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Conserved domains on  [gi|1039793382|ref|XP_017168890|]
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ras-related protein Rab-6B isoform X4 [Mus musculus]

Protein Classification

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
P-loop_NTPase super family cl38936
P-loop containing Nucleoside Triphosphate Hydrolases; Members of the P-loop NTPase domain ...
 50-69 5.01e-09

P-loop containing Nucleoside Triphosphate Hydrolases; Members of the P-loop NTPase domain superfamily are characterized by a conserved nucleotide phosphate-binding motif, also referred to as the Walker A motif (GxxxxGK[S/T], where x is any residue), and the Walker B motif (hhhh[D/E], where h is a hydrophobic residue). The Walker A and B motifs bind the beta-gamma phosphate moiety of the bound nucleotide (typically ATP or GTP) and the Mg2+ cation, respectively. The P-loop NTPases are involved in diverse cellular functions, and they can be divided into two major structural classes: the KG (kinase-GTPase) class which includes Ras-like GTPases and its circularly permutated YlqF-like; and the ASCE (additional strand catalytic E) class which includes ATPase Binding Cassette (ABC), DExD/H-like helicases, 4Fe-4S iron sulfur cluster binding proteins of NifH family, RecA-like F1-ATPases, and ATPases Associated with a wide variety of Activities (AAA). Also included are a diverse set of nucleotide/nucleoside kinase families.


The actual alignment was detected with superfamily member cd01861:

Pssm-ID: 476819 [Multi-domain]  Cd Length: 161  Bit Score: 50.70  E-value: 5.01e-09
                          10        20
                  ....*....|....*....|
gi 1039793382  50 VGKTSLITRFMYDSFDNTYQ 69
Cdd:cd01861    11 VGKTSIITRFMYDTFDNQYQ 30
 
Name Accession Description Interval E-value
Rab6 cd01861
Rab GTPase family 6 (Rab6); Rab6 is involved in microtubule-dependent transport pathways ...
 50-69 5.01e-09

Rab GTPase family 6 (Rab6); Rab6 is involved in microtubule-dependent transport pathways through the Golgi and from endosomes to the Golgi. Rab6A of mammals is implicated in retrograde transport through the Golgi stack, and is also required for a slow, COPI-independent, retrograde transport pathway from the Golgi to the endoplasmic reticulum (ER). This pathway may allow Golgi residents to be recycled through the ER for scrutiny by ER quality-control systems. Yeast Ypt6p, the homolog of the mammalian Rab6 GTPase, is not essential for cell viability. Ypt6p acts in endosome-to-Golgi, in intra-Golgi retrograde transport, and possibly also in Golgi-to-ER trafficking. GTPase activating proteins (GAPs) interact with GTP-bound Rab and accelerate the hydrolysis of GTP to GDP. Guanine nucleotide exchange factors (GEFs) interact with GDP-bound Rabs to promote the formation of the GTP-bound state. Rabs are further regulated by guanine nucleotide dissociation inhibitors (GDIs), which facilitate Rab recycling by masking C-terminal lipid binding and promoting cytosolic localization. Most Rab GTPases contain a lipid modification site at the C-terminus, with sequence motifs CC, CXC, or CCX. Lipid binding is essential for membrane attachment, a key feature of most Rab proteins. Due to the presence of truncated sequences in this CD, the lipid modification site is not available for annotation.


Pssm-ID: 206654 [Multi-domain]  Cd Length: 161  Bit Score: 50.70  E-value: 5.01e-09
                          10        20
                  ....*....|....*....|
gi 1039793382  50 VGKTSLITRFMYDSFDNTYQ 69
Cdd:cd01861    11 VGKTSIITRFMYDTFDNQYQ 30
Roc pfam08477
Ras of Complex, Roc, domain of DAPkinase; Roc, or Ras of Complex, proteins are mitochondrial ...
 50-69 5.62e-05

Ras of Complex, Roc, domain of DAPkinase; Roc, or Ras of Complex, proteins are mitochondrial Rho proteins (Miro-1, and Miro-2) and atypical Rho GTPases. Full-length proteins have a unique domain organization, with tandem GTP-binding domains and two EF hand domains (pfam00036) that may bind calcium. They are also larger than classical small GTPases. It has been proposed that they are involved in mitochondrial homeostasis and apoptosis.


