E3 ubiquitin-protein ligase SSM4 [Saccharomyces cerevisiae S288C]
Protein Classification
E3 ubiquitin-protein ligase MARCH( domain architecture ID 11474101)
E3 ubiquitin-protein ligase MARCH (membrane-associated RING-CH) mediates through its RING domain the ubiquitination of target proteins by bringing the ubiquitin-charged E2 ubiquitin-conjugating enzyme and the acceptor protein together to enable the direct transfer of ubiquitin
List of domain hits
| Name | Accession | Description | Interval | E-value | ||||||||||||||||||
| SSM4 | COG5183 | E3 ubiquitin-protein ligase DOA10 [Posttranslational modification, protein turnover, ... |
22-1319 | 0e+00 | ||||||||||||||||||
E3 ubiquitin-protein ligase DOA10 [Posttranslational modification, protein turnover, chaperones]; : Pssm-ID: 227510 [Multi-domain] Cd Length: 1175 Bit Score: 1561.48 E-value: 0e+00
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| Name | Accession | Description | Interval | E-value | ||||||||||||||||||
| SSM4 | COG5183 | E3 ubiquitin-protein ligase DOA10 [Posttranslational modification, protein turnover, ... |
22-1319 | 0e+00 | ||||||||||||||||||
E3 ubiquitin-protein ligase DOA10 [Posttranslational modification, protein turnover, chaperones]; Pssm-ID: 227510 [Multi-domain] Cd Length: 1175 Bit Score: 1561.48 E-value: 0e+00
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| RING_CH-C4HC3_MARCH6 | cd16702 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH6 (MARCH6); ... |
38-95 | 4.94e-26 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH6 (MARCH6); MARCH6, also known as membrane-associated RING finger protein 6, membrane-associated RING-CH protein VI (MARCH-VI), RING finger protein 176 (RNF176), protein TEB-4, or Doa10 homolog, is an endoplasmic reticulum (ER)-localized E3 ubiquitin ligase that ubiquitinates ER-associated proteins with a cytoplasmic domain in a ubiquitin-conjugating enzyme 7 (UBC7)-dependent manner), such as Mps2, UBC6, and Ste6. It also regulates its own UBC7-mediated degradation. MARCH6 interacts with ubiquitin-specific protease USP19, which deubiquitinates and stabilizes MARCH6 and inhibits p97-dependent proteasomal degradation. It is also involved in the cholesterol synthesis pathway by controlling the degradation of squalene monooxygenase (SM), and affects 3-hydroxy-3-methyl-glutaryl coenzyme A reductase (HMGCR). Furthermore, it may be a key regulator of thyroid hormone activation in a number of tissues, since it mediates the proteasomal degradation of type 2 iodothyronine deiodinase (D2). MARCH6 contains 14 transmembrane helices and a conserved N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, that catalyzes ubiquitin Lys48-specific ligation. Pssm-ID: 438362 Cd Length: 50 Bit Score: 101.57 E-value: 4.94e-26
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| RINGv | pfam12906 | RING-variant domain; |
39-93 | 5.33e-20 | ||||||||||||||||||
RING-variant domain; Pssm-ID: 403957 Cd Length: 47 Bit Score: 84.36 E-value: 5.33e-20
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| RINGv | smart00744 | The RING-variant domain is a C4HC3 zinc-finger like motif found in a number of cellular and ... |
39-94 | 5.51e-20 | ||||||||||||||||||
The RING-variant domain is a C4HC3 zinc-finger like motif found in a number of cellular and viral proteins; Some of these proteins have been shown both in vivo and in vitro to have ubiquitin E3 ligase activity. The RING-variant domain is reminiscent of both the RING and the PHD domains and may represent an evolutionary intermediate. To describe this domain the term PHD/LAP domain has been used in the past. Extended description: The RING-variant (RINGv) domain contains a C4HC3 zinc-finger-like motif similar to the PHD domain, while some of the spacing between the Cys/His residues follow a pattern somewhat closer to that found in the RING domain. The RINGv domain, similar to the RING, PHD and LIM domains, is thought to bind two zinc ions co-ordinated by the highly conserved Cys and His residues. RING variant domain: C-x (2) -C-x(10-45)-C-x (1) -C-x (7) -H-x(2)-C-x(11-25)-C-x(2)-C As opposed to a PHD: C-x(1-2) -C-x (7-13)-C-x(2-4)-C-x(4-5)-H-x(2)-C-x(10-21)-C-x(2)-C Classical RING domain: C-x (2) -C-x (9-39)-C-x(1-3)-H-x(2-3)-C-x(2)-C-x(4-48) -C-x(2)-C Pssm-ID: 128983 [Multi-domain] Cd Length: 49 Bit Score: 84.27 E-value: 5.51e-20
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| Name | Accession | Description | Interval | E-value | ||||||||||||||||||
