ID   A28_CAMPS               Reviewed;         146 AA.
AC   P68558; Q8V2M7;
DT   23-NOV-2004, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   25-MAY-2022, entry version 51.
DE   RecName: Full=Envelope protein A28 homolog;
DE   AltName: Full=Protein CMP145;
GN   OrderedLocusNames=CMP145L;
OS   Camelpox virus (strain CMS).
OC   Viruses; Varidnaviria; Bamfordvirae; Nucleocytoviricota; Pokkesviricetes;
OC   Chitovirales; Poxviridae; Chordopoxvirinae; Orthopoxvirus.
OX   NCBI_TaxID=203172;
OH   NCBI_TaxID=9836; Camelus.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=11907336; DOI=10.1099/0022-1317-83-4-855;
RA   Gubser C., Smith G.L.;
RT   "The sequence of camelpox virus shows it is most closely related to variola
RT   virus, the cause of smallpox.";
RL   J. Gen. Virol. 83:855-872(2002).
CC   -!- FUNCTION: Envelope protein required for virus entry into host cell and
CC       for cell-cell fusion (syncytium formation). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Virion membrane {ECO:0000305}; Single-pass type
CC       II membrane protein {ECO:0000305}. Note=Component of the intracellular
CC       mature virion (IMV) membrane. {ECO:0000250}.
CC   -!- PTM: Contains two intramolecular disulfide bonds. They are created by
CC       the viral disulfide bond formation pathway, a poxvirus-specific pathway
CC       that operates on the cytoplasmic side of the MV membranes (By
CC       similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the poxviridae A28 protein family.
CC       {ECO:0000305}.
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DR   EMBL; AY009089; AAG37639.1; -; Genomic_DNA.
DR   Proteomes; UP000107153; Genome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0019031; C:viral envelope; IEA:UniProtKB-KW.
DR   GO; GO:0055036; C:virion membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0039663; P:membrane fusion involved in viral entry into host cell; IEA:UniProtKB-KW.
DR   GO; GO:0046718; P:viral entry into host cell; IEA:UniProtKB-KW.
DR   InterPro; IPR007664; Poxvirus_A28.
DR   Pfam; PF04584; Pox_A28; 1.
PE   3: Inferred from homology;
KW   Disulfide bond; Fusion of virus membrane with host membrane; Late protein;
KW   Membrane; Signal-anchor; Transmembrane; Transmembrane helix;
KW   Viral envelope protein; Viral penetration into host cytoplasm; Virion;
KW   Virus entry into host cell.
FT   CHAIN           1..146
FT                   /note="Envelope protein A28 homolog"
FT                   /id="PRO_0000099286"
FT   TRANSMEM        1..21
FT                   /note="Helical; Signal-anchor for type II membrane protein"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        22..146
FT                   /note="Virion surface"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   146 AA;  16210 MW;  B8983298D755216B CRC64;
     MNSLSIFFIV VATAAVCLLF IQGYSIYENY GNIKEFNATH AALEYSKSIG GTPALDRRVQ
     DVNDTISDVK QKWRCVAYPG NGFVSASIFG FQAEVGPNNT RSIRKFNTMA QCIDFTFSDV
     INIDIYNPCV APNINNVECQ FLKSVL