3C20

Crystal Structure of Threonine-sensitive Aspartokinase from Methanococcus jannaschii with L-aspartate

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)	Probable aspartokinase	polymer	473	51457.1	2	UniProt (Q57991) Pfam (PF00696) Pfam (PF01842) Pfam (PF22468)	Methanocaldococcus jannaschii	Aspartate kinase
2	C, E (A, B)	ASPARTIC ACID	non-polymer		133.1	2	Chemie (ASP)
3	D, F (A, B)	FORMIC ACID	non-polymer		46.0	2	Chemie (FMT)
4	G, H (A, B)	water	water		18.0	13	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	102914.3
Non-Polymers*	Number of molecules	4
	Total formula weight	358.3
All*	Total formula weight	103272.5

*Water molecules are not included.