| SSM4 | COG5183 | E3 ubiquitin-protein ligase DOA10 [Posttranslational modification, protein turnover, ... |
22-1319 | 0e+00 | ||||||||||||||||||
E3 ubiquitin-protein ligase DOA10 [Posttranslational modification, protein turnover, chaperones]; Pssm-ID: 227510 [Multi-domain] Cd Length: 1175 Bit Score: 1561.48 E-value: 0e+00
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| RING_CH-C4HC3_MARCH6 | cd16702 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH6 (MARCH6); ... |
38-95 | 4.94e-26 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH6 (MARCH6); MARCH6, also known as membrane-associated RING finger protein 6, membrane-associated RING-CH protein VI (MARCH-VI), RING finger protein 176 (RNF176), protein TEB-4, or Doa10 homolog, is an endoplasmic reticulum (ER)-localized E3 ubiquitin ligase that ubiquitinates ER-associated proteins with a cytoplasmic domain in a ubiquitin-conjugating enzyme 7 (UBC7)-dependent manner), such as Mps2, UBC6, and Ste6. It also regulates its own UBC7-mediated degradation. MARCH6 interacts with ubiquitin-specific protease USP19, which deubiquitinates and stabilizes MARCH6 and inhibits p97-dependent proteasomal degradation. It is also involved in the cholesterol synthesis pathway by controlling the degradation of squalene monooxygenase (SM), and affects 3-hydroxy-3-methyl-glutaryl coenzyme A reductase (HMGCR). Furthermore, it may be a key regulator of thyroid hormone activation in a number of tissues, since it mediates the proteasomal degradation of type 2 iodothyronine deiodinase (D2). MARCH6 contains 14 transmembrane helices and a conserved N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, that catalyzes ubiquitin Lys48-specific ligation. Pssm-ID: 438362 Cd Length: 50 Bit Score: 101.57 E-value: 4.94e-26
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| RING_CH-C4HC3_MARCH | cd16495 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH proteins (MARCH) ... |
39-94 | 1.29e-21 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH proteins (MARCH); This family of membrane-associated E3 ubiquitin ligases consists of 11 members in mammals (MARCH1-11), which are characterized by containing an N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of the C3H2C3-type RING-H2 finger). Most family members have hydrophobic transmembrane regions and are localized to the plasma membrane and intracellular organelle membrane. Only MARCH7 and MARCH10 are predicted to have no transmembrane spanning region. MARCH proteins have been implicated in mediating the ubiquitination and subsequent down-regulation of cell-surface immune regulatory molecules, such as major histocompatibility complex class II and CD86, as well as in endoplasmic reticulum-associated degradation, endosomal protein trafficking, mitochondrial dynamics, and spermatogenesis. Pssm-ID: 438158 Cd Length: 51 Bit Score: 88.94 E-value: 1.29e-21
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| RINGv | pfam12906 | RING-variant domain; |
39-93 | 5.33e-20 | ||||||||||||||||||
RING-variant domain; Pssm-ID: 403957 Cd Length: 47 Bit Score: 84.36 E-value: 5.33e-20
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| RINGv | smart00744 | The RING-variant domain is a C4HC3 zinc-finger like motif found in a number of cellular and ... |
39-94 | 5.51e-20 | ||||||||||||||||||
The RING-variant domain is a C4HC3 zinc-finger like motif found in a number of cellular and viral proteins; Some of these proteins have been shown both in vivo and in vitro to have ubiquitin E3 ligase activity. The RING-variant domain is reminiscent of both the RING and the PHD domains and may represent an evolutionary intermediate. To describe this domain the term PHD/LAP domain has been used in the past. Extended description: The RING-variant (RINGv) domain contains a C4HC3 zinc-finger-like motif similar to the PHD domain, while some of the spacing between the Cys/His residues follow a pattern somewhat closer to that found in the RING domain. The RINGv domain, similar to the RING, PHD and LIM domains, is thought to bind two zinc ions co-ordinated by the highly conserved Cys and His residues. RING variant domain: C-x (2) -C-x(10-45)-C-x (1) -C-x (7) -H-x(2)-C-x(11-25)-C-x(2)-C As opposed to a PHD: C-x(1-2) -C-x (7-13)-C-x(2-4)-C-x(4-5)-H-x(2)-C-x(10-21)-C-x(2)-C Classical RING domain: C-x (2) -C-x (9-39)-C-x(1-3)-H-x(2-3)-C-x(2)-C-x(4-48) -C-x(2)-C Pssm-ID: 128983 [Multi-domain] Cd Length: 49 Bit Score: 84.27 E-value: 5.51e-20
