5B1I

Crystal structure of K42A mutant of cystathionine beta-synthase from Lactobacillus plantarum in a complex with L-methionine

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...	Cystathionine beta-synthase	polymer	311	33250.8	8	UniProt (F9UT54) Pfam (PF00291) In PDB	Lactobacillus plantarum WCFS1
2	G, H, A, B, C...	N-[(3-HYDROXY-2-METHYL-5-{[(TRIHYDROXYPHOSPHORANYL)OXY]METHYL}PYRIDIN-4-YL)METHYLENE]METHIONINE	non-polymer		378.3	8	Chemie (AA5)
3	G, H, A, B, C...	SULFATE ION	non-polymer		96.1	16	Chemie (SO4)

Sequence modifications

A, B, C, D, E, F, G, H: 1 - 303 (UniProt: F9UT54)

PDB	External Database	Details
Ala 42	Lys 42	engineered mutation
Leu 304	-	expression tag
Glu 305	-	expression tag
His 306	-	expression tag
His 307	-	expression tag
His 308	-	expression tag
His 309	-	expression tag
His 310	-	expression tag
His 311	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	266006.3
Non-Polymers*	Number of molecules	24
	Total formula weight	4563.7
All*	Total formula weight	270570.0

*Water molecules are not included.