ID P04888; PN Matrix protein; GN M; OS 696863; SL Nucleus Position: SL-0415; SL Nucleus Position: SL-0418; SL Comments: Virion membrane {ECO:0000250|UniProtKB:P03519}; Peripheral membrane protein {ECO:0000250|UniProtKB:P03519}. Host endomembrane system {ECO:0000250|UniProtKB:P03519}; Peripheral membrane protein {ECO:0000250|UniProtKB:P03519}. Host nucleus membrane {ECO:0000250|UniProtKB:P03519}; Peripheral membrane protein {ECO:0000250|UniProtKB:P03519}. DR UNIPROT: P04888; DR UNIPROT: Q91DS1; DR Pfam: PF06326; DE Function: Plays a major role in assembly and budding of virion, by recruiting cellular partners of the ESCRT complexes that play a key role in releasing the budding particle from the host membrane. Condensates the ribonucleocapsid core during virus assembly. {ECO:0000250|UniProtKB:P03519}. DE Reference Proteome: Yes; GO GO:0044200; GO GO:0016020; GO GO:0019031; GO GO:0055036; GO GO:0039660; GO GO:0039702; TP Membrane Topology: Peripheral; Source: UniProt - By Similarity {ECO:0000250|UniProtKB:P03519}; SQ MSTLRKLFGIKKSKGTPPTYEETLATAPVLMDTHDTHSHSLQWMRYHVELDVKLDTPLKTMSDLLGLLKNWDVDYKGSRN SQ KRRFYRLIMFRCALELKHVSGTYSVDGSALYSNKVQGSCYVPHRFGQMPPFKREIEVFRYPVHQHGYNGMVDLRMSICDL SQ NGEKIGLNLLKECQVAHPNHFQKYLEEVGLEAACSATGEWILDWTFPMPVDVVPRVPSLFMGD //