ID   VEMP_WCPV               Reviewed;          75 AA.
AC   P0DTC4;
DT   22-APR-2020, integrated into UniProtKB/Swiss-Prot.
DT   22-APR-2020, sequence version 1.
DT   22-APR-2020, entry version 1.
DE   RecName: Full=Envelope small membrane protein {ECO:0000255|HAMAP-Rule:MF_04204};
DE            Short=E protein {ECO:0000255|HAMAP-Rule:MF_04204};
DE            Short=sM protein {ECO:0000255|HAMAP-Rule:MF_04204};
GN   Name=E {ECO:0000255|HAMAP-Rule:MF_04204}; ORFNames=4;
OS   Wuhan seafood market pneumonia virus.
OC   Viruses; Riboviria; Nidovirales; Cornidovirineae; Coronaviridae;
OC   Orthocoronavirinae; Betacoronavirus; unclassified Betacoronavirus.
OX   NCBI_TaxID=2697049;
RN   [1]
RA   Wu F., Zhao S., Yu B., Chen Y.-M., Wang W., Hu Y., Song Z.-G., Tao Z.-W.,
RA   Tian J.-H., Pei Y.-Y., Yuan M.L., Zhang Y.-L., Dai F.-H., Liu Y.,
RA   Wang Q.-M., Zheng J.-J., Xu L., Holmes E.C., Zhang Y.-Z.;
RT   "A novel coronavirus associated with a respiratory disease in Wuhan of
RT   Hubei province, China.";
RL   Submitted (JAN-2020) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Plays a central role in virus morphogenesis and assembly.
CC       Acts as a viroporin and self-assembles in host membranes forming
CC       pentameric protein-lipid pores that allow ion transport. Also plays a
CC       role in the induction of apoptosis. {ECO:0000255|HAMAP-Rule:MF_04204}.
CC   -!- SUBUNIT: Homopentamer. Interacts with membrane protein M in the budding
CC       compartment of the host cell, which is located between endoplasmic
CC       reticulum and the Golgi complex. Interacts with Nucleoprotein (By
CC       similarity). Interacts with the accessory proteins 3a and 7a. Interacts
CC       (via C-terminus) with human MPP5 (via PDZ domain); this inhibits the
CC       interaction between human MPP5 and human CRB3, and causes delayed tight
CC       junction formation and defective cell polarity (By similarity).
CC       {ECO:0000250|UniProtKB:P59637, ECO:0000255|HAMAP-Rule:MF_04204}.
CC   -!- SUBCELLULAR LOCATION: Host Golgi apparatus membrane {ECO:0000255|HAMAP-
CC       Rule:MF_04204}; Single-pass type III membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_04204}. Note=The cytoplasmic tail functions
CC       as a Golgi complex-targeting signal. {ECO:0000255|HAMAP-Rule:MF_04204}.
CC   -!- MISCELLANEOUS: nCoV is the prototype of the virus isolated during the
CC       severe coronavirus outbreak in originated in Wuhan in 2020.
CC       {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the betacoronaviruses E protein family.
CC       {ECO:0000255|HAMAP-Rule:MF_04204}.
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DR   EMBL; MN908947; QHD43418.1; -; Genomic_RNA.
DR   GO; GO:0044177; C:host cell Golgi apparatus; IEA:UniProtKB-UniRule.
DR   GO; GO:0044178; C:host cell Golgi membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0044662; P:disruption by virus of host cell membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0046760; P:viral budding from Golgi membrane; IEA:UniProtKB-UniRule.
DR   InterPro; IPR003873; NS3/E.
DR   Pfam; PF02723; NS3_envE; 1.
PE   3: Inferred from homology;
KW   Apoptosis; Host Golgi apparatus; Host membrane; Membrane; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..75
FT                   /note="Envelope small membrane protein"
FT                   /id="PRO_0000449651"
FT   TOPO_DOM        1..16
FT                   /note="Virion surface"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04204"
FT   TRANSMEM        17..37
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04204"
FT   TOPO_DOM        38..75
FT                   /note="Intravirion"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04204"
FT   MOTIF           72..75
FT                   /note="PDZ-binding; required for interaction with human
FT                   MPP5"
FT                   /evidence="ECO:0000250|UniProtKB:P59637"
SQ   SEQUENCE   75 AA;  8365 MW;  5C431BD2AA1B6B99 CRC64;