RecName: Full=Rab effector MyRIP; AltName: Full=Exophilin-8; AltName: Full=Myosin-VIIa- and Rab-interacting protein; AltName: Full=Synaptotagmin-like protein lacking C2 domains C; Short=SlaC2-c; Short=Slp homolog lacking C2 domains c
Protein Classification
melanophilin; FYVE zinc finger domain-containing protein( domain architecture ID 10491889)
melanophilin acts as a Rab effector protein that is involved in melanosome transport and serves as link between melanosome-bound RAB27A and the motor protein MYO5A; FYVE (Fab1, YOTB, Vac1, and EEA1) zinc finger domain-containing protein binds phosphoinositide 3-kinase product PtdIns 3-phosphate (PtdIns(3)P); similar to Homo sapiens zinc finger FYVE domain-containing protein 1 isoform 2
List of domain hits
| Name | Accession | Description | Interval | E-value | ||||||||||
| Rab_eff_C | pfam04698 | Rab effector MyRIP/melanophilin C-terminus; This domain is found at the C-terminus of the Rab ... |
152-859 | 0e+00 | ||||||||||
Rab effector MyRIP/melanophilin C-terminus; This domain is found at the C-terminus of the Rab effector proteins MyRIP and melanophilin. : Pssm-ID: 461398 [Multi-domain] Cd Length: 717 Bit Score: 1240.14 E-value: 0e+00
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| FYVE_2 | pfam02318 | FYVE-type zinc finger; This FYVE-type zinc finger is found at the N-terminus of effector ... |
8-125 | 6.46e-64 | ||||||||||
FYVE-type zinc finger; This FYVE-type zinc finger is found at the N-terminus of effector proteins including rabphilin-3A and regulating synaptic membrane exocytosis protein 2. : Pssm-ID: 426716 Cd Length: 118 Bit Score: 209.92 E-value: 6.46e-64
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| Name | Accession | Description | Interval | E-value | ||||||||||
| Rab_eff_C | pfam04698 | Rab effector MyRIP/melanophilin C-terminus; This domain is found at the C-terminus of the Rab ... |
152-859 | 0e+00 | ||||||||||
Rab effector MyRIP/melanophilin C-terminus; This domain is found at the C-terminus of the Rab effector proteins MyRIP and melanophilin. Pssm-ID: 461398 [Multi-domain] Cd Length: 717 Bit Score: 1240.14 E-value: 0e+00
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| FYVE_2 | pfam02318 | FYVE-type zinc finger; This FYVE-type zinc finger is found at the N-terminus of effector ... |
8-125 | 6.46e-64 | ||||||||||
FYVE-type zinc finger; This FYVE-type zinc finger is found at the N-terminus of effector proteins including rabphilin-3A and regulating synaptic membrane exocytosis protein 2. Pssm-ID: 426716 Cd Length: 118 Bit Score: 209.92 E-value: 6.46e-64
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| FYVE_SlaC2-a | cd15752 | FYVE-related domain found in Slp homolog lacking C2 domains a (SlaC2-a) and similar proteins; ... |
64-137 | 1.60e-29 | ||||||||||
FYVE-related domain found in Slp homolog lacking C2 domains a (SlaC2-a) and similar proteins; SlaC2-a, also termed melanophilin, or exophilin-3, is a GTP-bound form of Rab27A-, myosin Va-, and actin-binding protein present on melanosomes. It is involved in the control of transferring of melanosomes from microtubules to actin filaments. It also functions as a melanocyte type myosin Va (McM5) binding partner and directly activates the actin-activated ATPase activity of McM5 through forming a tripartite protein complex with Rab27A and an actin-based motor myosin Va. SlaC2-a belongs to the Slp homolog lacking C2 domains (Slac2) family. It contains an N-terminal Slp homology domain (SHD), but lacks tandem C2 domains. The SHD consists of two conserved regions, designated SHD1 (Slp homology domain 1) and SHD2, which may function as protein interaction sites. The SHD1 and SHD2 of SlaC2-a are separated by a putative FYVE zinc finger, which resembles a FYVE-related domain that is structurally similar to the canonical FYVE domains but lacks the three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif. Moreover, Slac2-a has a middle myosin-binding domain and a C-terminal actin-binding domain. Pssm-ID: 277291 Cd Length: 76 Bit Score: 111.81 E-value: 1.60e-29