Pssm-ID: 462490 [Multi-domain]  Cd Length: 114  Bit Score: 39.03  E-value: 5.62e-05
                          10        20
                  ....*....|....*....|
gi 1039793382  50 VGKTSLITRFMYDSFDNTYQ 69
Cdd:pfam08477  10 VGKTSLLKRFVDDTFDPKYK 29
RAB smart00175
Rab subfamily of small GTPases; Rab GTPases are implicated in vesicle trafficking.
 50-69 8.14e-03

Rab subfamily of small GTPases; Rab GTPases are implicated in vesicle trafficking.


Pssm-ID: 197555 [Multi-domain]  Cd Length: 164  Bit Score: 34.02  E-value: 8.14e-03
                           10        20
                   ....*....|....*....|
gi 1039793382   50 VGKTSLITRFMYDSFDNTYQ 69
Cdd:smart00175  11 VGKSSLLSRFTDGKFSEQYK 30
 
Name Accession Description Interval E-value
Rab6 cd01861
Rab GTPase family 6 (Rab6); Rab6 is involved in microtubule-dependent transport pathways ...
 50-69 5.01e-09

Rab GTPase family 6 (Rab6); Rab6 is involved in microtubule-dependent transport pathways through the Golgi and from endosomes to the Golgi. Rab6A of mammals is implicated in retrograde transport through the Golgi stack, and is also required for a slow, COPI-independent, retrograde transport pathway from the Golgi to the endoplasmic reticulum (ER). This pathway may allow Golgi residents to be recycled through the ER for scrutiny by ER quality-control systems. Yeast Ypt6p, the homolog of the mammalian Rab6 GTPase, is not essential for cell viability. Ypt6p acts in endosome-to-Golgi, in intra-Golgi retrograde transport, and possibly also in Golgi-to-ER trafficking. GTPase activating proteins (GAPs) interact with GTP-bound Rab and accelerate the hydrolysis of GTP to GDP. Guanine nucleotide exchange factors (GEFs) interact with GDP-bound Rabs to promote the formation of the GTP-bound state. Rabs are further regulated by guanine nucleotide dissociation inhibitors (GDIs), which facilitate Rab recycling by masking C-terminal lipid binding and promoting cytosolic localization. Most Rab GTPases contain a lipid modification site at the C-terminus, with sequence motifs CC, CXC, or CCX. Lipid binding is essential for membrane attachment, a key feature of most Rab proteins. Due to the presence of truncated sequences in this CD, the lipid modification site is not available for annotation.


Pssm-ID: 206654 [Multi-domain]  Cd Length: 161  Bit Score: 50.70  E-value: 5.01e-09
                          10        20
                  ....*....|....*....|
gi 1039793382  50 VGKTSLITRFMYDSFDNTYQ 69
Cdd:cd01861    11 VGKTSIITRFMYDTFDNQYQ 30
Roc pfam08477
Ras of Complex, Roc, domain of DAPkinase; Roc, or Ras of Complex, proteins are mitochondrial ...
 50-69 5.62e-05

Ras of Complex, Roc, domain of DAPkinase; Roc, or Ras of Complex, proteins are mitochondrial Rho proteins (Miro-1, and Miro-2) and atypical Rho GTPases. Full-length proteins have a unique domain organization, with tandem GTP-binding domains and two EF hand domains (pfam00036) that may bind calcium. They are also larger than classical small GTPases. It has been proposed that they are involved in mitochondrial homeostasis and apoptosis.


