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GLYC_PIRVV
ID   GLYC_PIRVV              Reviewed;         510 AA.
AC   Q8B119;
DT   20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 65.
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   Pirital mammarenavirus (isolate Rat/Venezuela/VAV-488/1995) (PIRV).
OC   Viruses; Riboviria; Orthornavirae; Negarnaviricota; Polyploviricotina;
OC   Ellioviricetes; Bunyavirales; Arenaviridae; Mammarenavirus.
OX   NCBI_TaxID=49891;
OH   NCBI_TaxID=134742; Sigmodon alstoni.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=12504568; DOI=10.1006/viro.2002.1695;
RA   Archer A.M., Rico-Hesse R.;
RT   "High genetic divergence and recombination in Arenaviruses from the
RT   Americas.";
RL   Virology 304:274-281(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.
CC       {ECO:0000255|HAMAP-Rule:MF_04084}.
CC   -!- SUBUNIT: [Glycoprotein G1]: Homotetramer; disulfide-linked.
CC       {ECO:0000255|HAMAP-Rule:MF_04084}.
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; AF485262; AAN09946.1; -; Genomic_RNA.
DR   RefSeq; YP_025080.1; NC_005894.1.
DR   SMR; Q8B119; -.
DR   GeneID; 2845916; -.
DR   KEGG; vg:2845916; -.
DR   Proteomes; UP000009266; 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   3: Inferred from homology;
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; Reference proteome; Transmembrane;
KW   Transmembrane helix; 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..510
FT                   /note="Pre-glycoprotein polyprotein GP complex"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT                   /id="PRO_0000361616"
FT   CHAIN           2..58
FT                   /note="Stable signal peptide"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT                   /id="PRO_0000361617"
FT   CHAIN           59..275
FT                   /note="Glycoprotein G1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT                   /id="PRO_0000361618"
FT   CHAIN           276..510
FT                   /note="Glycoprotein G2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT                   /id="PRO_0000361619"
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..448
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   TRANSMEM        449..469
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   TOPO_DOM        470..510
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         471
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         473
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         479
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         483
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         491
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   BINDING         493
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            275..276
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        75
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        90
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        101
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        112
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        117
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        122
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        133
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        182
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        218
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        243
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        381
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        389
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        406
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   CARBOHYD        411
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        87..250
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        295..308
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        317..326
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
FT   DISULFID        380..401
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04084"
SQ   SEQUENCE   510 AA;  57732 MW;  5684152A37607ADF CRC64;
     MGQFITLMQS IPEALNMAFN VALVIVSLLC VTKGLINLWK CGIIQLLMFL ALAGRSCDGE
     YKIDRRHVLS HVEFNLTRMF DNLPQSCSIN NTHHYYKGPE NTTWGVELTL TNTSVMNRSD
     ENVTSIRSLG FGNITNCDKT GEAGHTLKWL LNELHFTVLH VTRHIGALCR TTAGAGLLIQ
     YNLTTSDKGG EVGRHLIASL AQIIGDNKAA WVGKCYNNCT SSGKCSLTNC EGGTHYKFLV
     IQNTTWPNHC SYSPMSTVRM IIQKTAYSSV SRKLLGFFTW DISDSSGQHV PGGYCLEQWA
     IVWAGIKCFD NSVMAKCNKD HNEEFCDTMR LFDFNQNAIK TLQLNVENSL NLMKKSINGL
     ISDSLVIRNS LKQLAKIPYC NYTKFWYVND TITGKHSLPQ CWLVSNGSYL NETHFKNEWL
     WESQKLYNDM LLKEYEERQG NTPLALADLC FWSLVFFTTT VFFQLIGIPT HRHLIGEGCP
     KPHRLTSNSL CSCGFYKIPK KPFRWVRKGK
 
 
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