6NXB

ECAII IN COMPLEX WITH CITRATE AT PH 7

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	333	35586.9	4	UniProt (P00805) Pfam (PF00710) Pfam (PF17763)	Escherichia coli (strain K12)	L-asparaginase II,L-ASNase II,L-asparagine amidohydrolase II
2	E, G, H, I, J (A, B, C, D)	CITRIC ACID	non-polymer		192.1	5	Chemie (CIT)
3	F (A)	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
4	K, L, M, N (A, B, C, D)	water	water		18.0	1307	Chemie (HOH)

Sequence modifications

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

PDB	External Database	Details
Met -6	-	initiating methionine
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	142347.5
Non-Polymers*	Number of molecules	6
	Total formula weight	1052.7
All*	Total formula weight	143400.2

*Water molecules are not included.