4NZ1

Structure of Vibrio cholerae chitin de-N-acetylase in complex with DI(N-ACETYL-D-GLUCOSAMINE) (CBS) in P 21

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Deacetylase DA1	polymer	419	46895.9	2	UniProt (M7M1G8) In PDB	Vibrio cholerae
2	C	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	1	In PDB GlyTouCan (G42666HT)
3	A, B	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
4	A, B	CALCIUM ION	non-polymer		40.1	3	Chemie (CA)
5	A	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
6	A, B	1,2-ETHANEDIOL	non-polymer		62.1	2	Chemie (EDO)
7		water	water		18.0	657	Chemie (HOH)

Sequence modifications

A, B: 27 - 431 (UniProt: M7M1G8)

PDB	External Database	Details
Met 26	-	expression tag
Ser 39	Asp 35	engineered mutation
Glu 432	-	expression tag
Leu 433	-	expression tag
Arg 434	-	expression tag
Arg 435	-	expression tag
Gln 436	-	expression tag
Trp 437	-	expression tag
Ser 438	-	expression tag
His 439	-	expression tag
Pro 440	-	expression tag
Gln 441	-	expression tag
Phe 442	-	expression tag
Glu 443	-	expression tag
Lys 444	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	93791.8
Branched	Number of molecules	1
	Total formula weight	424.4
Non-Polymers*	Number of molecules	8
	Total formula weight	410.6
All*	Total formula weight	94626.9

*Water molecules are not included.