2X1L

Crystal structure of Mycobacterium smegmatis methionyl-tRNA synthetase in complex with methionine and adenosine

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 (A, B, C)	METHIONYL-TRNA SYNTHETASE	polymer	524	59175.2	3	UniProt (A0R3E2) Pfam (PF09334) Pfam (PF19303)	MYCOBACTERIUM SMEGMATIS
2	D, H, L (A, B, C)	METHIONINE	non-polymer		149.2	3	Chemie (MET)
3	E, I, M (A, B, C)	ADENOSINE	non-polymer		267.2	3	Chemie (ADN)
4	F, J, N (A, B, C)	3-CYCLOHEXYL-1-PROPYLSULFONIC ACID	non-polymer		221.3	3	Chemie (CXS)
5	G, K, O (A, B, C)	DIHYDROGENPHOSPHATE ION	non-polymer		97.0	3	Chemie (2HP)
6	P, Q, R (A, B, C)	water	water		18.0	484	Chemie (HOH)

Sequence modifications

A, B, C: 2 - 515 (UniProt: A0R3E2)

PDB	External Database	Details
Met -8	-	expression tag
Ala -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
Gly 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	177525.6
Non-Polymers*	Number of molecules	12
	Total formula weight	2204.3
All*	Total formula weight	179729.9

*Water molecules are not included.