1SAZ

Membership in the ASKHA Superfamily: Enzymological Properties and Crystal Structure of Butyrate Kinase 2 from Thermotoga maritima

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Probable butyrate kinase 2	polymer	381	43475.0	1	UniProt (Q9X278) Pfam (PF00871)	Thermotoga maritima	BK 2, Branched-chain carboxylic acid kinase 2
2	B (A)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
3	C (A)	PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER	non-polymer		505.2	1	Chemie (ACP)
4	D, E, F, G (A)	FORMIC ACID	non-polymer		46.0	4	Chemie (FMT)
5	H (A)	water	water		18.0	63	Chemie (HOH)

Sequence modifications

A: 1 - 375 (UniProt: Q9X278)

PDB	External Database	Details
Mse 1	Met 1	modified residue
Mse 24	Met 24	modified residue
Mse 27	Met 27	modified residue
Mse 92	Met 92	modified residue
Mse 135	Met 135	modified residue
Mse 168	Met 168	modified residue
Mse 169	Met 169	modified residue
Mse 176	Met 176	modified residue
Mse 183	Met 183	modified residue
Mse 237	Met 237	modified residue
Mse 277	Met 277	modified residue
Mse 288	Met 288	modified residue
His 376	-	expression tag
His 377	-	expression tag
His 378	-	expression tag
His 379	-	expression tag
His 380	-	expression tag
His 381	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	43475.0
Non-Polymers*	Number of molecules	6
	Total formula weight	712.3
All*	Total formula weight	44187.3

*Water molecules are not included.