PX domain-containing protein [Caenorhabditis elegans]
Protein Classification
PX and BAR domain-containing protein( domain architecture ID 10160870)
PX (Phox homology) and BAR (Bin/Amphiphysin/Rvs) domain-containing protein, similar to sorting nexins that are involved in regulating membrane traffic and protein sorting in the endosomal system
List of domain hits
| Name | Accession | Description | Interval | E-value | ||||
| BAR_SNX5_6 | cd07621 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 5 and 6; BAR domains are dimerization, ... |
160-378 | 5.25e-107 | ||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 5 and 6; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. Members of this subfamily include SNX5, SNX6, the mammalian SNX32, and similar proteins. SNX5 and SNX6 may be components of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. The function of SNX32 is still unknown. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. : Pssm-ID: 153305 Cd Length: 219 Bit Score: 313.50 E-value: 5.25e-107
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| PX_SNX5_like | cd06892 | The phosphoinositide binding Phox Homology domain of Sorting Nexins 5 and 6; The PX domain is ... |
5-144 | 4.87e-79 | ||||
The phosphoinositide binding Phox Homology domain of Sorting Nexins 5 and 6; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. Members of this subfamily include SNX5, SNX6, and similar proteins. They contain a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain, similar to other sorting nexins including SNX1-2. The PX-BAR structural unit helps determine the specific membrane-targeting of some SNXs. SNX5 and SNX6 may be components of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. : Pssm-ID: 132802 Cd Length: 141 Bit Score: 239.26 E-value: 4.87e-79
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| Name | Accession | Description | Interval | E-value | ||||||
| BAR_SNX5_6 | cd07621 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 5 and 6; BAR domains are dimerization, ... |
160-378 | 5.25e-107 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 5 and 6; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. Members of this subfamily include SNX5, SNX6, the mammalian SNX32, and similar proteins. SNX5 and SNX6 may be components of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. The function of SNX32 is still unknown. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153305 Cd Length: 219 Bit Score: 313.50 E-value: 5.25e-107
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| PX_SNX5_like | cd06892 | The phosphoinositide binding Phox Homology domain of Sorting Nexins 5 and 6; The PX domain is ... |
5-144 | 4.87e-79 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexins 5 and 6; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. Members of this subfamily include SNX5, SNX6, and similar proteins. They contain a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain, similar to other sorting nexins including SNX1-2. The PX-BAR structural unit helps determine the specific membrane-targeting of some SNXs. SNX5 and SNX6 may be components of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. Pssm-ID: 132802 Cd Length: 141 Bit Score: 239.26 E-value: 4.87e-79
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| Vps5 | pfam09325 | Vps5 C terminal like; Vps5 is a sorting nexin that functions in membrane trafficking. This is ... |
178-369 | 1.30e-13 | ||||||
Vps5 C terminal like; Vps5 is a sorting nexin that functions in membrane trafficking. This is the C terminal dimerization domain. Pssm-ID: 430527 [Multi-domain] Cd Length: 236 Bit Score: 69.62 E-value: 1.30e-13
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| PX | pfam00787 | PX domain; PX domains bind to phosphoinositides. |
40-144 | 1.29e-09 | ||||||
PX domain; PX domains bind to phosphoinositides. Pssm-ID: 459940 Cd Length: 84 Bit Score: 54.55 E-value: 1.29e-09
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| PX | smart00312 | PhoX homologous domain, present in p47phox and p40phox; Eukaryotic domain of unknown function ... |
23-142 | 1.01e-03 | ||||||
PhoX homologous domain, present in p47phox and p40phox; Eukaryotic domain of unknown function present in phox proteins, PLD isoforms, a PI3K isoform. Pssm-ID: 214610 Cd Length: 105 Bit Score: 38.09 E-value: 1.01e-03
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| COG5391 | COG5391 | Phox homology (PX) domain protein [Intracellular trafficking and secretion / General function ... |
9-361 | 2.03e-03 | ||||||
Phox homology (PX) domain protein [Intracellular trafficking and secretion / General function prediction only]; Pssm-ID: 227680 [Multi-domain] Cd Length: 524 Bit Score: 40.17 E-value: 2.03e-03
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| Name | Accession | Description | Interval | E-value | ||||||
| BAR_SNX5_6 | cd07621 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 5 and 6; BAR domains are dimerization, ... |
