8YUI

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

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 (C, D)	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	2	In PDB GlyTouCan (G42666HT)
3	AA, AB, AC, BA, BB... (A, B)	GLYCEROL	non-polymer		92.1	66	Chemie (GOL)
4	KB, N (B, A)	2-METHYL-4,5-DIHYDRO-(1,2-DIDEOXY-ALPHA-D-GLUCOPYRANOSO)[2,1-D]-1,3-OXAZOLE	non-polymer		204.2	2	Chemie (NGO)
5	BC, DC, EA, EC, FC... (B, A)	ACETATE ION	non-polymer		59.0	22	Chemie (ACT)
6	HB, RC, XA, YA (B, A)	PHOSPHATE ION	non-polymer		95.0	4	Chemie (PO4)
7	UC, VC (A, B)	water	water		18.0	1581	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	2
	Total formula weight	848.8
Non-Polymers*	Number of molecules	94
	Total formula weight	8165.5
All*	Total formula weight	122839.3

*Water molecules are not included.