5KR4

Directed Evolution of Transaminases By Ancestral Reconstruction. Using Old Proteins for New Chemistries

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	4-aminobutyrate transaminase	polymer	479	51917.8	2		Pseudomonas
2	C, G (A, B)	PYRIDOXAL-5'-PHOSPHATE	non-polymer		247.1	2	Chemie (PLP)
3	D, E, F (A)	1,2-ETHANEDIOL	non-polymer		62.1	3	Chemie (EDO)
4	H, I (A, B)	water	water		18.0	447	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	103835.6
Non-Polymers*	Number of molecules	5
	Total formula weight	680.5
All*	Total formula weight	104516.1

*Water molecules are not included.