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Protein

Endo-1,4-beta-xylanase B

Gene

xlnB

Organism
Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139) (Aspergillus nidulans)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at transcript leveli

Functioni

Endo-1,4-beta-xylanase involved in the hydrolysis of xylan, a major structural heterogeneous polysaccharide found in plant biomass representing the second most abundant polysaccharide in the biosphere, after cellulose.1 Publication

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.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei117NucleophilePROSITE-ProRule annotation1
Active sitei208Proton donorPROSITE-ProRule annotation1

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

UniPathwayiUPA00114.

Protein family/group databases

CAZyiGH11. Glycoside Hydrolase Family 11.

Names & Taxonomyi

Protein namesi
Recommended name:
Endo-1,4-beta-xylanase B (EC:3.2.1.8)
Short name:
Xylanase B
Alternative name(s):
1,4-beta-D-xylan xylanohydrolase B
24 kDa xylanase
Endo-1,4-beta-xylanase G1
Short name:
Xylanase G1
Xylanase X24
Gene namesi
Name:xlnB
Synonyms:xynB, xynG1
ORF Names:AN9365
OrganismiEmericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139) (Aspergillus nidulans)
Taxonomic identifieri227321 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaPezizomycotinaEurotiomycetesEurotiomycetidaeEurotialesAspergillaceaeAspergillus
Proteomesi
  • UP000000560 Componenti: Chromosome VIII
  • UP000005890 Componenti: Partially assembled WGS sequence

Subcellular locationi

  • Secreted 1 Publication

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 18Sequence analysisAdd BLAST18
ChainiPRO_000000800519 – 221Endo-1,4-beta-xylanase BAdd BLAST203

Expressioni

Inductioni

Expressed in the presence of D-xylose under conditions of acidic ambient pH, probably under the regulation of the pacC transcription factor. Repressed in presence of glucose through the action of the creA transcription repressor.3 Publications

Structurei

3D structure databases

ProteinModelPortaliP55333.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini33 – 221GH11PROSITE-ProRule annotationAdd BLAST189

Sequence similaritiesi

Contains 1 GH11 (glycosyl hydrolase family 11) domain.PROSITE-ProRule annotation

Keywords - Domaini

Signal

Phylogenomic databases

HOGENOMiHOG000179135.
InParanoidiP55333.
KOiK01181.
OMAiGARTIKY.
OrthoDBiEOG092C4K17.

Family and domain databases

Gene3Di2.60.120.180. 1 hit.
InterProiIPR013320. ConA-like_dom.
IPR013319. GH11/12.
IPR018208. GH11_AS_1.
IPR033119. GH11_AS_2.
IPR033123. GH11_dom.
IPR001137. Glyco_hydro_11.
[Graphical view]
PfamiPF00457. Glyco_hydro_11. 1 hit.
[Graphical view]
PRINTSiPR00911. GLHYDRLASE11.
SUPFAMiSSF49899. SSF49899. 1 hit.
PROSITEiPS00776. GH11_1. 1 hit.
PS00777. GH11_2. 1 hit.
PS51761. GH11_3. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P55333-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVSFSSLLLA CSAVTAFAAP SDQSIAERSL SERSTPSSTG TSGGYYYSFW
60 70 80 90 100
TDGGGDVTYT NGDGGSYTVE WTNVGNFVGG KGWNPGSSQT ISYSGSFNPS
110 120 130 140 150
GNGYLSVYGW TQNPLIEYYI VESYGDYNPG TAGTHQGTLE SDGSTYDIYT
160 170 180 190 200
ATRENAPSIE GTATFTQFWS VRQSKRTSGS VTTQNHFDAW SQLGMTLGTH
210 220
NYQIVAVEGY QSSGSASITV S
Length:221
Mass (Da):23,504
Last modified:May 1, 2007 - v2
Checksum:iB762F0BB4B3F77C3
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti73N → K in CAA90074 (PubMed:8787417).Curated1
Sequence conflicti98N → I in CAA90074 (PubMed:8787417).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z49893 Genomic DNA. Translation: CAA90074.1.
AACD01000172 Genomic DNA. Translation: EAA66432.1.
BN001308 Genomic DNA. Translation: CBF87481.1.
PIRiS57469.
RefSeqiXP_682634.1. XM_677542.1.

Genome annotation databases

EnsemblFungiiCADANIAT00001152; CADANIAP00001152; CADANIAG00001152.
EAA66432; EAA66432; AN9365.2.
GeneIDi2867930.
KEGGiani:AN9365.2.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z49893 Genomic DNA. Translation: CAA90074.1.
AACD01000172 Genomic DNA. Translation: EAA66432.1.
BN001308 Genomic DNA. Translation: CBF87481.1.
PIRiS57469.
RefSeqiXP_682634.1. XM_677542.1.

3D structure databases

ProteinModelPortaliP55333.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

CAZyiGH11. Glycoside Hydrolase Family 11.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblFungiiCADANIAT00001152; CADANIAP00001152; CADANIAG00001152.
EAA66432; EAA66432; AN9365.2.
GeneIDi2867930.
KEGGiani:AN9365.2.

Phylogenomic databases

HOGENOMiHOG000179135.
InParanoidiP55333.
KOiK01181.
OMAiGARTIKY.
OrthoDBiEOG092C4K17.

Enzyme and pathway databases

UniPathwayiUPA00114.

Family and domain databases

Gene3Di2.60.120.180. 1 hit.
InterProiIPR013320. ConA-like_dom.
IPR013319. GH11/12.
IPR018208. GH11_AS_1.
IPR033119. GH11_AS_2.
IPR033123. GH11_dom.
IPR001137. Glyco_hydro_11.
[Graphical view]
PfamiPF00457. Glyco_hydro_11. 1 hit.
[Graphical view]
PRINTSiPR00911. GLHYDRLASE11.
SUPFAMiSSF49899. SSF49899. 1 hit.
PROSITEiPS00776. GH11_1. 1 hit.
PS00777. GH11_2. 1 hit.
PS51761. GH11_3. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiXYNB_EMENI
AccessioniPrimary (citable) accession number: P55333
Secondary accession number(s): C8VR70, Q00176, Q5AQR5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1996
Last sequence update: May 1, 2007
Last modified: November 2, 2016
This is version 105 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  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.