2W1Q

Unique ligand binding specificity for a family 32 Carbohydrate- Binding Module from the Mu toxin produced by Clostridium perfringens

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)	HYALURONOGLUCOSAMINIDASE	polymer	192	21395.6	2	UniProt (P26831) Pfam (PF00754)	CLOSTRIDIUM PERFRINGENS	MU TOXIN, FAMILY 84 GLYCOSIDE HYDROLASE
2	C, F (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3	D, G (A, B)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
4	E (A)	2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		209.2	1	Chemie (BTB)
5	H, I (A, B)	water	water		18.0	475	Chemie (HOH)

Sequence modifications

A, B: 784 - 806 (PDB: 2W1Q)
A, B: 807 - 975 (UniProt: P26831)

PDB	External Database	Details
Val 944	Ile 944	variant

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	42791.1
Non-Polymers*	Number of molecules	5
	Total formula weight	335.4
All*	Total formula weight	43126.5

*Water molecules are not included.