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| RING_CH-C4HC3_MARCH1-like | cd16698 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING finger protein ... |
39-96 | 5.75e-13 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING finger protein MARCH1, MARCH8, and similar proteins; This subfamily includes the closely related MARCH1 and MARCH8, both of which are located on endosomes and the plasma membrane and are implicated in regulating cell surface expression of their substrates. They ubiquitylate and downregulate many targets, including major histocompatibility complex class II (MHCII), CD86, transferrin receptor, HLA-DM, and Fas from the cell surface. MARCH1 is mainly expressed in cells of the immune system, while MARCH8 is more broadly expressed. Both of them contain an N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, and two transmembrane domains. The cytoplasmic RING-CH finger participates in the ubiquitin transfer from the E2 to its substrate. The transmembrane domains are implicated in target recognition and dimer formation. Pssm-ID: 438359 Cd Length: 52 Bit Score: 64.37 E-value: 5.75e-13
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| RING_CH-C4HC3_MARCH7 | cd16812 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH7 (MARCH7); ... |
36-93 | 9.46e-13 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH7 (MARCH7); MARCH7, also known as membrane-associated RING finger protein 7, membrane-associated RING-CH protein VII (MARCH-VII), RING finger protein 177 (RNF177), or axotrophin, is a ubiquitin E3 ligase expressed in multiple types of cells and tissues, including stem cells and precursor cells, and is predominantly localized on the plasma membrane and cytoplasm. MARCH7 is involved in T cell proliferation and neuronal development. It also participates in the regulation of cytoskeleton re-organization, cellular migration and invasion, cell proliferation, and tumorigenesis in ovarian carcinoma cells. Moreover, MARCH7 modulates nuclear factor kappaB (NF-kappaB) and Wnt/beta-catenin pathways. It has been identified as an authentic target of miR-101. Furthermore, it ubiquitinates tau protein in vitro, impairing microtubule binding. Unlike other MARCH proteins, MARCH7 is predicted to have no transmembrane spanning region. It harbors a C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, that is responsible for its E3 activity. Pssm-ID: 438461 Cd Length: 65 Bit Score: 64.50 E-value: 9.46e-13
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| RING_CH-C4HC3_MARCH1 | cd16806 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH1 (MARCH1); ... |
39-101 | 6.61e-11 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH1 (MARCH1); MARCH1, also known as membrane-associated RING finger protein 1, membrane-associated RING-CH protein I (MARCH-I), or RING finger protein 171 (RNF171), is a membrane-anchored E3 ubiquitin ligase that is mainly expressed in cells of the immune system. It regulates antigen presentation and T-cell costimulatory functions of dendritic cells by down-regulating the cell surface expression of major histocompatibility complex class II (MHCII) and CD86 molecules. It mediates ubiquitination of MHCII and CD86 in dendritic cells (DCs). This ubiquitination induces MHCII and CD86 endocytosis, lysosomal transport, and degradation. MARCH1 also plays a regulatory role in T cell activation during immune responses, as well as in splenic DC homeostasis. Moreover, MARCH1 may regulate its own expression through dimerization and autoubiquitination. MARCH1 contains an N-terminal cytoplasmic C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger and two transmembrane domains. Pssm-ID: 438457 Cd Length: 70 Bit Score: 59.31 E-value: 6.61e-11
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| RING_CH-C4HC3_MARCH7-like | cd16703 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated MARCH7, MARCH10, and ... |
