2CJA

Crystal structure of Methanosarcina barkeri seryl-tRNA synthetase complexed with ATP

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	SERYL-TRNA SYNTHETASE	polymer	522	60779.9	2	UniProt (Q46AN5) Pfam (PF18490) In PDB	METHANOSARCINA BARKERI
2	A, B	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3	A, B	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
4	A, B	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	2	Chemie (ATP)
5	B	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
6		water	water		18.0	452	Chemie (HOH)

Sequence modifications

A, B: -20 - -1 (PDB: 2CJA)
A, B: 1 - 502 (UniProt: Q46AN5)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	121559.8
Non-Polymers*	Number of molecules	8
	Total formula weight	1264.7
All*	Total formula weight	122824.5

*Water molecules are not included.