Pssm-ID: 462490 [Multi-domain]  Cd Length: 114  Bit Score: 39.03  E-value: 5.62e-05
                          10        20
                  ....*....|....*....|
gi 1039793382  50 VGKTSLITRFMYDSFDNTYQ 69
Cdd:pfam08477  10 VGKTSLLKRFVDDTFDPKYK 29
Ras_dva cd04147
Ras - dorsal-ventral anterior localization (Ras-dva) family; Ras-dva subfamily. Ras-dva (Ras - ...
 48-69 1.20e-04

Ras - dorsal-ventral anterior localization (Ras-dva) family; Ras-dva subfamily. Ras-dva (Ras - dorsal-ventral anterior localization) subfamily consists of a set of proteins characterized only in Xenopus leavis, to date. In Xenopus Ras-dva expression is activated by the transcription factor Otx2 and begins during gastrulation throughout the anterior ectoderm. Ras-dva expression is inhibited in the anterior neural plate by factor Xanf1. Downregulation of Ras-dva results in head development abnormalities through the inhibition of several regulators of the anterior neural plate and folds patterning, including Otx2, BF-1, Xag2, Pax6, Slug, and Sox9. Downregulation of Ras-dva also interferes with the FGF-8a signaling within the anterior ectoderm. Most Ras proteins contain a lipid modification site at the C-terminus, with a typical sequence motif CaaX, where a = an aliphatic amino acid and X = any amino acid. Lipid binding is essential for membrane attachment, a key feature of most Ras proteins.


Pssm-ID: 206714 [Multi-domain]  Cd Length: 197  Bit Score: 39.05  E-value: 1.20e-04
                          10        20
                  ....*....|....*....|..
gi 1039793382  48 AKVGKTSLITRFMYDSFDNTYQ 69
Cdd:cd04147     8 AGVGKTALIQRFLYDTFEPKHR 29
Rab cd00154
Ras-related in brain (Rab) family of small guanosine triphosphatases (GTPases); Rab GTPases ...
 50-69 1.66e-03

Ras-related in brain (Rab) family of small guanosine triphosphatases (GTPases); Rab GTPases form the largest family within the Ras superfamily. There are at least 60 Rab genes in the human genome, and a number of Rab GTPases are conserved from yeast to humans. Rab GTPases are small, monomeric proteins that function as molecular switches to regulate vesicle trafficking pathways. The different Rab GTPases are localized to the cytosolic face of specific intracellular membranes, where they regulate distinct steps in membrane traffic pathways. In the GTP-bound form, Rab GTPases recruit specific sets of effector proteins onto membranes. Through their effectors, Rab GTPases regulate vesicle formation, actin- and tubulin-dependent vesicle movement, and membrane fusion. GTPase activating proteins (GAPs) interact with GTP-bound Rab and accelerate the hydrolysis of GTP to GDP. Guanine nucleotide exchange factors (GEFs) interact with GDP-bound Rabs to promote the formation of the GTP-bound state. Rabs are further regulated by guanine nucleotide dissociation inhibitors (GDIs), which mask C-terminal lipid binding and promote cytosolic localization. While most unicellular organisms possess 5-20 Rab members, several have been found to possess 60 or more Rabs; for many of these Rab isoforms, homologous proteins are not found in other organisms. Most Rab GTPases contain a lipid modification site at the C-terminus, with sequence motifs CC, CXC, or CCX. Lipid binding is essential for membrane attachment, a key feature of most Rab proteins. Since crystal structures often lack C-terminal residues, the lipid modification site is not available for annotation in many of the CDs in the hierarchy, but is included where possible.


Pssm-ID: 206640 [Multi-domain]  Cd Length: 159  Bit Score: 35.89  E-value: 1.66e-03
                          10        20
                  ....*....|....*....|
gi 1039793382  50 VGKTSLITRFMYDSFDNTYQ 69
Cdd:cd00154    11 VGKTSLLLRFVDNKFSENYK 30
Rab32_Rab38 cd04107
Rab GTPase families 18 (Rab18) and 32 (Rab32); Rab38/Rab32 subfamily. Rab32 and Rab38 are ...
 50-69 1.79e-03

Rab GTPase families 18 (Rab18) and 32 (Rab32); Rab38/Rab32 subfamily. Rab32 and Rab38 are members of the Rab family of small GTPases. Human Rab32 was first identified in platelets but it is expressed in a variety of cell types, where it functions as an A-kinase anchoring protein (AKAP). Rab38 has been shown to be melanocyte-specific. GTPase activating proteins (GAPs) interact with GTP-bound Rab and accelerate the hydrolysis of GTP to GDP. Guanine nucleotide exchange factors (GEFs) interact with GDP-bound Rabs to promote the formation of the GTP-bound state. Rabs are further regulated by guanine nucleotide dissociation inhibitors (GDIs), which facilitate Rab recycling by masking C-terminal lipid binding and promoting cytosolic localization. Most Rab GTPases contain a lipid modification site at the C-terminus, with sequence motifs CC, CXC, or CCX. Lipid binding is essential for membrane attachment, a key feature of most Rab proteins.


