4AVQ

Influenza strain pH1N1 2009 polymerase subunit PA endonuclease

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	POLYMERASE PA	polymer	204	23939.3	4	UniProt (C3W5S0) In PDB	INFLUENZA A VIRUS
2	A, B, C, D	MANGANESE (II) ION	non-polymer		54.9	4	Chemie (MN)
3	A, B, C, D	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
4		water	water		18.0	170	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 198 (UniProt: C3W5S0)

PDB	External Database	Details
Met -5	-	expression tag
Gly -4	-	expression tag
Ser -3	-	expression tag
Gly -2	-	expression tag
Met -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	95757.2
Non-Polymers*	Number of molecules	8
	Total formula weight	317.0
All*	Total formula weight	96074.1

*Water molecules are not included.