160-378 | 5.25e-107 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 5 and 6; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. Members of this subfamily include SNX5, SNX6, the mammalian SNX32, and similar proteins. SNX5 and SNX6 may be components of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. The function of SNX32 is still unknown. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153305 Cd Length: 219 Bit Score: 313.50 E-value: 5.25e-107
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| PX_SNX5_like | cd06892 | The phosphoinositide binding Phox Homology domain of Sorting Nexins 5 and 6; The PX domain is ... |
5-144 | 4.87e-79 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexins 5 and 6; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. Members of this subfamily include SNX5, SNX6, and similar proteins. They contain a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain, similar to other sorting nexins including SNX1-2. The PX-BAR structural unit helps determine the specific membrane-targeting of some SNXs. SNX5 and SNX6 may be components of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. Pssm-ID: 132802 Cd Length: 141 Bit Score: 239.26 E-value: 4.87e-79
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| PX_SNX5 | cd07291 | The phosphoinositide binding Phox Homology domain of Sorting Nexin 5; The PX domain is a ... |
9-144 | 1.78e-70 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexin 5; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. SNX5, abundantly expressed in macrophages, regulates macropinocytosis, a process that enables cells to internalize large amounts of external solutes. It may also be a component of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. It also binds the Fanconi anaemia complementation group A protein (FANCA). SNX5 harbors a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain, similar to other sorting nexins including SNX1-2. The PX-BAR structural unit helps determine the specific membrane-targeting of some SNXs. The PX domain of SNX5 binds phosphatidylinositol-3-phosphate (PI3P) and PI(3,4)P2. SNX5 is localized to a subdomain of early endosome and is recruited to the plasma membrane following EGF stimulation and elevation of PI(3,4)P2 levels. Pssm-ID: 132824 Cd Length: 141 Bit Score: 217.24 E-value: 1.78e-70
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| PX_SNX6 | cd07292 | The phosphoinositide binding Phox Homology domain of Sorting Nexin 6; The PX domain is a ... |
6-143 | 9.30e-61 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexin 6; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. SNX6 forms a stable complex with SNX1 and may be a component of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. It interacts with the receptor serine/threonine kinases from the transforming growth factor-beta family. It also plays roles in enhancing the degradation of EGFR and in regulating the activity of Na,K-ATPase through its interaction with Translationally Controlled Tumor Protein (TCTP). SNX6 harbors a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain, similar to other sorting nexins including SNX1-2. The PX-BAR structural unit helps determine the specific membrane-targeting of some SNXs. Pssm-ID: 132825 Cd Length: 141 Bit Score: 192.62 E-value: 9.30e-61
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| BAR_SNX5 | cd07663 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexin 5; BAR domains are dimerization, lipid ... |
161-378 | 1.08e-57 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexin 5; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. SNX5, abundantly expressed in macrophages, regulates macropinocytosis, a process that enables cells to internalize large amounts of external solutes. It may also be a component of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. It also binds the Fanconi anaemia complementation group A protein (FANCA). SNX5 is localized to a subdomain of early endosome and is recruited to the plasma membrane following EGF stimulation and elevation of PI(3,4)P2 levels. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153347 Cd Length: 218 Bit Score: 187.45 E-value: 1.08e-57
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| BAR_SNX6 | cd07662 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexin 6; BAR domains are dimerization, lipid ... |
161-378 | 1.11e-56 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexin 6; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. SNX6 forms a stable complex with SNX1 and may be a component of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, acting as a mammalian equivalent of yeast Vsp17p. It interacts with the receptor serine/threonine kinases from the transforming growth factor-beta family. It also plays roles in enhancing the degradation of EGFR and in regulating the activity of Na,K-ATPase through its interaction with Translationally Controlled Tumor Protein (TCTP). BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153346 Cd Length: 218 Bit Score: 184.86 E-value: 1.11e-56
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| BAR_SNX_like | cd07630 | The Bin/Amphiphysin/Rvs (BAR) domain of uncharacterized Sorting Nexins; BAR domains are ... |
