2ZEX

Family 16 carbohydrate binding module

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	S-layer associated multidomain endoglucanase	polymer	147	16090.9	2	UniProt (Q9ZA17) Pfam (PF02018) In PDB	Thermoanaerobacterium polysaccharolyticum	CBM-1 cellopentaose complex
2	C, D	beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose	branched		828.7	2	In PDB BIRD (PRD_900016) GlyTouCan (G91683DU)		beta-cellopentaose
3	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4		water	water		18.0	520	Chemie (HOH)

Sequence modifications

A, B: 4 - 146 (UniProt: Q9ZA17)

PDB	External Database	Details
Gly 0	-	expression tag
Ala 1	-	expression tag
His 2	-	expression tag
Met 3	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	32181.7
Branched	Number of molecules	2
	Total formula weight	1657.4
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	33919.3

*Water molecules are not included.