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STRUCTURE OF HUMAN CYSTATHIONINE BETA-SYNTHASE: A UNIQUE PYRIDOXAL 5'-PHOSPHATE DEPENDENT HEMEPROTEIN

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, E... (A, B, C, D, E...)	CYSTATHIONINE BETA-SYNTHASE	polymer	435	47520.1	6	UniProt (P35520) Pfam (PF00291)	Homo sapiens (human)	CYSTATHIONINE-BETA-SYNTHASE; SERINE SULFHYDRASE; BETA-THIONASE
2	G, I, K, M, O... (A, B, C, D, E...)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	6	Chemie (HEM)
3	H, J, L, N, P... (A, B, C, D, E...)	PYRIDOXAL-5'-PHOSPHATE	non-polymer		247.1	6	Chemie (PLP)
4	S, T, U, V, W... (A, B, C, D, E...)	water	water		18.0	154	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	285120.4
Non-Polymers*	Number of molecules	12
	Total formula weight	5181.8
All*	Total formula weight	290302.2

*Water molecules are not included.