6R3M

Family 11 Carbohydrate-Binding Module from Clostridium thermocellum in complex with beta-1,3-1,4-mixed-linked tetrasaccharide

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Endoglucanase H	polymer	178	19792.0	1	UniProt (P16218) Pfam (PF03425) In PDB	Hungateiclostridium thermocellum ATCC 27405	Cellulase H,Endo-1,4-beta-glucanase H,EgH
2	B	beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-3)-beta-D-glucopyranose	branched		666.6	1	In PDB GlyTouCan (G95849GT)
3	A	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4	A	ACETATE ION	non-polymer		59.0	1	Chemie (ACT)
5	A	PHOSPHATE ION	non-polymer		95.0	4	Chemie (PO4)
6	A	alpha-D-glucopyranose	non-polymer		180.2	1	Chemie (GLC)
7		water	water		18.0	212	Chemie (HOH)

Sequence modifications

A: 4 - 170 (UniProt: P16218)

PDB	External Database	Details
Met 1	-	initiating methionine
Ala 2	-	expression tag
Ser 3	-	expression tag
Leu 171	-	expression tag
Glu 172	-	expression tag
His 173	-	expression tag
His 174	-	expression tag
His 175	-	expression tag
His 176	-	expression tag
His 177	-	expression tag
His 178	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	19792.0
Branched	Number of molecules	1
	Total formula weight	666.6
Non-Polymers*	Number of molecules	8
	Total formula weight	699.2
All*	Total formula weight	21157.8

*Water molecules are not included.