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GLYC_MOBVC
ID   GLYC_MOBVC              Reviewed;         491 AA.
AC   Q2A069;
DT   20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT   04-APR-2006, sequence version 1.
DT   03-AUG-2022, entry version 60.
DE   RecName: Full=Pre-glycoprotein polyprotein GP complex {ECO:0000255|HAMAP-Rule:MF_04084};
DE            Short=Pre-GP-C {ECO:0000255|HAMAP-Rule:MF_04084};
DE   Contains:
DE     RecName: Full=Stable signal peptide {ECO:0000255|HAMAP-Rule:MF_04084};
DE              Short=SSP {ECO:0000255|HAMAP-Rule:MF_04084};
DE   Contains:
DE     RecName: Full=Glycoprotein G1 {ECO:0000255|HAMAP-Rule:MF_04084};
DE              Short=GP1 {ECO:0000255|HAMAP-Rule:MF_04084};
DE   Contains:
DE     RecName: Full=Glycoprotein G2 {ECO:0000255|HAMAP-Rule:MF_04084};
DE              Short=GP2 {ECO:0000255|HAMAP-Rule:MF_04084};
GN   Name=GPC {ECO:0000255|HAMAP-Rule:MF_04084}; Synonyms=GP-C;
OS   Mobala mammarenavirus (isolate Rat/Central African Republic/Acar 3080/1983)
OS   (MOBV).
OC   Viruses; Riboviria; Orthornavirae; Negarnaviricota; Polyploviricotina;
OC   Ellioviricetes; Bunyavirales; Arenaviridae; Mammarenavirus.
OX   NCBI_TaxID=55097;
OH   NCBI_TaxID=10111; Praomys (African soft-furred rats).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=16494913; DOI=10.1016/j.virol.2006.01.026;
RA   Emonet S., Lemasson J.J., Gonzalez J.P., de Lamballerie X., Charrel R.N.;
RT   "Phylogeny and evolution of old world arenaviruses.";
RL   Virology 350:251-257(2006).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=18602020; DOI=10.1016/j.mib.2008.06.001;
RA   Charrel R.N., de Lamballerie X., Emonet S.;
RT   "Phylogeny of the genus Arenavirus.";
RL   Curr. Opin. Microbiol. 11:362-368(2008).
RN   [3]
RP   FUNCTION, AND INTERACTION WITH HOST DAG1.
RX   PubMed=11967329; DOI=10.1128/jvi.76.10.5140-5146.2002;
RA   Spiropoulou C.F., Kunz S., Rollin P.E., Campbell K.P., Oldstone M.B.;
RT   "New World arenavirus clade C, but not clade A and B viruses, utilizes
RT   alpha-dystroglycan as its major receptor.";
RL   J. Virol. 76:5140-5146(2002).
CC   -!- FUNCTION: [Glycoprotein G2]: Class I viral fusion protein that directs
CC       fusion of viral and host endosomal membranes, leading to delivery of
CC       the nucleocapsid into the cytoplasm. Membrane fusion is mediated by
CC       irreversible conformational changes induced upon acidification in the
CC       endosome. {ECO:0000255|HAMAP-Rule:MF_04084}.
CC   -!- FUNCTION: Stable signal peptide (SSP): cleaved and functions as a
CC       signal peptide. In addition, it is also retained as the third component
CC       of the GP complex. The SSP is required for efficient glycoprotein
CC       expression, post-translational maturation cleavage of GP1 and GP2,
CC       glycoprotein transport to the cell surface plasma membrane, formation
CC       of infectious virus particles, and acid pH-dependent glycoprotein-
CC       mediated cell fusion. {ECO:0000255|HAMAP-Rule:MF_04084}.
CC   -!- FUNCTION: [Glycoprotein G1]: Interacts with the host receptor (By
CC       similarity). Mediates virus attachment to host receptor alpha-
CC       dystroglycan DAG1. This attachment induces virion internalization
CC       predominantly through clathrin- and caveolin-independent endocytosis
CC       (PubMed:11967329). {ECO:0000255|HAMAP-Rule:MF_04084,
CC       ECO:0000269|PubMed:11967329}.
CC   -!- SUBUNIT: [Glycoprotein G1]: Homotetramer; disulfide-linked (By
CC       similarity). Interacts with host DAG1 (PubMed:11967329).
CC       {ECO:0000255|HAMAP-Rule:MF_04084, ECO:0000269|PubMed:11967329}.
CC   -!- SUBUNIT: [Glycoprotein G2]: Homotetramer. GP2 homotetramers bind
CC       through ionic interactions with GP1 homotetramers to form the GP
CC       complex together with the stable signal peptide. The GP-C polyprotein
CC       interacts with the host protease MBTPS1/SKI-1 resulting in the
CC       polyprotein processing. {ECO:0000255|HAMAP-Rule:MF_04084}.
CC   -!- SUBCELLULAR LOCATION: [Glycoprotein G1]: Virion membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Host endoplasmic reticulum membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Host Golgi apparatus membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Host cell membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}.
CC   -!- SUBCELLULAR LOCATION: [Glycoprotein G2]: Virion membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Host endoplasmic reticulum membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Host Golgi apparatus membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Host cell membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Note=Binding to the stable signal
CC       peptide masks endogenous ER localization signals in the cytoplasmic
CC       domain of G2 to ensure that only the fully assembled, tripartite GP
CC       complex is transported for virion assembly. {ECO:0000255|HAMAP-
CC       Rule:MF_04084}.
CC   -!- SUBCELLULAR LOCATION: [Stable signal peptide]: Virion membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Host endoplasmic reticulum membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Host Golgi apparatus membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}. Host cell membrane
CC       {ECO:0000255|HAMAP-Rule:MF_04084}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04084}.
