7ENT

Crystal structure of Mycobacterium tuberculosis tryptophanyl-tRNA synthetase complexed with Y-13 and ATP

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Tryptophan--tRNA ligase	polymer	344	37381.0	1	UniProt (A0A045IZS3) Pfam (PF00579) UniProt (by SIFTS) (P9WFT3) In PDB	Mycobacterium tuberculosis	Tryptophanyl-tRNA synthetase,TrpRS
2	A	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	1	Chemie (ATP)
3	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4	A	(5S)-2-(methylamino)-5-[(1R)-1-(4-methyl-1H-indol-3-yl)ethyl]-1,3-oxazol-4-one	non-polymer		271.3	1	Chemie (J9L)
5		water	water		18.0	71	Chemie (HOH)

Sequence modifications

A: 1 - 336 (UniProt: A0A045IZS3)

PDB	External Database	Details
Leu 337	-	expression tag
Glu 338	-	expression tag
His 339	-	expression tag
His 340	-	expression tag
His 341	-	expression tag
His 342	-	expression tag
His 343	-	expression tag
His 344	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	37381.0
Non-Polymers*	Number of molecules	3
	Total formula weight	802.8
All*	Total formula weight	38183.8

*Water molecules are not included.