1D2R

2.9 A CRYSTAL STRUCTURE OF LIGAND-FREE TRYPTOPHANYL-TRNA SYNTHETASE: DOMAIN MOVEMENTS FRAGMENT THE ADENINE NUCLEOTIDE BINDING SITE.

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, E...	PROTEIN (TRYPTOPHANYL TRNA SYNTHETASE)	polymer	326	36751.1	6	UniProt (P00953) Pfam (PF00579) In PDB	Geobacillus stearothermophilus	TRPRS

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	220506.5
All*	Total formula weight	220506.5

*Water molecules are not included.