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| FYVE | smart00064 | Protein present in Fab1, YOTB, Vac1, and EEA1; The FYVE zinc finger is named after four ... |
62-107 | 5.91e-04 | ||||||||||
Protein present in Fab1, YOTB, Vac1, and EEA1; The FYVE zinc finger is named after four proteins where it was first found: Fab1, YOTB/ZK632.12, Vac1, and EEA1. The FYVE finger has been shown to bind two Zn2+ ions. The FYVE finger has eight potential zinc coordinating cysteine positions. The FYVE finger is structurally related to the PHD finger and the RING finger. Many members of this family also include two histidines in a motif R+HHC+XCG, where + represents a charged residue and X any residue. The FYVE finger functions in the membrane recruitment of cytosolic proteins by binding to phosphatidylinositol 3-phosphate (PI3P), which is prominent on endosomes. The R+HHC+XCG motif is critical for PI3P binding. Pssm-ID: 214499 [Multi-domain] Cd Length: 68 Bit Score: 38.95 E-value: 5.91e-04
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| PHA03247 | PHA03247 | large tegument protein UL36; Provisional |
260-575 | 7.64e-04 | ||||||||||
large tegument protein UL36; Provisional Pssm-ID: 223021 [Multi-domain] Cd Length: 3151 Bit Score: 43.39 E-value: 7.64e-04
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| Name | Accession | Description | Interval | E-value | ||||||||||
| Rab_eff_C | pfam04698 | Rab effector MyRIP/melanophilin C-terminus; This domain is found at the C-terminus of the Rab ... |
152-859 | 0e+00 | ||||||||||
Rab effector MyRIP/melanophilin C-terminus; This domain is found at the C-terminus of the Rab effector proteins MyRIP and melanophilin. Pssm-ID: 461398 [Multi-domain] Cd Length: 717 Bit Score: 1240.14 E-value: 0e+00
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| FYVE_2 | pfam02318 | FYVE-type zinc finger; This FYVE-type zinc finger is found at the N-terminus of effector ... |
8-125 | 6.46e-64 | ||||||||||
FYVE-type zinc finger; This FYVE-type zinc finger is found at the N-terminus of effector proteins including rabphilin-3A and regulating synaptic membrane exocytosis protein 2. Pssm-ID: 426716 Cd Length: 118 Bit Score: 209.92 E-value: 6.46e-64
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| FYVE_SlaC2-a | cd15752 | FYVE-related domain found in Slp homolog lacking C2 domains a (SlaC2-a) and similar proteins; ... |
64-137 | 1.60e-29 | ||||||||||
FYVE-related domain found in Slp homolog lacking C2 domains a (SlaC2-a) and similar proteins; SlaC2-a, also termed melanophilin, or exophilin-3, is a GTP-bound form of Rab27A-, myosin Va-, and actin-binding protein present on melanosomes. It is involved in the control of transferring of melanosomes from microtubules to actin filaments. It also functions as a melanocyte type myosin Va (McM5) binding partner and directly activates the actin-activated ATPase activity of McM5 through forming a tripartite protein complex with Rab27A and an actin-based motor myosin Va. SlaC2-a belongs to the Slp homolog lacking C2 domains (Slac2) family. It contains an N-terminal Slp homology domain (SHD), but lacks tandem C2 domains. The SHD consists of two conserved regions, designated SHD1 (Slp homology domain 1) and SHD2, which may function as protein interaction sites. The SHD1 and SHD2 of SlaC2-a are separated by a putative FYVE zinc finger, which resembles a FYVE-related domain that is structurally similar to the canonical FYVE domains but lacks the three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif. Moreover, Slac2-a has a middle myosin-binding domain and a C-terminal actin-binding domain. Pssm-ID: 277291 Cd Length: 76 Bit Score: 111.81 E-value: 1.60e-29
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| FYVE_SlaC2-c | cd15753 | FYVE-related domain found in Slp homolog lacking C2 domains c (SlaC2-c) and similar proteins; ... |
63-111 | 1.60e-29 | ||||||||||
