1K92

Crystal Structure of Uncomplexed E. coli Argininosuccinate Synthetase

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	ARGININOSUCCINATE SYNTHASE	polymer	455	50967.3	1	UniProt (P0A6E4) Pfam (PF00764) Pfam (PF20979) In PDB	Escherichia coli	CITRULLINE--ASPARTATE LIGASE; argininosuccinate synthetase;
2	A	SULFATE ION	non-polymer		96.1	5	Chemie (SO4)
3	A	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
4		water	water		18.0	495	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	6
	Total formula weight	572.4
All*	Total formula weight	51539.7

*Water molecules are not included.