Pssm-ID: 206692 [Multi-domain]  Cd Length: 201  Bit Score: 35.75  E-value: 1.79e-03
                          10        20
                  ....*....|....*....|
gi 1039793382  50 VGKTSLITRFMYDSFDNTYQ 69
Cdd:cd04107    11 VGKTSIIKRYVHGVFSQHYK 30
Rab21 cd04123
Rab GTPase family 21 (Rab21); The localization and function of Rab21 are not clearly defined, ...
 49-65 3.52e-03

Rab GTPase family 21 (Rab21); The localization and function of Rab21 are not clearly defined, with conflicting data reported. Rab21 has been reported to localize in the ER in human intestinal epithelial cells, with partial colocalization with alpha-glucosidase, a late endosomal/lysosomal marker. More recently, Rab21 was shown to colocalize with and affect the morphology of early endosomes. In Dictyostelium, GTP-bound Rab21, together with two novel LIM domain proteins, LimF and ChLim, has been shown to regulate phagocytosis. GTPase activating proteins (GAPs) interact with GTP-bound Rab and accelerate the hydrolysis of GTP to GDP. Guanine nucleotide exchange factors (GEFs) interact with GDP-bound Rabs to promote the formation of the GTP-bound state. Rabs are further regulated by guanine nucleotide dissociation inhibitors (GDIs), which facilitate Rab recycling by masking C-terminal lipid binding and promoting cytosolic localization. Most Rab GTPases contain a lipid modification site at the C-terminus, with sequence motifs CC, CXC, or CCX. Lipid binding is essential for membrane attachment, a key feature of most Rab proteins. Due to the presence of truncated sequences in this CD, the lipid modification site is not available for annotation.


Pssm-ID: 133323 [Multi-domain]  Cd Length: 162  Bit Score: 34.89  E-value: 3.52e-03
                          10
                  ....*....|....*..
gi 1039793382  49 KVGKTSLITRFMYDSFD 65
Cdd:cd04123    10 RVGKTSLVLRYVENKFN 26
Ras pfam00071
Ras family; Includes sub-families Ras, Rab, Rac, Ral, Ran, Rap Ypt1 and more. Shares P-loop ...
 50-68 6.57e-03

Ras family; Includes sub-families Ras, Rab, Rac, Ral, Ran, Rap Ypt1 and more. Shares P-loop motif with GTP_EFTU, arf and myosin_head. See pfam00009 pfam00025, pfam00063. As regards Rab GTPases, these are important regulators of vesicle formation, motility and fusion. They share a fold in common with all Ras GTPases: this is a six-stranded beta-sheet surrounded by five alpha-helices.


Pssm-ID: 425451 [Multi-domain]  Cd Length: 162  Bit Score: 34.03  E-value: 6.57e-03
                          10
                  ....*....|....*....
gi 1039793382  50 VGKTSLITRFMYDSFDNTY 68
Cdd:pfam00071  10 VGKSSLLIRFTQNKFPEEY 28
RAB smart00175
Rab subfamily of small GTPases; Rab GTPases are implicated in vesicle trafficking.
 50-69 8.14e-03

Rab subfamily of small GTPases; Rab GTPases are implicated in vesicle trafficking.


Pssm-ID: 197555 [Multi-domain]  Cd Length: 164  Bit Score: 34.02  E-value: 8.14e-03
                           10        20
                   ....*....|....*....|
gi 1039793382   50 VGKTSLITRFMYDSFDNTYQ 69
Cdd:smart00175  11 VGKSSLLSRFTDGKFSEQYK 30
 
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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