAHAILMIFFMVMPSMIGGFGNWMLPLMLGAPDMS 94
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGpLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00079 95 FPRLNNLSFWLLPTSLFLILDSCFVDMGPGTSWTVYPPLST-LGHPGSSVDLAIFSLHCAGISSILGGINFMVTTKNLRS 173
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00079 174 SSISLEHMSLFVWTVFVTVFLLVLSLPVLAGAITMLLTDRNLNTSFFDPSTGGNPLLYQHLFW 236
|
|
| COX1 |
MTH00026 |
cytochrome c oxidase subunit I; Provisional |
1-223 |
5.68e-94 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 164599 Cd Length: 534 Bit Score: 284.60 E-value: 5.68e-94
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMA 80
Cdd:MTH00026 15 DIGSLYLVFGALSGAIGTAFSMLIRLELSSPGSMLGDDHLYNVIVTAHAFVMIFFLVMPTMIGGFGNWFVPLMIGAPDMA 94
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:MTH00026 95 FPRLNNISFWLLPPALFLLLGSSLVEQGAGTGWTVYPPLASIQAHSGGSVDMAIFSLHLAGLSSILGAMNFITTVMNMRT 174
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00026 175 PGMTMSRIPLFVWSVFITAILLLLSLPVLAGAITMLLTDRNFNTTFFDPAGGGDPILYQHLFW 237
|
|
| Heme_Cu_Oxidase_I |
cd00919 |
Heme-copper oxidase subunit I. Heme-copper oxidases are transmembrane protein complexes in ... |
1-223 |
2.98e-84 |
|
Heme-copper oxidase subunit I. Heme-copper oxidases are transmembrane protein complexes in the respiratory chains of prokaryotes and mitochondria which catalyze the reduction of O2 and simultaneously pump protons across the membrane. The superfamily is diverse in terms of electron donors, subunit composition, and heme types. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. It has been proposed that Archaea acquired heme-copper oxidases through gene transfer from Gram-positive bacteria. Membership in the superfamily is defined by subunit I, which contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme and a copper ion. It also contains a low-spin heme, believed to participate in the transfer of electrons to the binuclear center. Only subunit I is common to the entire superfamily. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from the electron donor on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I of cytochrome c oxidase (CcO) and ubiquinol oxidase. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electron transfer occurs in two segments: from the electron donor to the low-spin heme, and from the low-spin heme to the binuclear center. The first segment can be a multi-step process and varies among the different families, while the second segment, a direct transfer, is consistent throughout the superfamily.
Pssm-ID: 238461 Cd Length: 463 Bit Score: 257.46 E-value: 2.98e-84
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPlMIGAPDMA 80
Cdd:cd00919 3 DIGLLYLIFAFVALLLGGLLALLIRLELATPGSLFLDPQLYNQLVTAHGVIMIFFFVMPAIFGGFGNLLPP-LIGARDLA 81
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:cd00919 82 FPRLNNLSFWLFPPGLLLLLSSVLVGGGAGTGWTFYPPLSTLSYSSGVGVDLAILGLHLAGVSSILGAINFITTILNMRA 161
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:cd00919 162 PGMTLDKMPLFVWSVLVTAILLLLALPVLAAALVMLLLDRNFGTSFFDPAGGGDPVLYQHLFW 224
|
|
| CyoB |
COG0843 |
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion]; |
1-223 |
2.23e-74 |
|
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];
Pssm-ID: 440605 Cd Length: 535 Bit Score: 233.87 E-value: 2.23e-74
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPiMIGGFGNWLVPLMIGAPDMA 80
Cdd:COG0843 17 RIGIMYLVTAFVFLLIGGLLALLMRLQLAGPGLGLLSPETYNQLFTMHGTIMIFFFATP-FLAGFGNYLVPLQIGARDMA 95
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:COG0843 96 FPRLNALSFWLYLFGGLLLLISLFVGGAADVGWTFYPPLSGLEASPGVGVDLWLLGLALFGVGSILGGVNFIVTILKMRA 175
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:COG0843 176 PGMTLMRMPLFTWAALVTSILILLAFPVLAAALLLLLLDRSLGTHFFDPAGGGDPLLWQHLFW 238
|
|
| COX1 |
MTH00048 |
cytochrome c oxidase subunit I; Provisional |