36-93 | 7.11e-11 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated MARCH7, MARCH10, and similar proteins; This subfamily includes two closely related membrane-associated RING-CH proteins, MARCH7 and MARCH10, both of which are predicted to have no transmembrane spanning region, but do harbor a C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, that is responsible for E3 activity. MARCH7, also known as MARCH-VII, RNF177, or axotrophin, is a ubiquitin E3 ligase expressed in multiple types of cells and tissues, including stem cells and precursor cells, and is predominantly localized on the plasma membrane, and cytoplasm. MARCH7 is involved in T cell proliferation and neuronal development. It also participates in the regulation of cytoskeleton re-organization, cellular migration and invasion, cell proliferation, and tumorigenesis in ovarian carcinoma cells. Moreover, MARCH7 modulates nuclear factor kappaB (NF-kappaB) and Wnt/beta-catenin pathways. It has been identified as an authentic target of miR-101. It ubiquitinates tau protein in vitro, impairing microtubule binding. MARCH10, also known as MARCH-X or RNF190, is a microtubule-associated E3 ubiquitin ligase of developing spermatids and is involved in spermiogenesis by regulating the formation and maintenance of the flagella. It is localized to the principal piece of elongating spermatids. in developing spermatids. Pssm-ID: 438363 Cd Length: 61 Bit Score: 58.81 E-value: 7.11e-11
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| RING_CH-C4HC3_MARCH8 | cd16807 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH8 (MARCH8); ... |
39-101 | 8.42e-11 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH8 (MARCH8); MARCH8, also known as membrane-associated RING finger protein 8, membrane-associated RING-CH protein VIII (MARCH-VIII), RING finger protein 178 (RNF178), or cellular modulator of immune recognition (c-MIR), is a membrane-anchored E3 ubiquitin ligase that is broadly expressed. It is a functional homolog of Kaposi"s sarcoma associated-herpes virus encoded proteins, modulator of immune recognition (MIR) 1 and 2, which are involved in the evasion of host immunity. MARCH8 mediates the ubiquitination and down-regulation of immune regulatory cell surface molecules, including major histocompatibility complex class II (MHCII), CD86, transferrin receptor, HLA-DM, and Fas in immune cells. Moreover, MARCH8 controls cell surface expression of some additional proteins. It regulates the ubiquitination and lysosomal degradation of the transferrin receptor (TfR). Tumor necrosis factor-related apoptosis inducing ligand receptor 1 (TRAIL-R1) is also a physiological substrate of the endogenous MARCH8, which regulates the steady-state cell surface expression of TRAIL-R1. Meanwhile, it negatively regulates interleukin-1 (IL-1) beta-induced NF-kappaB activation by targeting the IL-1 receptor accessory protein (IL1RAP) coreceptor for ubiquitination and degradation. Furthermore, MARCH8 functions in the embryo to modulate the strength of cell adhesion by regulating the localization of E-cadherin. In addition, MARCH8 plays a role in the inhibition of inflammatory cytokine production, suggesting a new therapeutic approach to the treatment of rheumatoid arthritis (RA). MARCH8 contains an N-terminal cytoplasmic C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger and two transmembrane domains. Pssm-ID: 438458 Cd Length: 64 Bit Score: 58.93 E-value: 8.42e-11
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| RING_CH-C4HC3_MARCH2-like | cd16699 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING finger proteins ... |
39-95 | 8.86e-11 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING finger proteins MARCH2, MARCH3, and similar proteins; MARCH2 and MARCH3 contain a C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, in the N-terminal cytoplasmic region, two transmembrane domains in the middle region, and a PDZ-binding motif at the C-terminus. MARCH2 is a Golgi-localized, membrane-associated E3 ubiquitin-protein ligase that is involved in endosomal trafficking through the binding of syntaxin 6 (STX6). It is involved in the cystic fibrosis transmembrane conductance regulator (CFTR)-associated ligand (CAL)-mediated ubiquitination and lysosomal degradation of mature CFTR through the association with adaptor proteins CAL and STX6. It also reduces the surface expression of CD86 and the transferrin receptor TFRC and regulates cell surface carvedilol-bound beta2-adrenergic receptor (beta2ARs) expression. Moreover, MARCH2 interacts with and ubiquitinates PDZ domains polarity determining scaffold protein DLG1 through its PDZ-binding motif, suggesting it may function as a molecular bridge with ubiquitin ligase activity connecting endocytic tumor suppressor proteins such as syntaxins to DLG1. MARCH3 is an E3 ubiquitin-protein ligase that is broadly expressed at relatively high levels in spleen, colon, and lung. It is localized to early endosomes, binds to MARCH2 and syntaxin 6, and is involved in the regulation of vesicular trafficking and fusion of the transport vesicles in endosomes. Its E2 specificity significantly overlaps that of MARCH2. Pssm-ID: 438360 Cd Length: 51 Bit Score: 58.25 E-value: 8.86e-11
