1XLB

MECHANISM FOR ALDOSE-KETOSE INTERCONVERSION BY D-XYLOSE ISOMERASE INVOLVING RING OPENING FOLLOWED BY A 1,2-HYDRIDE SHIFT

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	D-XYLOSE ISOMERASE	polymer	394	43209.2	2	UniProt (P12070) Pfam (PF01261) In PDB	Arthrobacter sp.
2	A, B	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3		water	water		18.0	586	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	86418.3
Non-Polymers*	Number of molecules	2
	Total formula weight	48.6
All*	Total formula weight	86466.9

*Water molecules are not included.