1VBM

Crystal structure of the Escherichia coli tyrosyl-tRNA synthetase complexed with Tyr-AMS

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)	Tyrosyl-tRNA synthetase	polymer	318	35697.4	2	UniProt (P00951) Pfam (PF00579) UniProt (by SIFTS) (P0AGJ9)	Escherichia coli	Tyrosine--tRNA ligase, TyrRS
2	C, D, F, G (A, B)	SULFATE ION	non-polymer		96.1	4	Chemie (SO4)
3	E, H (A, B)	5'-O-[N-(L-TYROSYL)SULFAMOYL]ADENOSINE	non-polymer		509.5	2	Chemie (YSA)
4	I, J (A, B)	water	water		18.0	88	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	71394.7
Non-Polymers*	Number of molecules	6
	Total formula weight	1403.2
All*	Total formula weight	72797.9

*Water molecules are not included.