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| RING_CH-C4HC3_MARCH5 | cd16701 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH5 (MARCH5); ... |
38-93 | 4.27e-10 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH5 (MARCH5); MARCH5, also known as membrane-associated RING finger protein 5, membrane-associated RING-CH protein V (MARCH-V), RING finger protein 153 (RNF153), or mitochondrial ubiquitin ligase (MITOL), is a mitochondrial outer membrane-associated E3 ubiquitin-protein ligase that regulates mitochondrial dynamics including mitochondrial morphology, transport, and interaction with endoplasmic reticulum (ER), at least in part, through the ubiquitination of mitochondrial fission factor Drp1, microtubule-associated protein 1B (MAP1B) and mitofusin 2 (Mfn2), respectively. MARCH5 also mediates the cell cycle-dependent degradation of Mitofusin 1 (Mfn1) in G2/M phase, and thus serves as an upstream quality controller of Mitofusin 1 (Mfn1), preventing excessive accumulation of Mfn1 protein under stress conditions, which is crucial for mitochondrial homeostasis and cell viability. Moreover, MARCH5 is involved in maintaining mouse-embryonic stem cell (mESC) pluripotency via suppression of ERK signalling. It is also a positive regulator of Toll-like receptor 7 (TLR7)-mediated NF-kappaB activation in mammals. MARCH5 contains an N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, and four C-terminal transmembrane spans. Pssm-ID: 438361 [Multi-domain] Cd Length: 61 Bit Score: 56.62 E-value: 4.27e-10
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| RING_CH-C4HC3_MARCH4-like | cd16700 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING finger proteins ... |
39-95 | 1.33e-08 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING finger proteins MARCH4, MARCH9, MARCH11, and similar proteins; MARCH4 and MARCH9 are closely related to each other. They downregulate major histocompatibility complex-I (MHC-I). Moreover, MARCH4 and MARCH9, but not other MARCH proteins, can associate with Mult1 and prevent Mult1 expression at the cell surface in a lysine-dependent manner that can be reversed by heat shocking the cells. MARCH11 is a transmembrane RING-finger ubiquitin ligase that is predominantly expressed in developing spermatids in a stage-specific manner and is localized to trans-Golgi network (TGN) vesicles and multivesicular bodies (MVBs). It mediates selective protein sorting via the TGN-MVB transport pathway through its ubiquitin ligase activity. SAMT family proteins have been identified as substrates of MARCH11 in mouse spermatids, suggesting that MARCH11 plays a role in mammalian spermiogenesis. Moreover, MARCH11 targets CD4 for ubiquitination. It also forms complexes with the adaptor protein complex-1 and with fucose-containing glycoproteins including ubiquitinated forms. All subfamily members contain an N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, followed by two transmembrane regions. Pssm-ID: 319614 Cd Length: 51 Bit Score: 52.25 E-value: 1.33e-08
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| RING_CH-C4HC3_MARCH10 | cd16813 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH10 (MARCH10); ... |
31-93 | 1.73e-08 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH10 (MARCH10); MARCH10, also known as membrane-associated RING finger protein 10, membrane-associated RING-CH protein X (MARCH-X), or RING finger protein 190 (RNF190), is a microtubule-associated E3 ubiquitin ligase in developing spermatids and is involved in spermiogenesis by regulating the formation and maintenance of the flagella. It is localized to the principal piece of elongating spermatids. Unlike other MARCH proteins, MARCH10 is predicted to have no transmembrane spanning region. It harbors a C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, that is responsible for its E3 activity. Pssm-ID: 438462 Cd Length: 76 Bit Score: 52.76 E-value: 1.73e-08
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| RING_CH-C4HC3_MARCH3 | cd16809 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH3 (MARCH3); ... |