2-223 |
6.84e-67 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177123 Cd Length: 511 Bit Score: 214.16 E-value: 6.84e-67
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 2 IGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAF 81
Cdd:MTH00048 16 IGVIYTLLGVWSGFVGLSLSLLIRLNFLDPYYNVISLDVYNFLITNHGIIMIFFFLMPVLIGGFGNYLLPLLLGLSDLNL 95
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 82 PRMNNMSFWLLPPSLSLLLSSSIidMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKSQ 161
Cdd:MTH00048 96 PRLNALSAWLLVPSIVFLLLSMC--LGAGVGWTFYPPLSSSLFSSSWGVDFLMFSLHLAGVSSLFGSINFICTIYSAFMT 173
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1846443272 162 EMTLdQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:MTH00048 174 NVFS-RTSIILWSYLFTSILLLLSLPVLAAAITMLLFDRNFGSAFFDPLGGGDPVLFQHMFW 234
|
|
| Ubiquinol_Oxidase_I |
cd01662 |
Ubiquinol oxidase subunit I. Ubiquinol oxidase, the terminal oxidase in the respiratory ... |
2-223 |
2.61e-60 |
|
Ubiquinol oxidase subunit I. Ubiquinol oxidase, the terminal oxidase in the respiratory chains of aerobic bacteria, is a multi-chain transmembrane protein located in the cell membrane. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits in ubiquinol oxidase varies from two to five. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme and a copper ion. It also contains a low-spin heme, believed to participate in the transfer of electrons from ubiquinol to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from ubiquinol on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. It is generally believed that the channels contain water molecules that act as 'proton wires' to transfer the protons. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are believed to be transferred directly from ubiquinol (the electron donor) to the low-spin heme, and directly from the low-spin heme to the binuclear center.
Pssm-ID: 238832 Cd Length: 501 Bit Score: 196.65 E-value: 2.61e-60
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 2 IGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGgFGNWLVPLMIGAPDMAF 81
Cdd:cd01662 10 IGIMYIITAFVFFLRGGVDALLMRTQLALPGNDFLSPEHYNQIFTMHGTIMIFLFAMPLVFG-LMNYLVPLQIGARDVAF 88
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 82 PRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKSQ 161
Cdd:cd01662 89 PRLNALSFWLFLFGGLLLNASLLIGGFPDAGWFAYPPLSGLEYSPGVGVDYWILGLQFSGIGTLLGAINFIVTILKMRAP 168
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1846443272 162 EMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:cd01662 169 GMTLMRMPIFTWTTLVTSILILFAFPVLTAALALLELDRYFGTHFFTNALGGNPMLWQHLFW 230
|
|
| COX1 |
pfam00115 |
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key ... |
1-223 |
4.64e-46 |
|
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key enzyme in aerobic metabolism. Proton pumping haem-copper oxidases represent the terminal, energy-transfer enzymes of respiratory chains in prokaryotes and eukaryotes. The CuB-haem a3 (or haem o) binuclear centre, associated with the largest subunit I of cytochrome c and ubiquinol oxidases (E.C:1.10.3.11), is directly involved in the coupling between dioxygen reduction and proton pumping. Some terminal oxidases generate a transmembrane proton gradient across the plasma membrane (prokaryotes) or the mitochondrial inner membrane (eukaryotes). The enzyme complex consists of 3-4 subunits (prokaryotes) up to 13 polypeptides (mammals) of which only the catalytic subunit (equivalent to mammalian subunit I (COXI) is found in all haem-copper respiratory oxidases. The presence of a bimetallic centre (formed by a high-spin haem and copper B) as well as a low-spin haem, both ligated to six conserved histidine residues near the outer side of four transmembrane spans within CO I is common to all family members.
