PDBsum entry 8qy1

Hydrolase

PDB id: 8qy1

Contents

Protein chains

184 a.a.

Ligands

XYP-XYP

XYP-XYP-XYP-XYP ×2

BTB ×2

ACT ×2

Metals

_ZN ×2

Waters ×164

PDB id:

8qy1

Name:

Hydrolase

Title:

Xylanase from bacillus circulans mutant e78q/y69a bound to xylohexaose

Structure:

Endo-1,4-beta-xylanase. Chain: a, b. Engineered: yes. Mutation: yes. Other_details: xylohexaose

Source:

Niallia circulans subsp. Circulans. Organism_taxid: 74308. Gene: xlna. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008

Resolution:

1.90Å R-factor: 0.196 R-free: 0.238

Authors:

A.Chikunova,M.Saberi,M.Ubbink

Key ref:

M.Saberi et al. Bimodal substrate binding in the active site of the glycosidase bcx. Febs j, . PubMed id: 39185686

Date:

25-Oct-23 Release date: 21-Aug-24

Protein chains

P09850  (XYNA_NIACI) -  Endo-1,4-beta-xylanase from Niallia circulans

Seq: 213 a.a.

Struc: 184 a.a.*

* PDB and UniProt seqs differ at 2 residue positions (black crosses)

Enzyme reactions

• Enzyme class: E.C.3.2.1.8 - endo-1,4-beta-xylanase.
• Reaction: Endohydrolysis of 1,4-beta-D-xylosidic linkages in xylans.