1EA3:
reference: Combined results from solution studies on intact influenza virus M1 protein and from a new crystal form of its N-terminal domain show that M1 is an elongated monomer., Arzt S, Baudin F, Barge A, Timmins P, Burmeister WP, Ruigrok RW, Virology 2001 Jan 20;279(2):439-46. PMID: 11162800

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