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Conserved domains on  [gi|55584064|sp|P68194|]
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RecName: Full=Hemoglobin subunit beta-2; AltName: Full=Beta-2-globin; AltName: Full=Hemoglobin beta-2 chain

Protein Classification

hemoglobin beta-like protein( domain architecture ID 10172378)

hemoglobin beta-like protein is either one of gamma, delta, epsilon, or related Hb subunits. Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation.

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
Hb-beta-like cd08925
Hemoglobin beta, gamma, delta, epsilon, and related Hb subunits; Hb is the oxygen transport ...
 7-145 1.14e-83

Hemoglobin beta, gamma, delta, epsilon, and related Hb subunits; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary hemoglobin throughout most of gestation. These Hbs types have differences in O2 affinity and in their interactions with allosteric effectors.


:

Pssm-ID: 381262  Cd Length: 139  Bit Score: 241.39  E-value: 1.14e-83
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064   7 EKGLVNGLWSKVNVDEVGGEALGRLLVVYPWTQRFFQSFGDLSSADAIMSNAKVKAHGKKVLNSFSDGLKNIDDLKGAFA 86
Cdd:cd08925   1 EKAAITAVWGKVDVDEVGAEALARLLIVYPWTQRYFSSFGDLSSAAAIAGNPKVAAHGKKVLGALGEAIKHLDDIKATFA 80

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*....
gi 55584064  87 KLSELHCDKLHVDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVVAGVASALAHRY 145
Cdd:cd08925  81 DLSEKHSEKLHVDPENFKLLGDCLVVVLAAHFGKEFTPEVQAAWEKFFAVVVDALSKGY 139
 
Name Accession Description Interval E-value
Hb-beta-like cd08925
Hemoglobin beta, gamma, delta, epsilon, and related Hb subunits; Hb is the oxygen transport ...
 7-145 1.14e-83

Hemoglobin beta, gamma, delta, epsilon, and related Hb subunits; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary hemoglobin throughout most of gestation. These Hbs types have differences in O2 affinity and in their interactions with allosteric effectors.


Pssm-ID: 381262  Cd Length: 139  Bit Score: 241.39  E-value: 1.14e-83
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064   7 EKGLVNGLWSKVNVDEVGGEALGRLLVVYPWTQRFFQSFGDLSSADAIMSNAKVKAHGKKVLNSFSDGLKNIDDLKGAFA 86
Cdd:cd08925   1 EKAAITAVWGKVDVDEVGAEALARLLIVYPWTQRYFSSFGDLSSAAAIAGNPKVAAHGKKVLGALGEAIKHLDDIKATFA 80

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*....
gi 55584064  87 KLSELHCDKLHVDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVVAGVASALAHRY 145
Cdd:cd08925  81 DLSEKHSEKLHVDPENFKLLGDCLVVVLAAHFGKEFTPEVQAAWEKFFAVVVDALSKGY 139
Globin pfam00042
Globin;
26-141 2.43e-34

Globin;


Pssm-ID: 459646 [Multi-domain]  Cd Length: 117  Bit Score: 115.85  E-value: 2.43e-34
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064    26 EALGRLLVVYPWTQRFFQSFGDlsSADAIMSNAKVKAHGKKVLNSFSDGLKNIDDLK---GAFAKLSELHCDKLHVDPEN 102
Cdd:pfam00042   2 EILARLFTAYPDTKAYFPRFEK--SADDLKGSPKFKAHGKKVLAALGEAVKHLDDLAalnAALKKLGARHKEKRGVDPAN 79

                          90       100       110
                  ....*....|....*....|....*....|....*....
gi 55584064   103 FRLLGNVLVCVLAHHFGhEFNPQVQAAFQKVVAGVASAL 141
Cdd:pfam00042  80 FKLFGEALLVVLAEHLG-EFTPETKAAWDKALDVIAAAL 117
 
Name Accession Description Interval E-value
Hb-beta-like cd08925
Hemoglobin beta, gamma, delta, epsilon, and related Hb subunits; Hb is the oxygen transport ...
 7-145 1.14e-83

Hemoglobin beta, gamma, delta, epsilon, and related Hb subunits; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary hemoglobin throughout most of gestation. These Hbs types have differences in O2 affinity and in their interactions with allosteric effectors.


