8YUH

X-ray Crystal structure of glycoside hydrolase family 18 chitinase from Serratia marcescens hexahistigine-tagged SmChiB with allosamidin

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)	Chitinase B	polymer	511	56912.5	2	UniProt (P11797)	Serratia marcescens
2	C, D, E, F (C, D, E, F)	2-acetamido-2-deoxy-beta-D-allopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-allopyranose	branched		424.4	4	In PDB BIRD (PRD_000468) GlyTouCan (G77950XB)
3	AA, AC, AD, BC, BD... (A, B)	GLYCEROL	non-polymer		92.1	52	Chemie (GOL)
4	GB, HB, PC, R, U... (A, B)	PHOSPHATE ION	non-polymer		95.0	6	Chemie (PO4)
5	AB, BA, BB, CA, CB... (A, B)	ACETATE ION	non-polymer		59.0	48	Chemie (ACT)
6	EA, FA, JC, LC (A, B)	ALLOSAMIZOLINE	non-polymer		216.2	4	BIRD (PRD_000468) Chemie (AMI)
7	MD, ND (A, B)	water	water		18.0	1572	Chemie (HOH)

Sequence modifications

A, B: 2 - 499 (UniProt: P11797)

PDB	External Database	Details
Met 0	-	initiating methionine
Asp 1	-	expression tag
Ala 500	-	expression tag
Ala 501	-	expression tag
Ala 502	-	expression tag
Leu 503	-	expression tag
Glu 504	-	expression tag
His 505	-	expression tag
His 506	-	expression tag
His 507	-	expression tag
His 508	-	expression tag
His 509	-	expression tag
His 510	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	113825.0
Branched	Number of molecules	4
	Total formula weight	1697.6
Non-Polymers*	Number of molecules	110
	Total formula weight	9057.8
All*	Total formula weight	124580.4

*Water molecules are not included.