1K97

Crystal Structure of E. coli Argininosuccinate Synthetase in complex with Aspartate and Citrulline

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	ARGININOSUCCINATE SYNTHASE	polymer	455	50967.3	1	UniProt (P0A6E4) Pfam (PF00764) Pfam (PF20979)	Escherichia coli	CITRULLINE--ASPARTATE LIGASE; argininosuccinate synthetase;
2	B (A)	ASPARTIC ACID	non-polymer		133.1	1	Chemie (ASP)
3	C (A)	CITRULLINE	non-polymer		175.2	1	Chemie (CIR)
4	D (A)	water	water		18.0	331	Chemie (HOH)

Sequence modifications

A: 1 - 446 (UniProt: P0A6E4)

PDB	External Database	Details
Ser 447	-	expression tag
Val 448	-	expression tag
Glu 449	-	expression tag
His 450	-	expression tag
His 451	-	expression tag
His 452	-	expression tag
His 453	-	expression tag
His 454	-	expression tag
His 455	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	50967.3
Non-Polymers*	Number of molecules	2
	Total formula weight	308.3
All*	Total formula weight	51275.6

*Water molecules are not included.