3S1T

Structure of the regulatory domain of aspartokinase (Rv3709c; AK-beta) in complex with threonine from Mycobacterium tuberculosis

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Aspartokinase	polymer	181	19364.8	2	UniProt (P0A4Z8) Pfam (PF01842) Pfam (PF22468) UniProt (by SIFTS) (P9WPX3) In PDB	Mycobacterium tuberculosis	Aspartate kinase, ASK
2	C	Aspartokinase	polymer	11	1138.3	1	UniProt (P0A4Z8) UniProt (by SIFTS) (P9WPX3) In PDB	Mycobacterium tuberculosis
3	A, B	THREONINE	non-polymer		119.1	2	Chemie (THR)
4	A, B	SULFATE ION	non-polymer		96.1	7	Chemie (SO4)
5		water	water		18.0	219	Chemie (HOH)

Sequence modifications

A, B: 2 - 172 (UniProt: P0A4Z8)

PDB	External Database	Details
Met 0	-	expression tag
Ser 1	-	expression tag
Leu 173	-	expression tag
Glu 174	-	expression tag
His 175	-	expression tag
His 176	-	expression tag
His 177	-	expression tag
His 178	-	expression tag
His 179	-	expression tag
His 180	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	39867.9
Non-Polymers*	Number of molecules	9
	Total formula weight	910.7
All*	Total formula weight	40778.5

*Water molecules are not included.