179-376 | 1.22e-24 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of uncharacterized Sorting Nexins; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. This subfamily is composed of uncharacterized proteins with similarity to sorting nexins (SNXs), which are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153314 Cd Length: 198 Bit Score: 99.89 E-value: 1.22e-24
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| BAR_SNX | cd07596 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins; BAR domains are dimerization, lipid ... |
179-375 | 1.58e-23 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153280 [Multi-domain] Cd Length: 218 Bit Score: 97.04 E-value: 1.58e-23
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| PX_SNX1_2_like | cd06859 | The phosphoinositide binding Phox Homology domain of Sorting Nexins 1 and 2; The PX domain is ... |
21-144 | 1.25e-18 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexins 1 and 2; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. This subfamily consists of SNX1, SNX2, and similar proteins. They harbor a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain. Both domains have been shown to determine the specific membrane-targeting of SNX1. SNX1 and SNX2 are components of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi. The retromer consists of a cargo-recognition subcomplex and a subcomplex formed by a dimer of sorting nexins (SNX1 and/or SNX2), which ensures effcient cargo sorting by facilitating proper membrane localization of the cargo-recognition subcomplex. Pssm-ID: 132769 [Multi-domain] Cd Length: 114 Bit Score: 80.70 E-value: 1.25e-18
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| Vps5 | pfam09325 | Vps5 C terminal like; Vps5 is a sorting nexin that functions in membrane trafficking. This is ... |
178-369 | 1.30e-13 | ||||||
Vps5 C terminal like; Vps5 is a sorting nexin that functions in membrane trafficking. This is the C terminal dimerization domain. Pssm-ID: 430527 [Multi-domain] Cd Length: 236 Bit Score: 69.62 E-value: 1.30e-13
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| PX_Vps5p | cd06861 | The phosphoinositide binding Phox Homology domain of yeast sorting nexin Vps5p; The PX domain ... |
21-144 | 1.64e-12 | ||||||
The phosphoinositide binding Phox Homology domain of yeast sorting nexin Vps5p; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. Vsp5p is the yeast counterpart of human SNX1 and is part of the retromer complex, which functions in the endosome-to-Golgi retrieval of vacuolar protein sorting receptor Vps10p, the Golgi-resident membrane protein A-ALP, and endopeptidase Kex2. The PX domain of Vps5p binds phosphatidylinositol-3-phosphate (PI3P). Similar to SNX1, Vps5p contains a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain. Both domains have been shown to determine the specific membrane-targeting of SNX1. Pssm-ID: 132771 Cd Length: 112 Bit Score: 63.53 E-value: 1.64e-12
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| BAR_Vps5p | cd07627 | The Bin/Amphiphysin/Rvs (BAR) domain of yeast Sorting Nexin Vps5p; BAR domains are ... |
181-352 | 9.37e-11 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of yeast Sorting Nexin Vps5p; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. Vsp5p is the yeast counterpart of human SNX1 and is part of the retromer complex, which functions in the endosome-to-Golgi retrieval of vacuolar protein sorting receptor Vps10p, the Golgi-resident membrane protein A-ALP, and endopeptidase Kex2. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153311 [Multi-domain] Cd Length: 216 Bit Score: 61.17 E-value: 9.37e-11
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| PX_SNX7_30_like | cd06860 | The phosphoinositide binding Phox Homology domain of Sorting Nexins 7 and 30; The PX domain is ... |
21-141 | 4.41e-10 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexins 7 and 30; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. Some SNXs are localized in early endosome structures such as clathrin-coated pits, while others are located in late structures of the endocytic pathway. This subfamily consists of SNX7, SNX30, and similar proteins. They harbor a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain, similar to the sorting nexins SNX1-2, SNX4-6, SNX8, and SNX32. Both domains have been shown to determine the specific membrane-targeting of SNX1. The specific function of the sorting nexins in this subfamily has yet to be elucidated. Pssm-ID: 132770 Cd Length: 116 Bit Score: 56.58 E-value: 4.41e-10
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| BAR_SNX1_2 | cd07623 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 1 and 2; BAR domains are dimerization, ... |
181-364 | 1.02e-09 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 1 and 2; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. This subfamily consists of SNX1, SNX2, and similar proteins. SNX1 and SNX2 are components of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi. The retromer consists of a cargo-recognition subcomplex and a subcomplex formed by a dimer of sorting nexins (SNX1 and/or SNX2), which ensures efficient cargo sorting by facilitating proper membrane localization of the cargo-recognition subcomplex. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153307 Cd Length: 224 Bit Score: 58.05 E-value: 1.02e-09
