4Q2X

Crystal structure of Arginyl-tRNA synthetase complexed with L-canavanine

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, cytoplasmic	polymer	607	69347.7	2	UniProt (P54136) Pfam (PF03485) Pfam (PF00750) Pfam (PF05746)	Homo sapiens (human)	Arginyl-tRNA synthetase, ArgRS
2	C, D (A, B)	L-CANAVANINE	non-polymer		176.2	2	Chemie (GGB)
3	E, F (A, B)	water	water		18.0	205	Chemie (HOH)

Sequence modifications

A, B: 1 - 588 (UniProt: P54136)

PDB	External Database	Details
His -18	-	expression tag
His -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
Ser -12	-	expression tag
Ser -11	-	expression tag
Gly -10	-	expression tag
Leu -9	-	expression tag
Val -8	-	expression tag
Pro -7	-	expression tag
Arg -6	-	expression tag
Gly -5	-	expression tag
Ser -4	-	expression tag
His -3	-	expression tag
Met -2	-	expression tag
Ala -1	-	expression tag
Ser 0	-	expression tag
Arg 438	His 438	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	138695.5
Non-Polymers*	Number of molecules	2
	Total formula weight	352.3
All*	Total formula weight	139047.8

*Water molecules are not included.