4P7G

Rat apo-COMT, phosphate bound

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	Catechol O-methyltransferase	polymer	221	24772.4	4	UniProt (P22734) Pfam (PF01596) In PDB	Rattus norvegicus (Rat)
2	A, B, C, D	PHOSPHATE ION	non-polymer		95.0	4	Chemie (PO4)
3	A, B	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
4		water	water		18.0	96	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	99089.6
Non-Polymers*	Number of molecules	6
	Total formula weight	458.1
All*	Total formula weight	99547.7

*Water molecules are not included.