>5V6G_1|Chains A, B, C, D|Matrix protein 1|Influenza A virus (strain A/Wilson-Smith/1933 H1N1) (381518) MHHHHHHSLLTEVETYVLSIVPSGPLKAEIAQRLEDVFAGKNTDLEVLMEWLKTRPILSPLTKGILGFVFTLTVPSERGLQRRRFVQNALNGNRDPNNMDKAVKLYSKLKSEITFHGAKEIALSYSAGALASCMGLIYNRMGAVTTEVAFGLVCATCEQIADSQHRSHRQM