FYVE-related domain found in Slp homolog lacking C2 domains c (SlaC2-c) and similar proteins; SlaC2-c, also termed Rab effector MyRIP, or exophilin-8, or myosin-VIIa- and Rab-interacting protein, or synaptotagmin-like protein lacking C2 domains c, is a GTP-bound form of Rab27A-, myosin Va/VIIa-, and actin-binding protein mainly present on retinal melanosomes and secretory granules. It may play a role in insulin granule exocytosis. It is also involved in the control of isoproterenol (IPR)-induced amylase release from parotid acinar cells. SlaC2-c belongs to the Slp homolog lacking C2 domains (Slac2) family. It contains an N-terminal Slp homology domain (SHD), but lacks tandem C2 domains. The SHD consists of two conserved regions, designated SHD1 (Slp homology domain 1) and SHD2, which may function as protein interaction sites. The SHD1 and SHD2 of SlaC2-c are separated by a putative FYVE zinc finger, which resembles a FYVE-related domain that is structurally similar to the canonical FYVE domains but lacks the three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif. Moreover, Slac2-c has a middle myosin-binding domain and a C-terminal actin-binding domain. Pssm-ID: 277292 Cd Length: 49 Bit Score: 110.95 E-value: 1.60e-29
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| FYVE_Slp3_4_5 | cd15747 | FYVE-related domain found in the synaptotagmin-like proteins 3, 4, 5; The synaptotagmin-like ... |
62-107 | 7.21e-09 | ||||||||||
FYVE-related domain found in the synaptotagmin-like proteins 3, 4, 5; The synaptotagmin-like proteins 1-5 (Slp1-5) family belongs to the carboxyl-terminal-type (C-type) tandem C2 proteins superfamily, which also contains the synaptotagmin and the Doc2 families. Slp proteins are putative membrane trafficking proteins that are characterized by the presence of a unique N-terminal Slp homology domain (SHD), and C-terminal tandem C2 domains (known as the C2A domain and C2B domain). The SHD consists of two conserved regions, designated SHD1 (Slp homology domain 1) and SHD2. The SHD1 and SHD2 of Slp3, Slp4 and Slp5 are separated by a putative FYVE zinc finger. By contrast, Slp1 and Slp2 lack such zinc finger and their SHD1 and SHD2 are linked together. This model corresponds to the FYVE zinc finger. At this point, Slp1 and Slp2 are not included in this model. Moreover, the FYVE domains of Slp3, Slp4 and Slp5 resemble a FYVE-related domain that is structurally similar to the canonical FYVE domains but lacks the three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif. Pssm-ID: 277286 Cd Length: 48 Bit Score: 52.30 E-value: 7.21e-09
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| FYVE_like_SF | cd00065 | FYVE domain like superfamily; FYVE domain is a 60-80 residue double zinc finger ... |
63-107 | 2.59e-08 | ||||||||||
FYVE domain like superfamily; FYVE domain is a 60-80 residue double zinc finger motif-containing module named after the four proteins, Fab1, YOTB, Vac1, and EEA1. The canonical FYVE domains are distinguished from other zinc fingers by three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif, which form a compact phosphatidylinositol 3-phosphate (PtdIns3P, also termed PI3P)-binding site. They are found in many membrane trafficking regulators, including EEA1, Hrs, Vac1p, Vps27p, and FENS-1, which locate to early endosomes, specifically bind PtdIns3P, and play important roles in vesicular traffic and in signal transduction. Some proteins, such as rabphilin-3A and alpha-Rab3-interacting molecules (RIMs), are also involved in membrane trafficking and bind to members of the Rab subfamily of GTP hydrolases. However, they contain FYVE-related domains that are structurally similar to the canonical FYVE domains but lack the three signature sequences. At this point, they may not bind to phosphoinositides. In addition, this superfamily also contains the third group of proteins, caspase-associated ring proteins CARP1 and CARP2. They do not localize to membranes in the cell and are involved in the negative regulation of apoptosis, specifically targeting two initiator caspases, caspase 8 and caspase 10, which are distinguished from other FYVE-type proteins. Moreover, these proteins have an altered sequence in the basic ligand binding patch and lack the WxxD motif that is conserved only in phosphoinositide binding FYVE domains. Thus they constitute a family of unique FYVE-type domains called FYVE-like domains. The FYVE domain is structurally similar to the RING domain and the PHD finger. This superfamily also includes ADDz zinc finger domain, which is a PHD-like zinc finger motif that contains two parts, a C2-C2 and a PHD-like zinc finger. Pssm-ID: 277249 [Multi-domain] Cd Length: 52 Bit Score: 50.99 E-value: 2.59e-08
