>5V8A_1|Chain A|Matrix protein 1|Influenza A virus (strain A/Wilson-Smith/1933 H1N1) (381518) MHHHHHHSLLTEVETYVLSIVPSGPLKAEIAQRLEDVFAGKNTDLEVLMEWLKTRPILSPLTKGILGFVFTLTVPSERGLQRRRFVQNALNGNRDPNNMDKAVKLYSKLKSEITFHGAKEIALSYSAGALASCMGLIYNRMGAVTTEVAFGLVCATCEQIADSQHRSHRQM