4ZZ8

X-ray crystal structure of chitosan-binding module 2 in complex with chitotriose derived from chitosanase/glucanase from Paenibacillus sp. IK-5

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Glucanase/chitosanase	polymer	138	15041.3	2	UniProt (Q93IE7) Pfam (PF00754)	Paenibacillus fukuinensis
2	C (C)	2-amino-2-deoxy-beta-D-glucopyranose-(1-4)-2-amino-2-deoxy-beta-D-glucopyranose-(1-4)-2-amino-2-deoxy-beta-D-glucopyranose	branched		501.5	1	In PDB GlyTouCan (G36121RO)
3	D, E, F, G, K (A, B)	SULFATE ION	non-polymer		96.1	5	Chemie (SO4)
4	H, I, J (A)	1,2-ETHANEDIOL	non-polymer		62.1	3	Chemie (EDO)
5	L, M (A, B)	water	water		18.0	309	Chemie (HOH)

Sequence modifications

A, B: 1 - 131 (UniProt: Q93IE7)

PDB	External Database	Details
Met -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	30082.5
Branched	Number of molecules	1
	Total formula weight	501.5
Non-Polymers*	Number of molecules	8
	Total formula weight	666.5
All*	Total formula weight	31250.5

*Water molecules are not included.