6PAB

E. coli L-asparaginase II in complex with L-Asp at pH 7.0

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 (A, B, C, D)	L-asparaginase 2	polymer	334	35702.0	4	UniProt (P00805) Pfam (PF00710) Pfam (PF17763)	Escherichia coli (strain K12)	L-asparaginase II,L-ASNase II,L-asparagine amidohydrolase II
2	E, H, I, J, K (A, B, C, D)	ASPARTIC ACID	non-polymer		133.1	5	Chemie (ASP)
3	F, L (A, D)	CITRIC ACID	non-polymer		192.1	2	Chemie (CIT)
4	G (A)	IMIDAZOLE	non-polymer		69.1	1	Chemie (IMD)
5	M, N, O, P (A, B, C, D)	water	water		18.0	1481	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 326 (UniProt: P00805)

PDB	External Database	Details
Met -7	-	initiating methionine
Asp -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	142807.9
Non-Polymers*	Number of molecules	8
	Total formula weight	1118.8
All*	Total formula weight	143926.7

*Water molecules are not included.