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| PX | pfam00787 | PX domain; PX domains bind to phosphoinositides. |
40-144 | 1.29e-09 | ||||||
PX domain; PX domains bind to phosphoinositides. Pssm-ID: 459940 Cd Length: 84 Bit Score: 54.55 E-value: 1.29e-09
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| PX_SNX2 | cd07282 | The phosphoinositide binding Phox Homology domain of Sorting Nexin 2; The PX domain is a ... |
11-142 | 4.26e-09 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexin 2; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. SNX2 is a component of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi. The retromer consists of a cargo-recognition subcomplex and a subcomplex formed by a dimer of sorting nexins (SNX1 and/or SNX2), which ensures efficient cargo sorting by facilitating proper membrane localization of the cargo-recognition subcomplex. Similar to SNX1, SNX2 contains a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain. The PX domain of SNX2 preferentially binds phosphatidylinositol-3-phosphate (PI3P), but not PI(3,4,5)P3. Studies on mice deficient with SNX1 and/or SNX2 suggest that they provide an essential function in embryogenesis and are functionally redundant. Pssm-ID: 132815 Cd Length: 124 Bit Score: 54.29 E-value: 4.26e-09
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| PX_SNX1 | cd07281 | The phosphoinositide binding Phox Homology domain of Sorting Nexin 1; The PX domain is a ... |
21-144 | 7.31e-09 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexin 1; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. SNX1 is both membrane associated and a cytosolic protein that exists as a tetramer in protein complexes. It can associate reversibly with membranes of the endosomal compartment, thereby coating these vesicles. SNX1 is a component of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi. The retromer consists of a cargo-recognition subcomplex and a subcomplex formed by a dimer of sorting nexins (SNX1 and/or SNX2), which ensures efficient cargo sorting by facilitating proper membrane localization of the cargo-recognition subcomplex. SNX1 contains a Bin/Amphiphysin/Rvs (BAR) domain C-terminal to the PX domain. The PX domain of SNX1 specifically binds phosphatidylinositol-3-phosphate (PI3P) and PI(3,5)P2, while the BAR domain detects membrane curvature. Both domains help determine the specific membrane-targeting of SNX1, which is localized to a microdomain in early endosomes where it regulates cation-independent mannose-6-phosphate receptor retrieval to the trans Golgi network. Pssm-ID: 132814 Cd Length: 124 Bit Score: 53.52 E-value: 7.31e-09
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| PX_SNX7 | cd07284 | The phosphoinositide binding Phox Homology domain of Sorting Nexin 7; The PX domain is a ... |
21-141 | 1.64e-07 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexin 7; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. Some SNXs are localized in early endosome structures such as clathrin-coated pits, while others are located in late structures of the endocytic pathway. SNX7 harbors a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain, similar to the sorting nexins SNX1-2, SNX4-6, SNX8, SNX30, and SNX32. Both domains have been shown to determine the specific membrane-targeting of SNX1. The specific function of SNX7 has yet to be elucidated. Pssm-ID: 132817 Cd Length: 116 Bit Score: 49.59 E-value: 1.64e-07
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| PX_domain | cd06093 | The Phox Homology domain, a phosphoinositide binding module; The PX domain is a ... |
16-142 | 8.45e-07 | ||||||
The Phox Homology domain, a phosphoinositide binding module; The PX domain is a phosphoinositide (PI) binding module involved in targeting proteins to membranes. Proteins containing PX domains interact with PIs and have been implicated in highly diverse functions such as cell signaling, vesicular trafficking, protein sorting, lipid modification, cell polarity and division, activation of T and B cells, and cell survival. Many members of this superfamily bind phosphatidylinositol-3-phosphate (PI3P) but in some cases, other PIs such as PI4P or PI(3,4)P2, among others, are the preferred substrates. In addition to protein-lipid interaction, the PX domain may also be involved in protein-protein interaction, as in the cases of p40phox, p47phox, and some sorting nexins (SNXs). The PX domain is conserved from yeast to humans and is found in more than 100 proteins. The majority of PX domain-containing proteins are SNXs, which play important roles in endosomal sorting. Pssm-ID: 132768 [Multi-domain] Cd Length: 106 Bit Score: 46.97 E-value: 8.45e-07
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| PX_SNX_like | cd06865 | The phosphoinositide binding Phox Homology domain of SNX-like proteins; The PX domain is a ... |
