1YNI

Crystal Structure of N-Succinylarginine Dihydrolase, AstB, bound to Substrate and Product, an Enzyme from the Arginine Catabolic Pathway of Escherichia coli

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)	Succinylarginine Dihydrolase	polymer	458	50539.5	4	UniProt (P76216) Pfam (PF04996)	Escherichia coli	N-Succinylarginine Dihydrolase
2	E, G, I, K (A, B, C, D)	POTASSIUM ION	non-polymer		39.1	4	Chemie (K)
3	F, H, J, L (A, B, C, D)	N~2~-(3-CARBOXYPROPANOYL)-L-ARGININE	non-polymer		274.3	4	Chemie (SUG)
4	M, N, O, P (A, B, C, D)	water	water		18.0	567	Chemie (HOH)

Sequence modifications

A, B, C, D: 2 - 447 (UniProt: P76216)

PDB	External Database	Details
Met -10	-	expression tag
Gly -9	-	expression tag
Ser -8	-	expression tag
Ser -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
Gly 0	-	expression tag
Ser 1	-	expression tag
Ser 365	Cys 365	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	202158.0
Non-Polymers*	Number of molecules	8
	Total formula weight	1253.5
All*	Total formula weight	203411.5

*Water molecules are not included.