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	Probable aspartokinase	polymer	473	51457.1	2	UniProt (Q57991) Pfam (PF00696) Pfam (PF01842) Pfam (PF22468) In PDB	Methanocaldococcus jannaschii	Aspartate kinase
2	A, B	ASPARTIC ACID	non-polymer		133.1	2	Chemie (ASP)
3	A, B	FORMIC ACID	non-polymer		46.0	2	Chemie (FMT)
4		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.