MARH8_XENTR
ID MARH8_XENTR Reviewed; 264 AA.
AC Q28IK8; Q6GL81;
DT 06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT 04-APR-2006, sequence version 1.
DT 03-AUG-2022, entry version 91.
DE RecName: Full=E3 ubiquitin-protein ligase MARCHF8;
DE EC=2.3.2.27;
DE AltName: Full=Membrane-associated RING finger protein 8;
DE AltName: Full=Membrane-associated RING-CH protein VIII;
DE Short=MARCH-VIII;
DE AltName: Full=RING-type E3 ubiquitin transferase MARCHF8 {ECO:0000305};
GN Name=marchf8; Synonyms=march8; ORFNames=TNeu072c23.1;
OS Xenopus tropicalis (Western clawed frog) (Silurana tropicalis).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Silurana.
OX NCBI_TaxID=8364;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Neurula;
RG Sanger Xenopus tropicalis EST/cDNA project;
RL Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases.
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Embryo;
RG NIH - Xenopus Gene Collection (XGC) project;
RL Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: E3 ubiquitin-protein ligase that mediates ubiquitination of
CC cd86 and MHC class II proteins, such as hla-dr alpha and beta, and
CC promotes their subsequent endocytosis and sorting to lysosomes via
CC multivesicular bodies. {ECO:0000250|UniProtKB:Q5T0T0}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine +
CC [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L-
CC cysteine + N(6)-ubiquitinyl-[acceptor protein]-L-lysine.;
CC EC=2.3.2.27;
CC -!- PATHWAY: Protein modification; protein ubiquitination.
CC -!- SUBCELLULAR LOCATION: Cytoplasmic vesicle membrane
CC {ECO:0000250|UniProtKB:Q5T0T0}; Multi-pass membrane protein
CC {ECO:0000255}. Lysosome membrane {ECO:0000250|UniProtKB:Q5T0T0}; Multi-
CC pass membrane protein {ECO:0000255}. Early endosome membrane
CC {ECO:0000250|UniProtKB:Q5T0T0}; Multi-pass membrane protein
CC {ECO:0000255}.
CC -!- DOMAIN: The RING-CH-type zinc finger domain is required for E3 ligase
CC activity. {ECO:0000255|PROSITE-ProRule:PRU00623}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAH74623.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR EMBL; CR760341; CAJ82358.1; -; mRNA.
DR EMBL; BC074623; AAH74623.1; ALT_INIT; mRNA.
DR RefSeq; NP_001004831.1; NM_001004831.1.
DR AlphaFoldDB; Q28IK8; -.
DR BMRB; Q28IK8; -.
DR STRING; 8364.ENSXETP00000061447; -.
DR PaxDb; Q28IK8; -.
DR DNASU; 448095; -.
DR GeneID; 448095; -.
DR KEGG; xtr:448095; -.
DR CTD; 220972; -.
DR Xenbase; XB-GENE-944304; marchf8.
DR eggNOG; KOG1609; Eukaryota.
DR HOGENOM; CLU_070599_0_1_1; -.
DR InParanoid; Q28IK8; -.
DR OrthoDB; 1222747at2759; -.
DR UniPathway; UPA00143; -.
DR Proteomes; UP000008143; Chromosome 7.
DR Proteomes; UP000790000; Unplaced.
DR GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR GO; GO:0031901; C:early endosome membrane; IBA:GO_Central.
DR GO; GO:0005768; C:endosome; ISS:UniProtKB.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0031902; C:late endosome membrane; IBA:GO_Central.
DR GO; GO:0005765; C:lysosomal membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005764; C:lysosome; ISS:UniProtKB.
DR GO; GO:0042287; F:MHC protein binding; IBA:GO_Central.
DR GO; GO:0061630; F:ubiquitin protein ligase activity; IBA:GO_Central.
DR GO; GO:0004842; F:ubiquitin-protein transferase activity; ISS:UniProtKB.
DR GO; GO:0008270; F:zinc ion binding; IEA:InterPro.
DR GO; GO:0002495; P:antigen processing and presentation of peptide antigen via MHC class II; IBA:GO_Central.
DR GO; GO:0006955; P:immune response; IBA:GO_Central.
DR GO; GO:0000209; P:protein polyubiquitination; IBA:GO_Central.
DR Gene3D; 3.30.40.10; -; 1.
DR InterPro; IPR001841; Znf_RING.
DR InterPro; IPR011016; Znf_RING-CH.
DR InterPro; IPR013083; Znf_RING/FYVE/PHD.
DR Pfam; PF12906; RINGv; 1.
DR SMART; SM00744; RINGv; 1.
DR PROSITE; PS51292; ZF_RING_CH; 1.
PE 2: Evidence at transcript level;
KW Cytoplasmic vesicle; Endosome; Immunity; Lysosome; Membrane; Metal-binding;
KW Reference proteome; Transferase; Transmembrane; Transmembrane helix;
KW Ubl conjugation pathway; Zinc; Zinc-finger.
FT CHAIN 1..264
FT /note="E3 ubiquitin-protein ligase MARCHF8"
FT /id="PRO_0000274373"
FT TRANSMEM 130..150
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 170..190
FT /note="Helical"
FT /evidence="ECO:0000255"
FT ZN_FING 45..106
FT /note="RING-CH-type"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00623"
FT REGION 15..47
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 53
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00623"
FT BINDING 56
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00623"
FT BINDING 70
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00623"
FT BINDING 72
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00623"
FT BINDING 80
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00623"
FT BINDING 83
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00623"
FT BINDING 96
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00623"
FT BINDING 99
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00623"
SQ SEQUENCE 264 AA; 30054 MW; 83713D76A5AE642E CRC64;
MHSCWKMKLQ NEKTLGHSVS RSSNISKAGS PTSVSAPSSF PRTSVTPSSQ DICRICHCEG
DDESPLITPC HCTGSLHFVH QACLQQWIKS SDTRCCELCK FEFIMETKLK PLRKWEKLQM
TASERRKIMC SVTFHVIAIT CVVWSLYVLI DRTAEEIKMG QNNGILEWPF WTKLVVVAIG
FTGGLLFMYV QCKVYVQLWK RLKAYNRVIY VQNCPETCKK KIFEKSVIIE PNLESKEALG
IHHSDTNSSY YTEPEDCGAA ILQV