23-144 | 1.10e-06 | ||||||
The phosphoinositide binding Phox Homology domain of SNX-like proteins; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. Some SNXs are localized in early endosome structures such as clathrin-coated pits, while others are located in late structures of the endocytic pathway. This subfamily is composed of uncharacterized proteins, predominantly from plants, with similarity to sorting nexins. A few members show a similar domain architecture as a subfamily of sorting nexins, containing a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain. The PX-BAR structural unit is known to determine specific membrane localization. Pssm-ID: 132775 Cd Length: 120 Bit Score: 47.03 E-value: 1.10e-06
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| BAR_SNX2 | cd07664 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexin 2; BAR domains are dimerization, lipid ... |
179-349 | 1.95e-06 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexin 2; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. SNX2 is a component of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi. The retromer consists of a cargo-recognition subcomplex and a subcomplex formed by a dimer of sorting nexins (SNX1 and/or SNX2), which ensures effcient cargo sorting by facilitating proper membrane localization of the cargo-recognition subcomplex. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153348 [Multi-domain] Cd Length: 234 Bit Score: 48.51 E-value: 1.95e-06
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| PX_SNX4 | cd06864 | The phosphoinositide binding Phox Homology domain of Sorting Nexin 4; The PX domain is a ... |
23-144 | 3.58e-05 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexin 4; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. SNX4 is involved in recycling traffic from the sorting endosome (post-Golgi endosome) back to the late Golgi. It shows a similar domain architecture as SNX1-2, among others, containing a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain. SNX4 is implicated in the regulation of plasma membrane receptor trafficking and interacts with receptors for EGF, insulin, platelet-derived growth factor and the long form of the leptin receptor. Pssm-ID: 132774 Cd Length: 129 Bit Score: 43.13 E-value: 3.58e-05
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| PX_SNX3 | cd07293 | The phosphoinositide binding Phox Homology domain of Sorting Nexin 3; The PX domain is a ... |
23-144 | 2.71e-04 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexin 3; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. SNX3 associates with early endosomes through a PX domain-mediated interaction with phosphatidylinositol-3-phosphate (PI3P). It associates with the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi, and functions as a cargo-specific adaptor for the retromer. SNX3 is required for the formation of multivesicular bodies, which function as transport intermediates to late endosomes. It also promotes cell surface expression of the amiloride-sensitive epithelial Na+ channel (ENaC), which is critical in sodium homeostasis and maintenance of extracellular fluid volume. Pssm-ID: 132826 Cd Length: 123 Bit Score: 40.36 E-value: 2.71e-04
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| PX_SNX12 | cd07294 | The phosphoinositide binding Phox Homology domain of Sorting Nexin 12; The PX domain is a ... |
23-144 | 2.73e-04 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexin 12; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. Some SNXs are localized in early endosome structures such as clathrin-coated pits, while others are located in late structures of the endocytic pathway. The specific function of SNX12 has yet to be elucidated. Pssm-ID: 132827 Cd Length: 132 Bit Score: 40.41 E-value: 2.73e-04
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| BAR_Amphiphysin | cd07588 | The Bin/Amphiphysin/Rvs (BAR) domain of Amphiphysins; BAR domains are dimerization, lipid ... |
244-377 | 5.63e-04 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Amphiphysins; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Amphiphysins function primarily in endocytosis and other membrane remodeling events. They contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. This subfamily is composed of different isoforms of amphiphysin and Bridging integrator 2 (Bin2). Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin and synaptojanin. They function in synaptic vesicle endocytosis. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. Bin2 is mainly expressed in hematopoietic cells and is upregulated during granulocyte differentiation. The N-BAR domains of amphiphysins form a curved dimer with a positively-charged concave face that can drive membrane bending and curvature. Pssm-ID: 153272 Cd Length: 211 Bit Score: 40.80 E-value: 5.63e-04
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| PX_SNX30 | cd07283 | The phosphoinositide binding Phox Homology domain of Sorting Nexin 30; The PX domain is a ... |