Pssm-ID: 381262  Cd Length: 139  Bit Score: 241.39  E-value: 1.14e-83
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064   7 EKGLVNGLWSKVNVDEVGGEALGRLLVVYPWTQRFFQSFGDLSSADAIMSNAKVKAHGKKVLNSFSDGLKNIDDLKGAFA 86
Cdd:cd08925   1 EKAAITAVWGKVDVDEVGAEALARLLIVYPWTQRYFSSFGDLSSAAAIAGNPKVAAHGKKVLGALGEAIKHLDDIKATFA 80

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*....
gi 55584064  87 KLSELHCDKLHVDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVVAGVASALAHRY 145
Cdd:cd08925  81 DLSEKHSEKLHVDPENFKLLGDCLVVVLAAHFGKEFTPEVQAAWEKFFAVVVDALSKGY 139
Hb cd14765
Hemoglobins; Hb is the oxygen transport protein of erythrocytes. It is an allosterically ...
 7-142 6.81e-67

Hemoglobins; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which, in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary Hb throughout most of gestation. These Hb types have differences in O2 affinity and in their interactions with allosteric effectors.


Pssm-ID: 381278  Cd Length: 131  Bit Score: 198.73  E-value: 6.81e-67
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064   7 EKGLVNGLWSKVNVDEVGGEALGRLLVVYPWTQRFFQSFGDLSSAdaimsNAKVKAHGKKVLNSFSDGLKNIDDLKGAFA 86
Cdd:cd14765   1 EKSTIKALWGKVNVEEYGAEALARLFVVYPWTKRYFPKFDDSSSG-----NPKVKAHGKKVLGALGDAVKHLDDLKNTFS 75

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*.
gi 55584064  87 KLSELHCDKLHVDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVVAGVASALA 142
Cdd:cd14765  76 DLSELHADKLHVDPENFKLLSDCLIVVLAAHLGKEFTPEVHAAWDKFLAVVAAALS 131
Hb-alpha-like cd08927
Hemoglobin alpha, zeta, mu, theta, and related Hb subunits; Hb is the oxygen transport protein ...
 3-145 2.58e-43

Hemoglobin alpha, zeta, mu, theta, and related Hb subunits; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary hemoglobin throughout most of gestation. These Hbs types have differences in O2 affinity and in their interactions with allosteric effectors.


Pssm-ID: 381263  Cd Length: 140  Bit Score: 139.63  E-value: 2.58e-43
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064   3 LSAEEKGLVNGLWSKV--NVDEVGGEALGRLLVVYPWTQRFFQSFgDLSSAdaimsNAKVKAHGKKVLNSFSDGLKNIDD 80
Cdd:cd08927   1 LSAADKALIKALWGKIagHAEAIGAEALARMFLSFPQTKTYFPHF-DLSAG-----SAQVKAHGKKVMDALGDAVKHLDD 74

                        90       100       110       120       130       140
                ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 55584064  81 LKGAFAKLSELHCDKLHVDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVVAGVASALAHRY 145
Cdd:cd08927  75 LPGALSKLSDLHAYKLRVDPVNFKLLSHCILVTLAAHLPEDFTPEVHAALDKFLAAVSHVLSSKY 139
Globin pfam00042
Globin;
26-141 2.43e-34

Globin;


Pssm-ID: 459646 [Multi-domain]  Cd Length: 117  Bit Score: 115.85  E-value: 2.43e-34
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064    26 EALGRLLVVYPWTQRFFQSFGDlsSADAIMSNAKVKAHGKKVLNSFSDGLKNIDDLK---GAFAKLSELHCDKLHVDPEN 102
Cdd:pfam00042   2 EILARLFTAYPDTKAYFPRFEK--SADDLKGSPKFKAHGKKVLAALGEAVKHLDDLAalnAALKKLGARHKEKRGVDPAN 79

                          90       100       110
                  ....*....|....*....|....*....|....*....
gi 55584064   103 FRLLGNVLVCVLAHHFGhEFNPQVQAAFQKVVAGVASAL 141
Cdd:pfam00042  80 FKLFGEALLVVLAEHLG-EFTPETKAAWDKALDVIAAAL 117
Mb cd08926
Animal Myoglobins; Myoglobin (Mb) is a monomeric pentacoordinate heme-bound globin protein ...
 10-145 4.31e-19

Animal Myoglobins; Myoglobin (Mb) is a monomeric pentacoordinate heme-bound globin protein whose expression has long been considered limited to cardiomyocytes and striated skeletal muscle cell, however it has recently been found localized in a wide variety of tissues including smooth muscle cells. As a physiological catalyst, it can modulate reactive oxygen species levels, facilitate oxygen diffusion within the cell, and scavenge or generate NO depending on oxygen tensions within the cell. Through its NO dioxygenase and nitrite reductase activities, Mb regulates mitochondrial function in energy-demanding tissues.


