3MD2

Crystal structure of the matrix protein 1 from influenza A virus (A/California/04/2009 (H1N1))

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D	matrix protein 1	polymer	157	17232.9	4	UniProt (C3W5Z1) Pfam (PF00598) UniProt (by SIFTS) (D3TEK8) In PDB	Influenza A virus
2		water	water		18.0	117	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	68931.7
All*	Total formula weight	68931.7

*Water molecules are not included.