2C44

Crystal Structure of E. coli Tryptophanase

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)	TRYPTOPHANASE	polymer	471	52850.3	4	UniProt (Q8XB34) Pfam (PF01212) UniProt (by SIFTS) (P0A853)	ESCHERICHIA COLI	L-TRYPTOPHAN INDOLE-LYASE, TNASE
2	E, F, I, J, L... (A, B, C, D)	SULFATE ION	non-polymer		96.1	8	Chemie (SO4)
3	G, H, K, N, O... (A, B, C, D)	POTASSIUM ION	non-polymer		39.1	6	Chemie (K)
4	S, T, U, V (A, B, C, D)	water	water		18.0	518	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	211401.1
Non-Polymers*	Number of molecules	14
	Total formula weight	1003.1
All*	Total formula weight	212404.2

*Water molecules are not included.