6XN2

Crystal structure of the GH43_1 enzyme from Xanthomonas citri complexed with xylotriose

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)	Xylosidase	polymer	364	40225.6	2	UniProt (Q8PET2)	Xanthomonas axonopodis pv. citri (strain 306)
2	C (C)	beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose	branched		414.4	1	In PDB BIRD (PRD_900117) GlyTouCan (G87429QT)		4beta-beta-xylotriose
3	D, L (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4	E (A)	beta-D-xylopyranose	non-polymer		150.1	1	Chemie (XYP)
5	F, G, H, I, J... (A, B)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	9	Chemie (PEG)
6	K, Q (A, B)	GLYCEROL	non-polymer		92.1	2	Chemie (GOL)
7	R, S (A, B)	water	water		18.0	502	Chemie (HOH)

Sequence modifications

A, B: 1 - 344 (UniProt: Q8PET2)

PDB	External Database	Details
Met -19	-	initiating methionine
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	80451.2
Branched	Number of molecules	1
	Total formula weight	414.4
Non-Polymers*	Number of molecules	14
	Total formula weight	1369.6
All*	Total formula weight	82235.1

*Water molecules are not included.