21-141 | 7.76e-04 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexin 30; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. Some SNXs are localized in early endosome structures such as clathrin-coated pits, while others are located in late structures of the endocytic pathway. SNX30 harbors a Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane curvature, C-terminal to the PX domain, similar to the sorting nexins SNX1-2, SNX4-8, and SNX32. Both domains have been shown to determine the specific membrane-targeting of SNX1. The specific function of SNX30 has yet to be elucidated. Pssm-ID: 132816 Cd Length: 116 Bit Score: 38.91 E-value: 7.76e-04
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| PX | smart00312 | PhoX homologous domain, present in p47phox and p40phox; Eukaryotic domain of unknown function ... |
23-142 | 1.01e-03 | ||||||
PhoX homologous domain, present in p47phox and p40phox; Eukaryotic domain of unknown function present in phox proteins, PLD isoforms, a PI3K isoform. Pssm-ID: 214610 Cd Length: 105 Bit Score: 38.09 E-value: 1.01e-03
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| COG5391 | COG5391 | Phox homology (PX) domain protein [Intracellular trafficking and secretion / General function ... |
9-361 | 2.03e-03 | ||||||
Phox homology (PX) domain protein [Intracellular trafficking and secretion / General function prediction only]; Pssm-ID: 227680 [Multi-domain] Cd Length: 524 Bit Score: 40.17 E-value: 2.03e-03
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| BAR_SNX1 | cd07665 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexin 1; BAR domains are dimerization, lipid ... |
163-357 | 2.05e-03 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexin 1; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. SNX1 is a component of the retromer complex, a membrane coat multimeric complex required for endosomal retrieval of lysosomal hydrolase receptors to the Golgi. The retromer consists of a cargo-recognition subcomplex and a subcomplex formed by a dimer of sorting nexins (SNX1 and/or SNX2), which ensures effcient cargo sorting by facilitating proper membrane localization of the cargo-recognition subcomplex. SNX1 is localized to a microdomain in early endosomes where it regulates cation-independent mannose-6-phosphate receptor retrieval to the trans Golgi network. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153349 [Multi-domain] Cd Length: 234 Bit Score: 39.28 E-value: 2.05e-03
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| PX_SNX9_18_like | cd06862 | The phosphoinositide binding Phox Homology domain of Sorting Nexins 9 and 18; The PX domain is ... |
36-159 | 2.84e-03 | ||||||
The phosphoinositide binding Phox Homology domain of Sorting Nexins 9 and 18; The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds PIs and targets the protein to PI-enriched membranes. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway. This subfamily consists of SNX9, SNX18, and similar proteins. They contain an N-terminal Src Homology 3 (SH3) domain, a PX domain, and a C-terminal Bin/Amphiphysin/Rvs (BAR) domain. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. Pssm-ID: 132772 Cd Length: 125 Bit Score: 37.30 E-value: 2.84e-03
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| BAR_Amphiphysin_I_II | cd07611 | The Bin/Amphiphysin/Rvs (BAR) domain of Amphiphysin I and II; BAR domains are dimerization, ... |
282-370 | 8.05e-03 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Amphiphysin I and II; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Amphiphysins function primarily in endocytosis and other membrane remodeling events. They contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin and synaptojanin. They function in synaptic vesicle endocytosis. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. The N-BAR domain of amphiphysin forms a curved dimer with a positively-charged concave face that can drive membrane bending and curvature. Human autoantibodies to amphiphysin-1 hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Mutations in amphiphysin-2 (BIN1) are associated with autosomal recessive centronuclear myopathy. Pssm-ID: 153295 Cd Length: 211 Bit Score: 37.22 E-value: 8.05e-03
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| BAR_SNX7_30 | cd07624 | The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 7 and 30; BAR domains are dimerization, ... |
178-362 | 9.65e-03 | ||||||
The Bin/Amphiphysin/Rvs (BAR) domain of Sorting Nexins 7 and 30; BAR domains are dimerization, lipid binding and curvature sensing modules found in many different proteins with diverse functions. Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. A subset of SNXs also contain BAR domains. The PX-BAR structural unit determines the specific membrane targeting of SNXs. This subfamily consists of SNX7, SNX30, and similar proteins. The specific functions of SNX7 and SNX30 have not been elucidated. BAR domains form dimers that bind to membranes, induce membrane bending and curvature, and may also be involved in protein-protein interactions. Pssm-ID: 153308 Cd Length: 200 Bit Score: 36.97 E-value: 9.65e-03
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