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| FYVE | smart00064 | Protein present in Fab1, YOTB, Vac1, and EEA1; The FYVE zinc finger is named after four ... |
62-107 | 5.91e-04 | ||||||||||
Protein present in Fab1, YOTB, Vac1, and EEA1; The FYVE zinc finger is named after four proteins where it was first found: Fab1, YOTB/ZK632.12, Vac1, and EEA1. The FYVE finger has been shown to bind two Zn2+ ions. The FYVE finger has eight potential zinc coordinating cysteine positions. The FYVE finger is structurally related to the PHD finger and the RING finger. Many members of this family also include two histidines in a motif R+HHC+XCG, where + represents a charged residue and X any residue. The FYVE finger functions in the membrane recruitment of cytosolic proteins by binding to phosphatidylinositol 3-phosphate (PI3P), which is prominent on endosomes. The R+HHC+XCG motif is critical for PI3P binding. Pssm-ID: 214499 [Multi-domain] Cd Length: 68 Bit Score: 38.95 E-value: 5.91e-04
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| FYVE_spVPS27p_like | cd15735 | FYVE domain found in Schizosaccharomyces pombe vacuolar protein sorting-associated protein 27 ... |
64-94 | 6.78e-04 | ||||||||||
FYVE domain found in Schizosaccharomyces pombe vacuolar protein sorting-associated protein 27 (spVps27p) and similar proteins; spVps27p, also termed suppressor of ste12 deletion protein 4 (Sst4p), is a conserved homolog of budding Saccharomyces cerevisiae Vps27 and of mammalian Hrs. It functions as a downstream factor for phosphatidylinositol 3-kinase (PtdIns 3-kinase) in forespore membrane formation with normal morphology. It colocalizes and interacts with Hse1p, a homolog of Saccharomyces cerevisiae Hse1p and of mammalian STAM, to form a complex whose ubiquitin-interacting motifs (UIMs) are important for sporulation. spVps27p contains a VHS (Vps27p/Hrs/Stam) domain, a FYVE domain, and two UIMs. Pssm-ID: 277274 [Multi-domain] Cd Length: 59 Bit Score: 38.66 E-value: 6.78e-04
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| PHA03247 | PHA03247 | large tegument protein UL36; Provisional |
260-575 | 7.64e-04 | ||||||||||
large tegument protein UL36; Provisional Pssm-ID: 223021 [Multi-domain] Cd Length: 3151 Bit Score: 43.39 E-value: 7.64e-04
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| FYVE_endofin | cd15729 | FYVE domain found in endofin and similar proteins; Endofin, also termed zinc finger FYVE ... |
64-110 | 9.71e-04 | ||||||||||
FYVE domain found in endofin and similar proteins; Endofin, also termed zinc finger FYVE domain-containing protein 16 (ZFY16), or endosome-associated FYVE domain protein, is a FYVE domain-containing protein that is localized to EEA1-containing endosomes. It is regulated by phosphoinositol lipid and engaged in endosome-mediated receptor modulation. Endofin is involved in Bone morphogenetic protein (BMP) signaling through interacting with Smad1 preferentially and enhancing Smad1 phosphorylation and nuclear localization upon BMP stimulation. It also functions as a scaffold protein that brings Smad4 to the proximity of the receptor complex in Transforming growth factor (TGF)-beta signaling. Moreover, endofin is a novel tyrosine phosphorylation target downstream of epidermal growth factor receptor (EGFR) in EGF-signaling. In addition, endofin plays a role in endosomal trafficking by recruiting cytosolic TOM1, an important molecule for membrane recruitment of clathrin, onto endosomal membranes. Pssm-ID: 277268 [Multi-domain] Cd Length: 68 Bit Score: 38.49 E-value: 9.71e-04