Pssm-ID: 271277  Cd Length: 148  Bit Score: 77.88  E-value: 4.31e-19
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064  10 LVNGLWSKVNVD--EVGGEALGRLLVVYPWTQRFFQSFGDLSSADaIMSNAKVKAHGKKVLNSFSDGLKNIDDLKGAFAK 87
Cdd:cd08926   5 LVLKVWAKVEADltGIGQEVLLRLFKEHPETQEHFPKFKGISQDD-LKSNEDLKKHGVTVLTALGEILKQKGSHEAELKP 83

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*...
gi 55584064  88 LSELHCDKLHVDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVVAGVASALAHRY 145
Cdd:cd08926  84 LAQTHATKHKIPPKYFELITEIIVKVLAEKHPSEMGAPAQAAFSKAFELICSDIEANY 141
Mb-like cd01040
myoglobin-like; M family globin domain; This family includes chimeric (FHbs/flavohemoglobins) ...
 15-141 5.13e-19

myoglobin-like; M family globin domain; This family includes chimeric (FHbs/flavohemoglobins) and single-domain globins: FHbs, Ngbs/neuroglobins, Cygb/cytoglobins, GbE/avian eye specific globin E, GbX/globin X, amphibian GbY/globin Y, Mb/myoglobin, HbA/hemoglobin-alpha, HbB/hemoglobin-beta, SDgbs/single-domain globins related to FHbs, and Adgb/androglobin. The M family exhibits the canonical secondary structure of hemoglobins, a 3-over-3 alpha-helical sandwich structure (3/3 Mb-fold), built by eight alpha-helical segments (named A through H). In Adgbs, the globin domain is split into two: helices C-H are followed by helices A-B and the two parts are separated by the IQ motif. Although rearranged, the globin domain of most Adgbs contains a number of conserved residues which play critical roles in heme-coordination and gas ligand binding. Adgbs have been omitted from this A-H helix cd.


Pssm-ID: 381254  Cd Length: 133  Bit Score: 77.50  E-value: 5.13e-19
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064  15 WSKV--NVDEVGGEALGRLLVVYPWTQRFFQSFGDLSsaDAIMSNAKVKAHGKKVLNSFSDGLKNIDDLKGAFAKLSEL- 91
Cdd:cd01040   5 WARVkkDKEEFGVAIFLRLFEANPELKKLFPKFAGVD--LDLKGSPEFKAHAKRVVGALDSLIDNLDDPEALDALLRKLg 82

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|..
gi 55584064  92 --HCdKLHVDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVVAGVASAL 141
Cdd:cd01040  83 krHK-RRGVTPEHFEVFGEALLETLEEVLGEAFTPEVEAAWRKLLDYIANAI 133
Cygb cd08924
Cytoglobin and related globins; Cygb is a hexacoordinated heme-containing protein, able to ...
 3-135 1.40e-18

Cytoglobin and related globins; Cygb is a hexacoordinated heme-containing protein, able to bind O2, NO and carbon monoxide. It has both nitric oxide dioxygenase and lipid peroxidase activities, and potentially participates in the maintenance of normal phenotype by implementing a homeostatic effect, to counteract stress conditions imposed on a cell. Cygb is implicated in multiple human pathologies: it is up-regulated in fibrosis and neurodegenerative disorders, and down-regulated in multiple cancer types, and may have a tumor suppressor role. It is expressed ubiquitously across a broad range of vertebrate organs including liver, heart, brain, lung, retina, and gut. In the human brain, it was detected at high levels in the habenula, hypothalamus, thalamus, hippocampus and pontine tegmental nuclei, detected at a low level in the cerebral cortex, and undetected in the cerebellar cortex.


Pssm-ID: 271275  Cd Length: 153  Bit Score: 76.80  E-value: 1.40e-18
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064   3 LSAEEKGLVNGLWSKV--NVDEVGGEALGRLLVVYPWTQRFFQSFGDLSSADAIMSNAKVKAHGKKVLNSFSDGLKNIDD 80
Cdd:cd08924   1 LTEAERKVIQDTWARVyaNCEDVGVAILVRFFVNFPSAKQYFSQFKHMEDPLEMERSSQLRKHARRVMGALNTVVENLHD 80

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*...
gi 55584064  81 ---LKGAFAKLSELHCDKLHVDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVVA 135
Cdd:cd08924  81 pdkVSSVLALVGKAHALKHKVEPVYFKILSGVILEVLAEEFAQDFTPEVQSAWSKLRG 138
CeGLB25-like cd14766
Caenorhabditis elegans globin GLB-25, and related globins; The C. elegans genome contains 33 ...
 19-134 1.06e-05

Caenorhabditis elegans globin GLB-25, and related globins; The C. elegans genome contains 33 genes encoding globins that are all transcribed. These are very diverse in gene and protein structure and are localized in a variety of cells. The C. elegans globin GLB-25 (locus tag T06A1.3), like the majority of them, was expressed in neuronal cells in the head and tail portions of the body and in the nerve cord.


