6SLH

Conformational flexibility within the small domain of human serine racemase.

This is a non-PDB format compatible entry.

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 (AAA, BBB, CCC, DDD)	Serine racemase	polymer	346	37684.0	4	UniProt (Q9GZT4) Pfam (PF00291)	Homo sapiens (Human)	D-serine ammonia-lyase,D-serine dehydratase,L-serine ammonia-lyase,L-serine dehydratase
2	E, F, N, O (AAA, BBB, CCC)	TRIETHYLENE GLYCOL	non-polymer		150.2	4	Chemie (PGE)
3	G, H, M, P, Q... (AAA, BBB, CCC, DDD)	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)
4	I, J, K, L, S... (AAA, DDD)	SODIUM ION	non-polymer		23.0	6	Chemie (NA)
5	U, V, W, X (AAA, BBB, CCC, DDD)	water	water		18.0	532	Chemie (HOH)

Sequence modifications

AAA, BBB, CCC, DDD: 1 - 340 (UniProt: Q9GZT4)

PDB	External Database	Details
Asp 2	Cys 2	engineered mutation
Asp 6	Cys 6	engineered mutation
His 341	-	expression tag
His 342	-	expression tag
His 343	-	expression tag
His 344	-	expression tag
His 345	-	expression tag
His 346	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	150735.9
Non-Polymers*	Number of molecules	16
	Total formula weight	884.5
All*	Total formula weight	151620.4

*Water molecules are not included.