ID   VME1_BCRP3              Reviewed;         221 AA.
AC   Q3I5J2;
DT   22-NOV-2005, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 70.
DE   RecName: Full=Membrane protein {ECO:0000255|HAMAP-Rule:MF_04202};
DE            Short=M protein {ECO:0000255|HAMAP-Rule:MF_04202};
DE   AltName: Full=E1 glycoprotein {ECO:0000255|HAMAP-Rule:MF_04202};
DE   AltName: Full=Matrix glycoprotein {ECO:0000255|HAMAP-Rule:MF_04202};
DE   AltName: Full=Membrane glycoprotein {ECO:0000255|HAMAP-Rule:MF_04202};
GN   Name=M {ECO:0000255|HAMAP-Rule:MF_04202}; ORFNames=5;
OS   Bat coronavirus Rp3/2004 (BtCoV/Rp3/2004) (SARS-like coronavirus Rp3).
OC   Viruses; Riboviria; Orthornavirae; Pisuviricota; Pisoniviricetes;
OC   Nidovirales; Cornidovirineae; Coronaviridae; Orthocoronavirinae;
OC   Betacoronavirus; Sarbecovirus.
OX   NCBI_TaxID=349344;
OH   NCBI_TaxID=59479; Rhinolophus ferrumequinum (Greater horseshoe bat).
OH   NCBI_TaxID=196889; Rhinolophus macrotis (Big-eared horseshoe bat).
OH   NCBI_TaxID=188571; Rhinolophus pearsonii.
OH   NCBI_TaxID=89399; Rhinolophus sinicus (Chinese rufous horseshoe bat).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=16195424; DOI=10.1126/science.1118391;
RA   Li W., Shi Z., Yu M., Ren W., Smith C., Epstein J.H., Wang H., Crameri G.,
RA   Hu Z., Zhang H., Zhang J., McEachern J., Field H., Daszak P., Eaton B.T.,
RA   Zhang S., Wang L.F.;
RT   "Bats are natural reservoirs of SARS-like coronaviruses.";
RL   Science 310:676-679(2005).
CC   -!- FUNCTION: Component of the viral envelope that plays a central role in
CC       virus morphogenesis and assembly via its interactions with other viral
CC       proteins. {ECO:0000255|HAMAP-Rule:MF_04202, ECO:0000255|PROSITE-
CC       ProRule:PRU01275}.
CC   -!- SUBUNIT: Homomultimer. Interacts with envelope E protein in the budding
CC       compartment of the host cell, which is located between endoplasmic
CC       reticulum and the Golgi complex. Forms a complex with HE and S
CC       proteins. Interacts with nucleocapsid N protein. This interaction
CC       probably participates in RNA packaging into the virus.
CC       {ECO:0000255|HAMAP-Rule:MF_04202, ECO:0000255|PROSITE-
CC       ProRule:PRU01275}.
CC   -!- SUBCELLULAR LOCATION: Virion membrane {ECO:0000255|HAMAP-
CC       Rule:MF_04202}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_04202}. Host Golgi apparatus membrane {ECO:0000255|HAMAP-
CC       Rule:MF_04202}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_04202}. Note=Largely embedded in the lipid bilayer.
CC       {ECO:0000255|HAMAP-Rule:MF_04202}.
CC   -!- MISCELLANEOUS: Bat coronavirus rp3 is highly similar to SARS-CoV (SARS-
CC       like).
CC   -!- SIMILARITY: Belongs to the betacoronaviruses M protein family.
CC       {ECO:0000255|HAMAP-Rule:MF_04202}.
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DR   EMBL; DQ071615; AAZ67055.1; -; Genomic_RNA.
DR   Proteomes; UP000006570; Genome.
DR   GO; GO:0044178; C:host cell Golgi 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:0039660; F:structural constituent of virion; IEA:UniProtKB-UniRule.
DR   CDD; cd21569; SARS-like-CoV_M; 1.
DR   HAMAP; MF_04202; BETA_CORONA_M; 1.
DR   InterPro; IPR002574; M_CoV.
DR   InterPro; IPR044361; M_SARS-like-CoV.
DR   Pfam; PF01635; CoV_M; 1.
DR   PROSITE; PS51927; COV_M; 1.
PE   3: Inferred from homology;
KW   Glycoprotein; Host Golgi apparatus; Host membrane; Host-virus interaction;
KW   Membrane; Transmembrane; Transmembrane helix; Viral envelope protein;
KW   Viral immunoevasion; Viral matrix protein; Virion.
FT   CHAIN           1..221
FT                   /note="Membrane protein"
FT                   /id="PRO_0000106034"
FT   TOPO_DOM        1..18
FT                   /note="Virion surface"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04202"
FT   TRANSMEM        19..39
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04202"
FT   TOPO_DOM        40..49
FT                   /note="Intravirion"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04202"
FT   TRANSMEM        50..70
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04202"
FT   TOPO_DOM        71..78
FT                   /note="Virion surface"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04202"
FT   TRANSMEM        79..99
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04202"
FT   TOPO_DOM        100..221
FT                   /note="Intravirion"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04202"
SQ   SEQUENCE   221 AA;  25119 MW;  04E76187E1CDBAB8 CRC64;
     MAENGTISVE ELKRLLEQWN LVIGFIFLAW IMLLQFAYSN RNRFLYIIKL VFLWLLWPVT
     LACFVLAAVY RINWVTGGIA IAMACIVGLM WLSYFVASFR LFARTRSMWS FNPETNILLN
     VPLRGTILTR PLMESELVIG AVIIRGHLRM AGHSLGRCDI KDLPKEITVA TSRTLSYYKL
     GASQRVGTDS GFAAYNRYRI GNYKLNTDHS GSNDNIALLV Q