1C74

Structure of the double mutant (K53,56M) of phospholipase A2

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	PHOSPHOLIPASE A2	polymer	123	13814.5	1	UniProt (P00593) Pfam (PF00068) In PDB	Bos taurus (cattle)
2	A	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
3		water	water		18.0	106	Chemie (HOH)

Sequence modifications

A: 1 - 123 (UniProt: P00593)

PDB	External Database	Details
Met 53	Lys 75	engineered mutation
Met 56	Lys 78	engineered mutation
Asn 122	Lys 144	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	13814.5
Non-Polymers*	Number of molecules	1
	Total formula weight	40.1
All*	Total formula weight	13854.6

*Water molecules are not included.