39-95 | 3.61e-08 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH3 (MARCH3); MARCH3, also known as membrane-associated RING finger protein 3, or membrane-associated RING-CH protein III (MARCH-III), or RING finger protein 173 (RNF173), is an E3 ubiquitin-protein ligase that is broadly expressed and is found at relatively high levels in spleen, colon, and lung. It is localized to early endosomes, binds to MARCH2 and syntaxin 6, and is involved in the regulation of vesicular trafficking and fusion of the transport vesicles in endosomes. MARCH3 is the closest homolog of MARCH2 and it is also a functional homolog of K3 and K5 viral ubiquitin E3 ligases related to immune-evasion strategies used by Kaposi's sarcoma-associated herpesvirus (KSHV). Its E2 specificity significantly overlaps that of MARCH2. MARCH3 contains a C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, in the N-terminal cytoplasmic region, two transmembrane domains in the middle region, and a PDZ-binding motif at the C-terminus. The RING-CH finger and PDZ-binding motif are essential for the subcellular localization of MARCH3 and the inhibitory effect on transferrin uptake. Pssm-ID: 438459 Cd Length: 56 Bit Score: 51.24 E-value: 3.61e-08
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| RING_CH-C4HC3_MARCH4_9 | cd16811 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING finger protein ... |
39-95 | 1.27e-07 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING finger protein MARCH4, MARCH9, and similar proteins; This subfamily includes the closely related MARCH4 and MARCH9, both belonging to the family of MARCH E3 ligases. They downregulate major histocompatibility complex-I (MHC-I). In the presence of MARCH4 or MARCH9, MHC-I can be ubiquitinated and rapidly internalized by endocytosis, whereas MHC-I molecules lacking lysines in their cytoplasmic tail are resistant to downregulation. Moreover, MARCH4 and MARCH9, but not other MARCH proteins, can associate with Mult1 and prevent Mult1 expression at the cell surface in a lysine-dependent manner that can be reversed by heat shocking the cells. Both MARCH4 and MARCH9 contain an N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, followed by two transmembrane regions. Pssm-ID: 319725 Cd Length: 51 Bit Score: 49.26 E-value: 1.27e-07
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| RING_CH-C4HC3_MARCH11 | cd16810 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH11 (MARCH11); ... |
38-102 | 1.51e-07 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH11 (MARCH11); MARCH11, also known as membrane-associated RING finger protein 11, or membrane-associated RING-CH protein XI (MARCH-XI), is a transmembrane RING-finger ubiquitin ligase that is predominantly expressed in developing spermatids in a stage-specific manner and is localized to trans-Golgi network (TGN) vesicles and multivesicular bodies (MVBs). It mediates selective protein sorting via the TGN-MVB transport pathway through its ubiquitin ligase activity. SAMT family proteins have been identified as substrates of MARCH11 in mouse spermatids, suggesting that MARCH11 plays a role in mammalian spermiogenesis. Moreover, MARCH11 targets CD4 for ubiquitination. It also forms complexes with the adaptor protein complex-1 and with fucose-containing glycoproteins including ubiquitinated forms. MARCH11 contains an N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, and two transmembrane domains. In addition, it harbors a proline-rich region, a tyrosine-based motif, and a PDZ binding motif. Pssm-ID: 438460 Cd Length: 60 Bit Score: 49.28 E-value: 1.51e-07
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| RING_CH-C4HC3_MARCH4 | cd16824 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH4 (MARCH4); ... |
39-95 | 3.60e-07 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH4 (MARCH4); MARCH4, also known as membrane-associated RING finger protein 4, membrane-associated RING-CH protein IV (MARCH-IV), or RING finger protein 174 (RNF174), is a transmembrane E3 ubiquitin-protein ligase that down-regulates the tetraspanin CD81 and major histocompatibility complex-I (MHC). It also associates with Mult1, suppressing Mult1 expression at the cell surface in a lysine-dependent manner that can be reversed by heat shocking the cells. MARCH4 contains an N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, followed by two transmembrane regions. Pssm-ID: 438473 Cd Length: 56 Bit Score: 48.07 E-value: 3.60e-07
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| RING_CH-C4HC3_MARCH9 | cd16825 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH9 (MARCH9); ... |
