5CQE

2.1 Angstrom resolution crystal structure of matrix protein 1 (M1; residues 1-164) from Influenza A virus (A/Puerto Rico/8/34(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 (A, B)	Matrix protein 1	polymer	188	20952.0	2	UniProt (P03485) Pfam (PF00598)	Influenza A virus (strain A/Puerto Rico/8/1934 H1N1)	M1
2	C, D, G (A, B)	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
3	E (A)	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		122.1	1	Chemie (TRS)
4	F (A)	1,2-ETHANEDIOL	non-polymer		62.1	1	Chemie (EDO)
5	H (B)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	1	Chemie (PEG)
6	I, J (A, B)	water	water		18.0	90	Chemie (HOH)

Sequence modifications

A, B: 1 - 164 (UniProt: P03485)

PDB	External Database	Details
Met -23	-	expression tag
His -22	-	expression tag
His -21	-	expression tag
His -20	-	expression tag
His -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
Ser -16	-	expression tag
Ser -15	-	expression tag
Gly -14	-	expression tag
Val -13	-	expression tag
Asp -12	-	expression tag
Leu -11	-	expression tag
Gly -10	-	expression tag
Thr -9	-	expression tag
Glu -8	-	expression tag
Asn -7	-	expression tag
Leu -6	-	expression tag
Tyr -5	-	expression tag
Phe -4	-	expression tag
Gln -3	-	expression tag
Ser -2	-	expression tag
Asn -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	41904.1
Non-Polymers*	Number of molecules	6
	Total formula weight	396.7
All*	Total formula weight	42300.7

*Water molecules are not included.