1ADY

HISTIDYL-TRNA SYNTHETASE IN COMPLEX WITH HISTIDYL-ADENYLATE

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	HISTIDYL-TRNA SYNTHETASE	polymer	421	47125.9	4	UniProt (P56194) Pfam (PF13393) Pfam (PF03129) In PDB	Thermus thermophilus
2	A, B, C, D	SULFATE ION	non-polymer		96.1	4	Chemie (SO4)
3	A, B, C, D	HISTIDYL-ADENOSINE MONOPHOSPHATE	non-polymer		484.4	4	Chemie (HAM)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	188503.7
Non-Polymers*	Number of molecules	8
	Total formula weight	2321.7
All*	Total formula weight	190825.4

*Water molecules are not included.