Rho GTPase activating protein at 1A, isoform C [Drosophila melanogaster]
RhoGEF family protein; PH domain-containing RhoGEF family protein( domain architecture ID 11264325)
RhoGEF (rho guanine nucleotide exchange factor) family protein similar to RhoGEF and PH (pleckstrin homology) domain regions of Drosophila melanogaster RhoGAP1A| PH domain-containing RhoGEF family protein may function as a guanine nucleotide exchange factor; similar to Homo sapiens pleckstrin homology domain-containing family G member 4B and Danio rerio quattro
List of domain hits
Name | Accession | Description | Interval | E-value | ||||
PH_BCR_arthropod | cd13368 | Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the ... |
542-728 | 9.90e-99 | ||||
Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the two genes in the BCR-ABL complex, which is associated with the Philadelphia chromosome, a product of a reciprocal translocation between chromosomes 22 and 9. BCR is a GTPase-activating protein (GAP) for RAC1 (primarily) and CDC42. The Dbl region of BCR has the most RhoGEF activity for Cdc42, and less activity towards Rac and Rho. Since BCR possesses both GAP and GEF activities, it may function to temporally regulate the activity of these GTPases. It also displays serine/threonine kinase activity. The BCR protein contains multiple domains including an N-terminal kinase domain, a RhoGEF domain, a PH domain, a C1 domain, a C2 domain, and a C-terminal RhoGAP domain. This hierarchy is composed of arthropod BCRs. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes. : Pssm-ID: 270174 Cd Length: 180 Bit Score: 305.99 E-value: 9.90e-99
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RhoGEF | smart00325 | Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange ... |
366-548 | 7.89e-40 | ||||
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains. Improved coverage. : Pssm-ID: 214619 [Multi-domain] Cd Length: 180 Bit Score: 145.14 E-value: 7.89e-40
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C2 super family | cl14603 | C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed ... |
770-878 | 2.97e-21 | ||||
C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. The actual alignment was detected with superfamily member cd08686: Pssm-ID: 472691 Cd Length: 118 Bit Score: 89.87 E-value: 2.97e-21
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Name | Accession | Description | Interval | E-value | ||||
PH_BCR_arthropod | cd13368 | Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the ... |
542-728 | 9.90e-99 | ||||
Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the two genes in the BCR-ABL complex, which is associated with the Philadelphia chromosome, a product of a reciprocal translocation between chromosomes 22 and 9. BCR is a GTPase-activating protein (GAP) for RAC1 (primarily) and CDC42. The Dbl region of BCR has the most RhoGEF activity for Cdc42, and less activity towards Rac and Rho. Since BCR possesses both GAP and GEF activities, it may function to temporally regulate the activity of these GTPases. It also displays serine/threonine kinase activity. The BCR protein contains multiple domains including an N-terminal kinase domain, a RhoGEF domain, a PH domain, a C1 domain, a C2 domain, and a C-terminal RhoGAP domain. This hierarchy is composed of arthropod BCRs. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes. Pssm-ID: 270174 Cd Length: 180 Bit Score: 305.99 E-value: 9.90e-99
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RhoGEF | smart00325 | Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange ... |
366-548 | 7.89e-40 | ||||
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains. Improved coverage. Pssm-ID: 214619 [Multi-domain] Cd Length: 180 Bit Score: 145.14 E-value: 7.89e-40
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RhoGEF | pfam00621 | RhoGEF domain; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called ... |
366-548 | 6.48e-28 | ||||
RhoGEF domain; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called Dbl-homologous (DH) domain. It appears that pfam00169 domains invariably occur C-terminal to RhoGEF/DH domains. Pssm-ID: 459876 [Multi-domain] Cd Length: 176 Bit Score: 110.85 E-value: 6.48e-28
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RhoGEF | cd00160 | Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous ... |
366-548 | 2.64e-27 | ||||
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains. Pssm-ID: 238091 [Multi-domain] Cd Length: 181 Bit Score: 109.31 E-value: 2.64e-27
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C2_ABR | cd08686 | C2 domain in the Active BCR (Breakpoint cluster region) Related protein; The ABR protein is ... |
770-878 | 2.97e-21 | ||||
