1UY4

Binding sub-site dissection of a family 6 carbohydrate-binding module by X-ray crystallography and isothermal titration calorimetry

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	ENDO-1,4-BETA-XYLANASE A	polymer	145	15240.5	1	UniProt (Q93AQ5) Pfam (PF03422) UniProt (by SIFTS) (Q8GJ44) In PDB	CLOSTRIDIUM STERCORARIUM	CSCBM6-1,1,4-BETA-D-XYLAN XYLANOHYDROLASE A
2	B	beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose	branched		546.5	1	In PDB GlyTouCan (G60650FG)
3	A	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
4	A	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
5	A	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
6		water	water		18.0	166	Chemie (HOH)

Sequence modifications

A: 1 - 6 (PDB: 1UY4)
A: 7 - 145 (UniProt: Q93AQ5)

PDB	External Database	Details
Asn 111	Gln 105	conflict

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	15240.5
Branched	Number of molecules	1
	Total formula weight	546.5
Non-Polymers*	Number of molecules	3
	Total formula weight	155.2
All*	Total formula weight	15942.2

*Water molecules are not included.