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| FYVE_protrudin | cd15723 | FYVE-related domain found in protrudin and similar proteins; Protrudin, also termed zinc ... |
64-110 | 1.69e-03 | ||||||||||
FYVE-related domain found in protrudin and similar proteins; Protrudin, also termed zinc finger FYVE domain-containing protein 27 (ZFY27 or ZFYVE27), is a FYVE domain-containing protein involved in transport of neuronal cargoes and implicated in the onset of hereditary spastic paraplegia (HSP). It is involved in neurite outgrowth through binding to spastin. Moreover, it functions as a key regulator of the Rab11-dependent membrane trafficking during neurite extension. It serves as an adaptor molecule that links its associated proteins, such as Rab11-GDP, VAP-A and -B, Surf4, and RTN3, to KIF5, a motor protein that mediates anterograde vesicular transport in neurons, and thus plays a key role in the maintenance of neuronal function. The FYVE domain of protrudin resembles a FYVE-related domain that is structurally similar to the canonical FYVE domains but lacks the three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif. In addition, unlike canonical FYVE domains that is located to early endosomes and specifically binds to phosphatidylinositol 3-phosphate (PtdIns3P or PI3P), the FYVE domain of protrudin is located to plasma membrane and preferentially binds phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2), phosphatidylinositol 3,4-bisphosphate (PtdIns(3,4)P2), and phosphatidylinositol 3,4,5-trisphosphate (PtdIns(3,4,5)P3). In addition to FYVE-related domain, protrudin also contains a Rab11-binding domain (RBD11), two hydrophobic domains, HP-1 and HP-2, an FFAT motif, and a coiled-coil domain. Pssm-ID: 277262 [Multi-domain] Cd Length: 62 Bit Score: 37.48 E-value: 1.69e-03
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| FYVE_FGD1_2_4 | cd15741 | FYVE domain found in FYVE, RhoGEF and PH domain-containing protein facio-genital dysplasia ... |
64-107 | 1.73e-03 | ||||||||||
FYVE domain found in FYVE, RhoGEF and PH domain-containing protein facio-genital dysplasia FGD1, FGD2, FGD4; This family represents a group of Rho GTPase cell division cycle 42 (Cdc42)-specific guanine nucleotide exchange factors (GEFs), including FYVE, RhoGEF and PH domain-containing protein FGD1, FGD2 and FGD4. FGD1, also termed faciogenital dysplasia 1 protein, or Rho/Rac guanine nucleotide exchange factor FGD1 (Rho/Rac GEF), or zinc finger FYVE domain-containing protein 3, is a central regulator of extracellular matrix remodeling and belongs to the DBL family of GEFs that regulate the activation of the Rho GTPases. FGD1 is encoded by gene FGD1. Disabling mutations in the FGD1 gene cause the human X-linked developmental disorder faciogenital dysplasia (FGDY, also known as Aarskog-Scott syndrome). FGD2, also termed zinc finger FYVE domain-containing protein 4, is expressed in antigen-presenting cells, including B lymphocytes, macrophages, and dendritic cells. It localizes to early endosomes and active membrane ruffles. It plays a role in leukocyte signaling and vesicle trafficking in cells specialized to present antigen in the immune system. FGD4, also termed actin filament-binding protein frabin, or FGD1-related F-actin-binding protein, or zinc finger FYVE domain-containing protein 6, functions as an F-actin-binding (FAB) protein showing significant homology to FGD1. It induces the formation of filopodia through the activation of Cdc42 in fibroblasts. Those FGD proteins possess a similar domain organization that contains a DBL homology (DH) domain, a pleckstrin homology (PH) domain, a FYVE domain, and another PH domain in the C-terminus. However, each FGD has a unique N-terminal region that may directly or indirectly interact with F-actin. FGD1 and FGD4 have an N-terminal proline-rich domain (PRD) and an N-terminal F-actin binding (FAB) domain, respectively. This model corresponds to the FYVE domain, which has been found in many proteins involved in membrane trafficking and phosphoinositide metabolism, and has been defined by three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCR patch, and a C-terminal RVC motif, which form a compact phosphatidylinositol 3-phosphate (PtdIns3P or PI3P)-binding site. FGD1 possesses a FYVE-like domain that lack the N-terminal WxxD motif. Moreover, FGD2 is the only known RhoGEF family member shown to have a functional FYVE domain and endosomal binding activity. Pssm-ID: 277280 [Multi-domain] Cd Length: 65 Bit Score: 37.47 E-value: 1.73e-03
