2R8O

Transketolase from E. coli in complex with substrate D-xylulose-5-phosphate

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Transketolase 1	polymer	669	73121.5	2	UniProt (P27302) Pfam (PF00456) Pfam (PF02779) Pfam (PF02780) In PDB	Escherichia coli K12	TK 1
2	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3	A, B	2-C-{3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-5-(2-{[(R)-hydroxy(phosphonooxy)phosphoryl]oxy}ethyl)-4-methyl-1,3-thia zol-3-ium-2-yl}-5-O-phosphono-D-xylitol	non-polymer		655.4	2	Chemie (T5X)
4	A, B	1,2-ETHANEDIOL	non-polymer		62.1	11	Chemie (EDO)
5		water	water		18.0	1202	Chemie (HOH)

Sequence modifications

A, B: 1 - 663 (UniProt: P27302)

PDB	External Database	Details
His 664	-	expression tag
His 665	-	expression tag
His 666	-	expression tag
His 667	-	expression tag
His 668	-	expression tag
His 669	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	146243.0
Non-Polymers*	Number of molecules	15
	Total formula weight	2073.8
All*	Total formula weight	148316.8

*Water molecules are not included.