1MKS

CARBOXYLIC ESTER HYDROLASE, TRIGONAL FORM OF THE TRIPLE MUTANT

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	13777.5	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	77	Chemie (HOH)

Sequence modifications

A: 1 - 123 (UniProt: P00593)

PDB	External Database	Details
Phe 52	Tyr 74	engineered mutation
Phe 73	Tyr 95	engineered mutation
Asn 99	Asp 121	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	13777.5
Non-Polymers*	Number of molecules	1
	Total formula weight	40.1
All*	Total formula weight	13817.6

*Water molecules are not included.