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| FYVE_Slp4 | cd15764 | FYVE-related domain found in synaptotagmin-like protein 4 (Slp4) and similar proteins; Slp4, ... |
61-107 | 2.15e-03 | ||||||||||
FYVE-related domain found in synaptotagmin-like protein 4 (Slp4) and similar proteins; Slp4, also termed exophilin-2, or granuphilin, has been characterized as a regulator of the release of insulin granules from pancreatic beta-cells and dense core granules from PC12 neuronal cells by binding to Rab27A , and amylase granules from parotid gland acinar cells through interaction with syntaxin-2/3 in a Munc18-2-dependent manner on the apical plasma membrane. It can binds to syntaxin 2 in parotid acinar cells. It is also involved in granule transport by recruitment of the motor protein myosin Va. Moreover, it requires Rab8 to increase granule release in platelets. Slp4 contains an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains. The Slp homology domain (SHD) consists of two conserved regions, designated SHD1 (Slp homology domain 1) and SHD2, which may function as protein interaction sites. The SHD1 and SHD2 of Slp4 are separated by a putative FYVE zinc finger, which resembles a FYVE-related domain that is structurally similar to the canonical FYVE domains but lacks the three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif. Pssm-ID: 277303 Cd Length: 50 Bit Score: 36.68 E-value: 2.15e-03
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| FYVE_Slp3 | cd15765 | FYVE-related domain found in synaptotagmin-like protein 3 (Slp3) and similar proteins; Slp3, ... |
61-107 | 2.67e-03 | ||||||||||
FYVE-related domain found in synaptotagmin-like protein 3 (Slp3) and similar proteins; Slp3, also termed exophilin-6, functions as a Rab27A-specific effector in cytotoxic T lymphocytes. It binds to kinesin-1 motor through interaction with the tetratricopeptide repeat of the kinesin-1 light chain (KLC1). The kinesin-1/Slp3/Rab27a complex plays a role in mediating the terminal transport of lytic granules to the immune synapse. Slp3 contains an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains. The Slp homology domain (SHD) consists of two conserved regions, designated SHD1 (Slp homology domain 1) and SHD2, which may function as protein interaction sites. The SHD1 and SHD2 of Slp3 are separated by a putative FYVE zinc finger, which resembles a FYVE-related domain that is structurally similar to the canonical FYVE domains but lacks the three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif. In addition, the Slp3 C2A domain showed Ca2+-dependent phospholipid binding activity. At this point, Slp3 is a Ca2+-dependent isoform in Slp proteins family. Pssm-ID: 277304 Cd Length: 48 Bit Score: 36.71 E-value: 2.67e-03
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| FYVE_BSN_PCLO | cd15751 | FYVE-related domain found in protein bassoon and piccolo; This family includes protein bassoon ... |
62-115 | 3.62e-03 | ||||||||||