Pssm-ID: 459678 Cd Length: 432 Bit Score: 157.73 E-value: 4.64e-46
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 1 DIGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPiMIGGFGNWLVPLMIGAPDMA 80
Cdd:pfam00115 1 RIGLLYLVTALVWFLVGGLLGLLIRLQLAFPGLNFLSPLTYNQLRTLHGNLMIFWFATP-FLFGFGNYLVPLMIGARDMA 79
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 81 FPRMNNMSFWllpPSLSLLLSSSIIDMGAGTGWTVYPPLAGplahsgpaVDLAIFSLHLAGVSSILGAINFITTTINMKS 160
Cdd:pfam00115 80 FPRLNALSFW---LVVLGAVLLLASFGGATTGWTEYPPLVG--------VDLWYIGLLLAGVSSLLGAINFIVTILKRRA 148
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1846443272 161 QEMTLdQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNtsffdpAGGGDPILYQHLFW 223
Cdd:pfam00115 149 PGMTL-RMPLFVWAILATAILILLAFPVLAAALLLLLLDRSLG------AGGGDPLLDQHLFW 204
|
|
| QoxB |
TIGR02882 |
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type ... |
2-223 |
1.88e-40 |
|
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type quinone oxidase, one of several bacterial terminal oxidases. This complex couples oxidation of reduced quinones with the reduction of molecular oxygen to water and the pumping of protons to form a proton gradient utilized for ATP production. aa3-type oxidases contain two heme a cofactors as well as copper atoms in the active site. [Energy metabolism, Electron transport]
Pssm-ID: 131928 Cd Length: 643 Bit Score: 146.15 E-value: 1.88e-40
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 2 IGTLYFIFGAWSGMIGTALSMLIRMELSIPGHLICDDQIYNVIVTAHAFIMIFFMVMPIMIGgFGNWLVPLMIGAPDMAF 81
Cdd:TIGR02882 53 IGVMYIICAVLMLFRGGIDALLMRAQLTVPDNKFLDAQHYNEIFTTHGVIMIIFMAMPFIIG-LMNIVVPLQIGARDVAF 131
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 82 PRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLAGPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKSQ 161
Cdd:TIGR02882 132 PVLNALSFWLFFAGAMLFNISFVIGGSPDAGWTNYAPLAGPEFSPGVGVNYYLIALQISGIGTLMTGINFFVTILKMRAP 211
|
170 180 190 200 210 220
....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1846443272 162 EMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFW 223
Cdd:TIGR02882 212 GMKLMQMPMFTWTTLITTLIIIFAFPVLTVALALMTTDRIFDTAFFTVAHGGMPMLWANLFW 273
|
|
| PRK15017 |
PRK15017 |
cytochrome o ubiquinol oxidase subunit I; Provisional |
41-223 |
8.04e-34 |
|
cytochrome o ubiquinol oxidase subunit I; Provisional
Pssm-ID: 184978 Cd Length: 663 Bit Score: 127.74 E-value: 8.04e-34
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 41 YNVIVTAHAFIMIFFMVMPIMIGgFGNWLVPLMIGAPDMAFPRMNNMSFWLLPPSLSLLLSSSIIDMGAGTGWTVYPPLA 120
Cdd:PRK15017 99 YDQIFTAHGVIMIFFVAMPFVIG-LMNLVVPLQIGARDVAFPFLNNLSFWFTVVGVILVNVSLGVGEFAQTGWLAYPPLS 177
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1846443272 121 GPLAHSGPAVDLAIFSLHLAGVSSILGAINFITTTINMKSQEMTLDQMPLFVWSVMITAILLLLSLPVLAGAITMLLTDR 200
Cdd:PRK15017 178 GIEYSPGVGVDYWIWSLQLSGIGTTLTGINFFVTILKMRAPGMTMFKMPVFTWASLCANVLIIASFPILTVTVALLTLDR 257
|
170 180
....*....|....*....|...
gi 1846443272 201 NLNTSFFDPAGGGDPILYQHLFW 223
Cdd:PRK15017 258 YLGTHFFTNDMGGNMMMYINLIW 280
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