4ZQQ

Apo form of influenza strain H1N1 polymerase acidic subunit N-terminal region

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Polymerase acidic protein,Polymerase acidic protein	polymer	191	22300.5	1	UniProt (P03433)	Influenza A virus (strain A/Puerto Rico/8/1934 H1N1)	RNA-directed RNA polymerase subunit P2
2	B, C (A)	MANGANESE (II) ION	non-polymer		54.9	2	Chemie (MN)
3	D (A)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
4	E (A)	water	water		18.0	237	Chemie (HOH)

Sequence modifications

A: 1 - 50 (UniProt: P03433)

PDB	External Database	Details
Gly -4	-	expression tag
Pro -3	-	expression tag
Leu -2	-	expression tag
Gly -1	-	expression tag
Ser 0	-	expression tag

A: 73 - 197 (UniProt: P03433)

PDB	External Database	Details
Ala 51	-	linker
Ser 52	-	linker
Ala 198	-	expression tag
Ala 199	-	expression tag
Glu 200	-	expression tag
Leu 201	-	expression tag
Ala 202	-	expression tag
Leu 203	-	expression tag
Val 204	-	expression tag
Pro 205	-	expression tag
Arg 206	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	22300.5
Non-Polymers*	Number of molecules	3
	Total formula weight	205.9
All*	Total formula weight	22506.4

*Water molecules are not included.