FYVE-related domain found in protein bassoon and piccolo; This family includes protein bassoon and piccolo. Protein bassoon, also termed zinc finger protein 231, is a core component of the presynaptic cytomatrix. It is a vertebrate-specific active zone scaffolding protein that plays a key role in structural organization and functional regulation of presynaptic release sites. Bassoon may modulate synaptic transmission efficiency by binding to presynaptic P/Q-type voltage-dependent calcium channel (VDCC) complexes and modify the channel function. As one of the most highly phosphorylated synaptic proteins, bassoon can interact with the small ubiquitous adaptor protein 14-3-3 in a phosphorylation-dependent manner, which modulates its anchoring to the presynaptic cytomatrix. Protein piccolo, also termed aczonin, is a neuron-specific presynaptic active zone scaffolding protein that mainly interacts with a detergent-resistant cytoskeletal-like subcellular fraction and is involved in the organization of the interplay between neurotransmitter vesicles, the cytoskeleton, and the plasma membrane at synaptic active zones. It binds profilin, an actin-binding protein implicated in actin cytoskeletal dynamics. It also functions as a presynaptic low-affinity Ca2+ sensor and has been implicated in Ca2+ regulation of neurotransmitter release. Both bassoon and piccolo contain two N-terminal FYVE zinc fingers, a PDZ domain and two C-terminal C2 domains. Their FYVE domain resembles a FYVE-related domain that is structurally similar to the canonical FYVE domains but lacks the three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif. Pssm-ID: 277290 [Multi-domain] Cd Length: 62 Bit Score: 36.66 E-value: 3.62e-03
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| FYVE_CARP2 | cd15770 | FYVE-like domain found in caspase regulator CARP2 and similar proteins; CARP2, also termed E3 ... |
61-111 | 5.32e-03 | ||||||||||
FYVE-like domain found in caspase regulator CARP2 and similar proteins; CARP2, also termed E3 ubiquitin-protein ligase rififylin, or caspases-8 and -10-associated RING finger protein 2, or FYVE-RING finger protein Sakura (Fring), or RING finger and FYVE-like domain-containing protein 1, or RING finger protein 189, or RING finger protein 34-like, is a novel caspase regulator containing a FYVE-type zinc finger domain. It regulates the p53 signaling pathway through degrading 14-3-3 sigma and stabilizing MDM2. CARP2 does not localize to membranes in the cell and is involved in the negative regulation of apoptosis, specifically targeting two initiator caspases, caspase 8 and caspase 10, which are distinguished from other FYVE-type proteins. Moreover, CARP2 has an altered sequence in the basic ligand binding patch and lack the WxxD (x for any residue) motif that is conserved only in phosphoinositide binding FYVE domains. Thus it belongs to a family of unique FYVE-type domains called FYVE-like domains. In addition to the N-terminal FYVE-like domain, CARP2 harbors a C-terminal RING domain. Pssm-ID: 277309 Cd Length: 49 Bit Score: 35.59 E-value: 5.32e-03
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| FYVE_RP3A | cd15762 | FYVE-related domain found in rabphilin-3A and similar proteins; Rabphilin-3A, also termed ... |
81-129 | 5.93e-03 | ||||||||||
FYVE-related domain found in rabphilin-3A and similar proteins; Rabphilin-3A, also termed exophilin-1, is an effector protein that binds to the GTP-bound form of Rab3A, which is one of the most abundant Rab proteins in neurons and predominantly localized to synaptic vesicles. Rabphilin-3A is homologous to alpha-Rab3-interacting molecules (RIMs). It is a multi-domain protein containing an N-terminal Rab3A effector domain, a proline-rich linker region, and two tandem C2 domains. The effector domain binds specifically to the activated GTP-bound state of Rab3A and harbors a conserved FYVE zinc finger. The C2 domains are responsible for the binding of phosphatidylinositol-4,5-bisphosphate (PIP2) , a key player in the neurotransmitter release process. Thus, Rabphilin-3A has also been implicated in vesicle trafficking. The FYVE domain of Rabphilin-3A resembles a FYVE-related domain that is structurally similar to the canonical FYVE domains but lacks the three signature sequences: an N-terminal WxxD motif (x for any residue), the central basic R(R/K)HHCRxCG patch, and a C-terminal RVC motif. Pssm-ID: 277301 Cd Length: 80 Bit Score: 36.47 E-value: 5.93e-03
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