39-95 | 5.66e-07 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH9 (MARCH9); MARCH9, also known as membrane-associated RING finger protein 9, membrane-associated RING-CH protein IX (MARCH-IX), or RING finger protein 179 (RNF179), is a transmembrane E3 ubiquitin-protein ligase that down-regulates Mult1, CD4, major histocompatibility complex-I (MHC), and intercellular adhesion molecule (ICAM-1). It may also interact with receptor-type protein-tyrosine phosphatases (e.g. PTPRJ/CD148) as well as Fc gamma receptor IIB (CD32B), HLA-DQ, signaling lymphocytic activation molecule (CD150), and polio virus receptor (CD155). MARCH9 contains an N-terminal C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, followed by two transmembrane regions. Pssm-ID: 438474 Cd Length: 54 Bit Score: 47.73 E-value: 5.66e-07
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| RING_CH-C4HC3_MARCH2 | cd16808 | RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH2 (MARCH2); ... |
39-94 | 6.30e-07 | ||||||||||||||||||
RING-CH finger, H2 subclass (C4HC3-type), found in membrane-associated RING-CH2 (MARCH2); MARCH2, also known as membrane-associated RING finger protein 2, membrane-associated RING-CH protein II (MARCH-II), or RING finger protein 172 (RNF172), is a Golgi-localized, membrane-associated E3 ubiquitin-protein ligase that is involved in endosomal trafficking through the binding of syntaxin 6 (STX6). It is involved in the cystic fibrosis transmembrane conductance regulator (CFTR)-associated ligand (CAL)-mediated ubiquitination and lysosomal degradation of mature CFTR through the association with adaptor proteins CAL and STX6. It also reduces the surface expression of CD86 and the transferrin receptor TFRC and regulates cell surface carvedilol-bound beta2-adrenergic receptor (beta2AR) expression. Moreover, MARCH2 interacts with and ubiquitinates PDZ domains polarity determining scaffold protein DLG1 through its PDZ-binding motif, suggesting it may function as a molecular bridge with ubiquitin ligase activity connecting endocytic tumor suppressor proteins such as syntaxins to DLG1. MARCH2 contains a C4HC3-type RING-CH finger, also known as vRING or RINGv, a variant of C3H2C3-type RING-H2 finger, in the N-terminal cytoplasmic region, two transmembrane domains in the middle region, and a PDZ-binding motif at the C-terminus. Pssm-ID: 319722 Cd Length: 52 Bit Score: 47.40 E-value: 6.30e-07
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| RING-H2 | cd16448 | H2 subclass of RING (RING-H2) fingers and its variants; The RING finger is a specialized type ... |
39-78 | 4.01e-03 | ||||||||||||||||||
H2 subclass of RING (RING-H2) fingers and its variants; The RING finger is a specialized type of Zn-finger of 40 to 60 residues that binds two atoms of zinc. It is defined by the "cross-brace" motif that chelates zinc atoms by eight amino acid residues, typically Cys or His, arranged in a characteristic spacing. Canonical RING motifs have been categorized into two major subclasses, RING-HC (C3HC4-type) and RING-H2 (C3H2C3-type), according to their Cys/His content. There are also many variants of RING fingers: some have different Cys/His patterns while some lack a single Cys or His residue at typical Zn ligand positions (the fourth or eighth zinc ligand is prevalently exchanged for an Asp, which can indeed chelate Zn in a RING finger as well). This family corresponds to the H2 subclass of RING (RING-H2) finger proteins that are characterized by containing C3H2C3-type canonical RING-H2 fingers or noncanonical RING-H2 finger variants, including C4HC3- (RING-CH alias RINGv), C3H3C2-, C3H2C2D-, C3DHC3-, and C4HC2H-type modified RING-H2 fingers. The canonical RING-H2 finger has been defined as C-X2-C-X(9-39)-C-X(1-3)-H-X(2-3)-H-X2-C-X(4-48)-C-X2-C, X is any amino acid and the number of X residues varies in different fingers. It binds two Zn ions in a unique "cross-brace" arrangement, which distinguishes it from tandem zinc fingers and other similar motifs. RING-H2 finger can be found in a group of diverse proteins with a variety of cellular functions, including oncogenesis, development, viral replication, signal transduction, the cell cycle and apoptosis. Many of them are ubiquitin-protein ligases (E3s) that serves as a scaffold for binding to ubiquitin-conjugating enzymes (E2s, also referred to as ubiquitin carrier proteins or UBCs) in close proximity to substrate proteins, which enables efficient transfer of ubiquitin from E2 to the substrates. Pssm-ID: 438112 [Multi-domain] Cd Length: 43 Bit Score: 36.23 E-value: 4.01e-03
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