5YYM

Crystal structures of E.coli arginyl-trna synthetase (argrs) in complex with substrate Arg

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Arginine--tRNA ligase	polymer	586	65775.9	2	UniProt (P11875) Pfam (PF03485) Pfam (PF00750) Pfam (PF05746)	Escherichia coli (strain K12)	Arginyl-tRNA synthetase,ArgRS
2	C, D (A, B)	ARGININE	non-polymer		175.2	2	Chemie (ARG)
3	E, F (A, B)	water	water		18.0	487	Chemie (HOH)

Sequence modifications

A, B: 1 - 577 (UniProt: P11875)

PDB	External Database	Details
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
Gly -2	-	expression tag
Gly -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	131551.7
Non-Polymers*	Number of molecules	2
	Total formula weight	350.4
All*	Total formula weight	131902.1

*Water molecules are not included.