C2 domain in the Active BCR (Breakpoint cluster region) Related protein; The ABR protein is similar to the breakpoint cluster region protein. It has homology to guanine nucleotide exchange proteins and GTPase-activating proteins (GAPs). ABR is expressed primarily in the brain, but also includes non-neuronal tissues such as the heart. It has been associated with human diseases such as Miller-Dieker syndrome in which mental retardation and malformations of the heart are present. ABR contains a RhoGEF domain and a PH-like domain upstream of its C2 domain and a RhoGAP domain downstream of this domain. A few members also contain a Bcr-Abl oncoprotein oligomerization domain at the very N-terminal end. Splice variants of ABR have been identified. ABR is found in a wide variety of organisms including chimpanzee, dog, mouse, rat, fruit fly, and mosquito. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Pssm-ID: 176068 Cd Length: 118 Bit Score: 89.87 E-value: 2.97e-21
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PH_19 | pfam19057 | PH domain; This entry contains a PH domain found in RhoGEF proteins. |
563-621 | 1.39e-04 | ||||
PH domain; This entry contains a PH domain found in RhoGEF proteins. Pssm-ID: 465965 Cd Length: 151 Bit Score: 43.21 E-value: 1.39e-04
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Name | Accession | Description | Interval | E-value | ||||
PH_BCR_arthropod | cd13368 | Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the ... |
542-728 | 9.90e-99 | ||||
Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the two genes in the BCR-ABL complex, which is associated with the Philadelphia chromosome, a product of a reciprocal translocation between chromosomes 22 and 9. BCR is a GTPase-activating protein (GAP) for RAC1 (primarily) and CDC42. The Dbl region of BCR has the most RhoGEF activity for Cdc42, and less activity towards Rac and Rho. Since BCR possesses both GAP and GEF activities, it may function to temporally regulate the activity of these GTPases. It also displays serine/threonine kinase activity. The BCR protein contains multiple domains including an N-terminal kinase domain, a RhoGEF domain, a PH domain, a C1 domain, a C2 domain, and a C-terminal RhoGAP domain. This hierarchy is composed of arthropod BCRs. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes. Pssm-ID: 270174 Cd Length: 180 Bit Score: 305.99 E-value: 9.90e-99
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PH_BCR-related | cd01228 | Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the ... |
563-723 | 1.06e-53 | ||||
Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the two genes in the BCR-ABL complex, which is associated with the Philadelphia chromosome, a product of a reciprocal translocation between chromosomes 22 and 9. BCR is a GTPase-activating protein (GAP) for RAC1 (primarily) and CDC42. The Dbl region of BCR has the most RhoGEF activity for Cdc42, and less activity towards Rac and Rho. Since BCR possesses both GAP and GEF activities, it may function to temporally regulate the activity of these GTPases. It also displays serine/threonine kinase activity. The BCR protein contains multiple domains including an N-terminal kinase domain, a RhoGEF domain, a PH domain, a C1 domain, a C2 domain, and a C-terminal RhoGAP domain. ABR, a related smaller protein, is structurally similar to BCR, but lacks the N-terminal kinase domain and has GAP activity for both Rac and Cdc42. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes. Pssm-ID: 269935 Cd Length: 166 Bit Score: 184.09 E-value: 1.06e-53
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RhoGEF | smart00325 | Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange ... |
366-548 | 7.89e-40 | ||||
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains. Improved coverage. Pssm-ID: 214619 [Multi-domain] Cd Length: 180 Bit Score: 145.14 E-value: 7.89e-40
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PH_ABR | cd13366 | Active breakpoint cluster region-related protein pleckstrin homology (PH) domain; The ABR ... |
563-723 | 5.06e-34 | ||||
Active breakpoint cluster region-related protein pleckstrin homology (PH) domain; The ABR protein contains multiple domains including a RhoGEF domain, a PH domain, a C1 domain, a C2 domain, and a C-terminal RhoGAP domain. It is related to a slightly larger protein, BCR, which is structurally similar, but has an additional N-terminal kinase domain. ABR has GAP activity for both Rac and Cdc42. It promotes the exchange of RAC or CDC42-bound GDP by GTP, thereby activating them. It is highly enriched in the brain and found to a lesser extent in heart, lung and muscle. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes. Pssm-ID: 270172 Cd Length: 185 Bit Score: 128.97 E-value: 5.06e-34
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PH_BCR_vertebrate | cd13367 | Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the ... |
563-724 | 9.37e-30 | ||||
Breakpoint Cluster Region-related pleckstrin homology (PH) domain; The BCR gene is one of the two genes in the BCR-ABL complex, which is associated with the Philadelphia chromosome, a product of a reciprocal translocation between chromosomes 22 and 9. BCR is a GTPase-activating protein (GAP) for RAC1 (primarily) and CDC42. The Dbl region of BCR has the most RhoGEF activity for Cdc42, and less activity towards Rac and Rho. Since BCR possesses both GAP and GEF activities, it may function to temporally regulate the activity of these GTPases. It also displays serine/threonine kinase activity. The BCR protein contains multiple domains including an N-terminal kinase domain, a RhoGEF domain, a PH domain, a C1 domain, a C2 domain, and a C-terminal RhoGAP domain. This hierarchy is composed of vertebrate BCRs. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes. Pssm-ID: 270173 Cd Length: 194 Bit Score: 117.03 E-value: 9.37e-30
