3IK2

Crystal Structure of a Glycoside Hydrolase Family 44 Endoglucanase produced by Clostridium acetobutylium ATCC 824

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Endoglucanase A	polymer	517	57654.0	1	UniProt (Q977Y3) Pfam (PF12891) In PDB	Clostridium acetobutylicum	Endo-1,4-beta-glucanase, Cellulase A
2	A	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
3	A	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
4	A	GLYCEROL	non-polymer		92.1	9	Chemie (GOL)
5	A	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
6	A	ACETATE ION	non-polymer		59.0	4	Chemie (ACT)
7		water	water		18.0	637	Chemie (HOH)

Sequence modifications

A: 2 - 509 (UniProt: Q977Y3)

PDB	External Database	Details
Met 1	-	initiating methionine
Leu 510	-	expression tag
Glu 511	-	expression tag
His 512	-	expression tag
His 513	-	expression tag
His 514	-	expression tag
His 515	-	expression tag
His 516	-	expression tag
His 517	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	57654.0
Non-Polymers*	Number of molecules	16
	Total formula weight	1236.6
All*	Total formula weight	58890.6

*Water molecules are not included.