ID   MATRX_PI4HB             Reviewed;         382 AA.
AC   P27020;
DT   01-AUG-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1992, sequence version 1.
DT   03-AUG-2022, entry version 56.
DE   RecName: Full=Matrix protein;
GN   Name=M;
OS   Human parainfluenza 4b virus (strain 68-333) (HPIV-4b).
OC   Viruses; Riboviria; Orthornavirae; Negarnaviricota; Haploviricotina;
OC   Monjiviricetes; Mononegavirales; Paramyxoviridae; Rubulavirinae;
OC   Orthorubulavirus; Human orthorubulavirus 4.
OX   NCBI_TaxID=11227;
OH   NCBI_TaxID=9606; Homo sapiens (Human).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=1654379; DOI=10.1099/0022-1317-72-9-2283;
RA   Kondo K., Fujii M., Nakamura T., Bando H., Kawano M., Tsurudome M.,
RA   Komada H., Kusakawa S., Nishio M., Ito Y.;
RT   "Sequence characterization of the matrix protein genes of parainfluenza
RT   virus types 4A and 4B.";
RL   J. Gen. Virol. 72:2283-2287(1991).
CC   -!- FUNCTION: The M protein has a crucial role in virus assembly and
CC       interacts with the RNP complex as well as with the viral membrane.
CC   -!- SUBCELLULAR LOCATION: Virion {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the morbillivirus/respirovirus/rubulavirus M
CC       protein family. {ECO:0000305}.
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DR   EMBL; D10242; BAA01087.1; -; mRNA.
DR   PIR; JQ1291; JQ1291.
DR   SMR; P27020; -.
DR   PRIDE; P27020; -.
DR   GO; GO:0019031; C:viral envelope; IEA:UniProtKB-KW.
DR   GO; GO:0039660; F:structural constituent of virion; IEA:UniProtKB-KW.
DR   GO; GO:0019068; P:virion assembly; IEA:InterPro.
DR   Gene3D; 2.70.20.50; -; 1.
DR   Gene3D; 2.70.20.60; -; 1.
DR   InterPro; IPR000982; Matrix.
DR   InterPro; IPR042539; Matrix_C.
DR   InterPro; IPR042540; Matrix_N.
DR   Pfam; PF00661; Matrix; 1.
PE   2: Evidence at transcript level;
KW   Viral envelope protein; Viral matrix protein; Virion.
FT   CHAIN           1..382
FT                   /note="Matrix protein"
FT                   /id="PRO_0000142768"
SQ   SEQUENCE   382 AA;  43027 MW;  9B4CC86390E18A18 CRC64;
     MAPTQSKVKI HNLAEAHEKV LRAFPIEVEQ NSEGNKLLVK QIRIRTLGHA DHSNDSICFL
     NTYGFIKEAV SQTEFMRAGQ RPESKNTLTA CMLPFGPGPN IGSPQKMLEY AEDIKIHVRK
     TAGCKEQIVF SLDRTPQVFR GFQFPRDRYV CVPSDKYIKS PGKLVAGPNY CYTITFLSLT
     FCPSSQKFKV PRPILNFRST RMRGIHLEII MKITCSENSP IRKTLITDDP ENGPKASVWI
     HLCNLYKGRN PIKVYDEAYF AEKCKQMLLS VGISDLWGPT IAVHANGKIP KSASLYFNSR
     GWALHPIADA SPTMAKQLWS IGCEIIEVNA ILQGSDYSAL VDHPDVIYRK IRIDPAKKQY
     AHSKWNPFKK AISMPDLTGI SI