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Endo-1,4-beta-xylanase B

Dictyoglomus sp. (strain B4A)
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at protein leveli


Catalytic activityi

Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans.

Pathwayi: xylan degradation

This protein is involved in the pathway xylan degradation, which is part of Glycan degradation.
View all proteins of this organism that are known to be involved in the pathway xylan degradation and in Glycan degradation.

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Glycosidase, Hydrolase

Keywords - Biological processi

Carbohydrate metabolism, Polysaccharide degradation, Xylan degradation

Enzyme and pathway databases


Names & Taxonomyi

Protein namesi
Recommended name:
Endo-1,4-beta-xylanase B (EC:
Short name:
Xylanase B
Alternative name(s):
1,4-beta-D-xylan xylanohydrolase B
OrganismiDictyoglomus sp. (strain B4A)
Taxonomic identifieri69007 [NCBI]
Taxonomic lineageiBacteriaDictyoglomiDictyoglomalesDictyoglomaceaeDictyoglomus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001840641 – ›10Endo-1,4-beta-xylanase B›10

Family & Domainsi

Sequence similaritiesi


Sequence statusi: Fragment.

Mass (Da):1,144
Last modified:November 1, 1997 - v1

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Non-terminal residuei101


3D structure databases


Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Enzyme and pathway databases


Family and domain databases


Entry informationi

Entry nameiXYNB_DICB4
AccessioniPrimary (citable) accession number: P80717
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 1, 1997
Last modified: October 1, 2014
This is version 36 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program


Keywords - Technical termi

Direct protein sequencing


  1. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.