1KMN

HISTIDYL-TRNA SYNTHETASE COMPLEXED WITH HISTIDINOL 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, B, C, D (A, B, C, D)	HISTIDYL-TRNA SYNTHETASE	polymer	424	47085.3	4	UniProt (P60906) Pfam (PF00587) Pfam (PF03129)	Escherichia coli	HISTIDINE-TRNA LIGASE
2	E, G, I, K (A, B, C, D)	L-histidinol	non-polymer		142.2	4	Chemie (HSO)
3	F, H, J, L (A, B, C, D)	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	4	Chemie (ATP)
4	M, N, O, P (A, B, C, D)	water	water		18.0	24	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	188341.3
Non-Polymers*	Number of molecules	8
	Total formula weight	2597.4
All*	Total formula weight	190938.7

*Water molecules are not included.