3RDK

Protein crystal structure of xylanase A1 of Paenibacillus sp. JDR-2

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Endo-1,4-beta-xylanase	polymer	341	38401.8	2	UniProt (C6CRV0) Pfam (PF00331) In PDB	Paenibacillus sp. JDR-2
2	C, D	4-O-methyl-alpha-D-glucopyranuronic acid-(1-2)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-alpha-D-xylopyranose	branched		604.5	2	In PDB GlyTouCan (G82480QZ)
3	A, B	GLYCEROL	non-polymer		92.1	9	Chemie (GOL)
4	A	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
5	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
6		water	water		18.0	720	Chemie (HOH)

Sequence modifications

A, B: 5 - 338 (UniProt: C6CRV0)

PDB	External Database	Details
Gly 1	-	expression tag
Ser 2	-	expression tag
His 3	-	expression tag
Met 4	-	expression tag
Ala 339	-	expression tag
Glu 340	-	expression tag
Gln 341	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	76803.6
Branched	Number of molecules	2
	Total formula weight	1209.0
Non-Polymers*	Number of molecules	13
	Total formula weight	959.5
All*	Total formula weight	78972.1

*Water molecules are not included.