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RhoGEF | pfam00621 | RhoGEF domain; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called ... |
366-548 | 6.48e-28 | ||||
RhoGEF domain; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called Dbl-homologous (DH) domain. It appears that pfam00169 domains invariably occur C-terminal to RhoGEF/DH domains. Pssm-ID: 459876 [Multi-domain] Cd Length: 176 Bit Score: 110.85 E-value: 6.48e-28
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RhoGEF | cd00160 | Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous ... |
366-548 | 2.64e-27 | ||||
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains. Pssm-ID: 238091 [Multi-domain] Cd Length: 181 Bit Score: 109.31 E-value: 2.64e-27
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C2_ABR | cd08686 | C2 domain in the Active BCR (Breakpoint cluster region) Related protein; The ABR protein is ... |
770-878 | 2.97e-21 | ||||
C2 domain in the Active BCR (Breakpoint cluster region) Related protein; The ABR protein is similar to the breakpoint cluster region protein. It has homology to guanine nucleotide exchange proteins and GTPase-activating proteins (GAPs). ABR is expressed primarily in the brain, but also includes non-neuronal tissues such as the heart. It has been associated with human diseases such as Miller-Dieker syndrome in which mental retardation and malformations of the heart are present. ABR contains a RhoGEF domain and a PH-like domain upstream of its C2 domain and a RhoGAP domain downstream of this domain. A few members also contain a Bcr-Abl oncoprotein oligomerization domain at the very N-terminal end. Splice variants of ABR have been identified. ABR is found in a wide variety of organisms including chimpanzee, dog, mouse, rat, fruit fly, and mosquito. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Pssm-ID: 176068 Cd Length: 118 Bit Score: 89.87 E-value: 2.97e-21
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PH_unc89 | cd13325 | unc89 pleckstrin homology (PH) domain; unc89 is a myofibrillar protein. unc89-B the largest ... |
562-649 | 1.43e-05 | ||||
unc89 pleckstrin homology (PH) domain; unc89 is a myofibrillar protein. unc89-B the largest isoform is composed of 53 immunoglobulin (Ig) domains, 2 Fn3 domains, a triplet of SH3, DH and PH domains at its N-terminus, and 2 protein kinase domains (PK1 and PK2) at its C-terminus. unc-89 mutants display disorganization of muscle A-bands, and usually lack M-lines. The COOH-terminal region of obscurin, the human homolog of unc89, interacts via two specific Ig-like domains with the NH(2)-terminal Z-disk region of titin, a protein that connects the Z line to the M line in the sarcomere and contributes to the contraction of striated muscle. obscurin is also thought to be involved in Ca2+/calmodulin via its IQ domains, as well as G protein-coupled signal transduction in the sarcomere via its RhoGEF/DH domain. The DH-PH region of OBSCN and unc89, the C. elegans homolog, has exchange activity for RhoA and Rho-1 respectively, but not for the small GTPases homologous to Cdc42 or Rac. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes. Pssm-ID: 270134 Cd Length: 114 Bit Score: 45.03 E-value: 1.43e-05
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PH_19 | pfam19057 | PH domain; This entry contains a PH domain found in RhoGEF proteins. |
563-621 | 1.39e-04 | ||||
PH domain; This entry contains a PH domain found in RhoGEF proteins. Pssm-ID: 465965 Cd Length: 151 Bit Score: 43.21 E-value: 1.39e-04
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PH_RARhoGAP | cd13319 | RA and RhoGAP domain-containing protein Pleckstrin homology PH domain; RARhoGAP (also called ... |
572-634 | 4.80e-04 | ||||
RA and RhoGAP domain-containing protein Pleckstrin homology PH domain; RARhoGAP (also called Rho GTPase-activating protein 20 and ARHGAP20 ) is thought to function in rearrangements of the cytoskeleton and cell signaling events that occur during spermatogenesis. RARhoGAP was also shown to be activated by Rap1 and to induce inactivation of Rho, resulting in the neurite outgrowth. Recent findings show that ARHGAP20, even although it is located in the middle of the MDR on 11q22-23, is expressed at higher levels in chronic lymphocytic leukemia patients with 11q22-23 and/or 13q14 deletions and its expression pattern suggests a functional link between cases with 11q22-23 and 13q14 deletions. The mechanism needs to be further studied. RARhoGAP contains a PH domain, a Ras-associating domain, a Rho-GAP domain, and ANXL repeats. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes. Pssm-ID: 270129 Cd Length: 97 Bit Score: 40.30 E-value: 4.80e-04
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Blast search parameters | ||||
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