Pssm-ID: 381279  Cd Length: 137  Bit Score: 42.31  E-value: 1.06e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064  19 NVDEVGGEALGRLLVVYPWTQRFF-QSFGDLSSADAIMSNAKVKAHGKKVLNSFSDGLKNIDDLKGAFAKLSEL---HCD 94
Cdd:cd14766  11 KIDETGKTMFLRMLTENPELKELFpKLKNLEDEEDELRSSEILENHAARVMDTLDEAISNIENVDYVIDLLHKVgkmHAK 90

                        90       100       110       120
                ....*....|....*....|....*....|....*....|
gi 55584064  95 KLHVDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVV 134
Cdd:cd14766  91 KPGFRPEMFWKIEEPFLEAVSETLGDRYTDNMENIYRKTI 130
Ngb cd08920
Neuroglobins; The Ngb described in this subfamily is a hexacoordinated heme globin chiefly ...
 3-141 1.03e-03

Neuroglobins; The Ngb described in this subfamily is a hexacoordinated heme globin chiefly expressed in neurons of the brain and retina. In the human brain, it is highly expressed in the hypothalamus, amygdala, and in the pontine tegmental nuclei. It affords protection of brain neurons from ischemia and hypoxia. In rats, it plays a role in the neuroprotection of limb ischemic preconditioning (LIP). It plays roles as: a sensor of oxygen levels; a store or reservoir for oxygen; a facilitator for oxygen transport; a regulator of ROS; and a scavenger of nitric oxide. It also functions in the protection against apoptosis and in sleep regulation. This subgroup contains Ngb from mammalian and non-mammalian vertebrates, including fish, amphibians and reptiles; the functionally pentacoordinated acoelomorph Symsagittifera roscoffensis Ngb does not belong to this subgroup.


Pssm-ID: 271272  Cd Length: 148  Bit Score: 37.12  E-value: 1.03e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064   3 LSAEEKGLVNGLWSKVNVDEV--GGEALGRLLVVYPWTQRFFQ-SFGDLSSADAIMSNAKVKAHGKKVLNSFSDGLKNID 79
Cdd:cd08920   1 LSRPQKELIRESWRSVSRSPLehGTVLFSRLFELEPDLLPLFQyNGRQFSSPQDCLSSPEFLDHIRKVMLVIDAAVSHLE 80

                        90       100       110       120       130       140
                ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 55584064  80 DLkgafAKLSELHCD--KLH----VDPENFRLLGNVLVCVLAHHFGHEFNPQVQAAFQKVVAGVASAL 141
Cdd:cd08920  81 DL----SSLEEYLTSlgRKHravgVKLESFSTVGESLLYMLESSLGPAFTPDTREAWSTLYGAVVQAM 144
FHb_fungal-globin cd19754
Globin domain of fungal flavohemoglobin; FlavoHbs function primarily as nitric oxide ...
 30-141 4.38e-03

Globin domain of fungal flavohemoglobin; FlavoHbs function primarily as nitric oxide dioxygenases (NODs, EC 1.14.12.17), converting NO and O2 to inert NO3- (nitrate). They have an N-terminal globin domain and a C-terminal ferredoxin reductase-like NAD- and FAD-binding domain, and use the reducing power of cellular NAD(P)H to drive regeneration of the ferrous heme. They protect from nitrosative stress (the broad range of cellular toxicities caused by NO), and modulate NO signaling pathways. NO scavenging by flavoHb attenuates the expression of the nitrosative stress response, affects the swarming behavior of Escherichia coli, and maintains squid-Vibrio fischeri and Medicago truncatula-Sinorhizobium meliloti symbioses. FlavoHb expression affects Aspergillus nidulans sexual development and mycotoxin production, and Dictyostelium discoideum development.


Pssm-ID: 381294  Cd Length: 141  Bit Score: 35.39  E-value: 4.38e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 55584064  30 RLLVVYPWTQRFFQsfgdlssadaiMSNAKVKAHGKKVLNSFSDGLKNIDDL---KGAFAKLSELHCDkLHVDPENFRLL 106
Cdd:cd19754  30 YMLKRYPEVKPYFN-----------ETNQKLLRQPKILAFALLQYAKNIDDLtplSGFVEQIVSKHVG-LQVKPEHYPIV 97

                        90       100       110
                ....*....|....*....|....*....|....*.
gi 55584064 107 GNVLVCVLAHHFGHEF-NPQVQAAFQKVVAGVASAL 141
Cdd:cd19754  98 GECLIETMKELLPEAVaTDEFIEAWTTAYGNLANIL 133
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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