CC   -!- DOMAIN: The cytoplasmic domain of GP2 plays a role in ER location. It
CC       also contains a zinc-binding domain that allows SSP retention in the
CC       GPC complex by accepting a cysteine from SSP as the fourth ligand.
CC       {ECO:0000255|HAMAP-Rule:MF_04084}.
CC   -!- PTM: Specific enzymatic cleavages in vivo yield mature proteins. GP-C
CC       polyprotein is cleaved in the endoplasmic reticulum by the host
CC       protease MBTPS1. Only cleaved glycoprotein is incorporated into
CC       virions. {ECO:0000255|HAMAP-Rule:MF_04084}.
CC   -!- PTM: The SSP remains stably associated with the GP complex following
CC       cleavage by signal peptidase and plays crucial roles in the trafficking
CC       of GP through the secretory pathway. {ECO:0000255|HAMAP-Rule:MF_04084}.
CC   -!- SIMILARITY: Belongs to the arenaviridae GPC protein family.
CC       {ECO:0000255|HAMAP-Rule:MF_04084}.
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DR   EMBL; AY342390; AAQ75069.1; -; Genomic_RNA.
DR   RefSeq; YP_516226.1; NC_007903.1.
DR   SMR; Q2A069; -.
DR   GeneID; 5075845; -.
DR   KEGG; vg:5075845; -.
DR   Proteomes; UP000140987; Genome.
DR   GO; GO:0044167; C:host cell endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0044178; C:host cell Golgi membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0020002; C:host cell plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0019031; C:viral envelope; IEA:UniProtKB-UniRule.
DR   GO; GO:0055036; C:virion membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0039654; P:fusion of virus membrane with host endosome membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0019065; P:receptor-mediated endocytosis of virus by host cell; IEA:UniProtKB-UniRule.
DR   GO; GO:0019062; P:virion attachment to host cell; IEA:UniProtKB-UniRule.
DR   Gene3D; 2.20.28.180; -; 1.
DR   HAMAP; MF_04084; ARENA_GPC; 1.
DR   InterPro; IPR001535; Arena_glycoprot.
DR   InterPro; IPR043015; Arena_glycoprot_zinc-bd.
DR   Pfam; PF00798; Arena_glycoprot; 1.
DR   PIRSF; PIRSF004028; GPC_ArenaV; 1.
PE   1: Evidence at protein level;
KW   Disulfide bond; Fusion of virus membrane with host endosomal membrane;
KW   Fusion of virus membrane with host membrane; Glycoprotein;
KW   Host cell membrane; Host endoplasmic reticulum; Host Golgi apparatus;
KW   Host membrane; Host-virus interaction; Lipoprotein; Membrane;
KW   Metal-binding; Myristate; Transmembrane; Transmembrane helix;
KW   Viral attachment to host cell; Viral envelope protein;
KW   Viral penetration into host cytoplasm; Virion; Virus endocytosis by host;
KW   Virus entry into host cell; Zinc.
FT   INIT_MET        1
FT                   /note="Removed; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CHAIN           2..491
FT                   /note="Pre-glycoprotein polyprotein GP complex"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT                   /id="PRO_0000361604"
FT   CHAIN           2..58
FT                   /note="Stable signal peptide"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT                   /id="PRO_0000361605"
FT   CHAIN           59..259
FT                   /note="Glycoprotein G1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT                   /id="PRO_0000361606"
FT   CHAIN           260..491
FT                   /note="Glycoprotein G2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT                   /id="PRO_0000361607"
FT   TOPO_DOM        2..17
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   TRANSMEM        18..32
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   TOPO_DOM        33
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   TRANSMEM        34..53
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   TOPO_DOM        54..58
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   TOPO_DOM        59..432
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   TRANSMEM        433..453
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   TOPO_DOM        454..491
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         57
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         455
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         457
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         463
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         467
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         475
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         477
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   SITE            58..59
FT                   /note="Cleavage; by host signal peptidase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   SITE            259..260
FT                   /note="Cleavage; by host MBTPS1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   LIPID           2
FT                   /note="N-myristoyl glycine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        78
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        88
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        98
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        108
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        118
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        166
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        224
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        365
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        373
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        390
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        395
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        85..231
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        117..154
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        179..212
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        279..292
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        301..310
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        364..385
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
SQ   SEQUENCE   491 AA;  56233 MW;  E709E381B3E77FD9 CRC64;
     MGQIVTFFQE VPHIIEEVMN IVLITLSLLA ILKGIYNVMT CGLIGLLTFL FLCGKSCSTI
     YKDNYRLMQL NLDMSGLNAT MPLSCSKNNS HHYIQVFNTT GLELTLTNDS LIGHKWCNLS
     DAHKKDTYDH TLMSIISTFH LSIPNFNHYE AMACDFNGGK ISIQYNLSHS SETDAMNHCG
     TVANGVLEVF RRMTWCTHCD TPLGASIAGF NCVRTSYKYL IIQNTTWEDH CTMSRPSPMG
     YLSLLSQRAR EIYISRRLMG TFTWTLSDSE GNDLPGGYCL QRWMLIEAEM KCFGNTAVAK
     CNQQHDEEFC DMLRLFDFNK EAIHRLRVEA EKSISLINKA VNSLINDQLI MRNHLRDIMG
     IPYCNYSRFW YLNDTRSGRT SLPKCWMVSN GSYLNETHFS SDIEQEANNM ITEMLRKEYE
     RRQGTTPLGL VDLFVFSTSF YLISVFLHLI KIPTHRHLVG KPCPKPHRLN HMGVCSCGLY
     KQPGLPTKWK R
 
 
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