1DYO

Xylan-Binding Domain from CBM 22, formally x6b domain

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	ENDO-1,4-BETA-XYLANASE Y	polymer	160	17862.2	2	UniProt (P51584) Pfam (PF02018) In PDB	CLOSTRIDIUM THERMOCELLUM	CBM 22, X6B DOMAIN
2	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3		water	water		18.0	297	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	35724.5
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	35804.7

*Water molecules are not included.