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Protein

Endo-1,4-beta-xylanase B

Gene

xynB

Organism
Butyrivibrio fibrisolvens
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

B.fibrisolvens is located in the rumen of ruminant animals, where it contributes to the animal's digestion of plant material by hydrolyzing hemicellulose with its xylanases.

Catalytic activityi

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

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei150 – 1501Proton donorBy similarity
Active sitei255 – 2551NucleophilePROSITE-ProRule annotation

GO - Molecular functioni

  1. endo-1,4-beta-xylanase activity Source: UniProtKB-EC

GO - Biological processi

  1. xylan catabolic process Source: UniProtKB-UniPathway
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

CAZyiGH10. Glycoside Hydrolase Family 10.

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
Gene namesi
Name:xynB
OrganismiButyrivibrio fibrisolvens
Taxonomic identifieri831 [NCBI]
Taxonomic lineageiBacteriaFirmicutesClostridiaClostridialesLachnospiraceaeButyrivibrio

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 635635Endo-1,4-beta-xylanase BPRO_0000184062Add
BLAST

Structurei

3D structure databases

ProteinModelPortaliP26223.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni69 – 307239CatalyticSequence AnalysisAdd
BLAST

Sequence similaritiesi

Family and domain databases

Gene3Di3.20.20.80. 1 hit.
3.40.50.1820. 1 hit.
InterProiIPR029058. AB_hydrolase.
IPR013094. AB_hydrolase_3.
IPR001000. Glyco_hydro_10.
IPR013781. Glyco_hydro_catalytic_dom.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PfamiPF07859. Abhydrolase_3. 1 hit.
PF00331. Glyco_hydro_10. 1 hit.
[Graphical view]
PRINTSiPR00134. GLHYDRLASE10.
SMARTiSM00633. Glyco_10. 1 hit.
[Graphical view]
SUPFAMiSSF51445. SSF51445. 1 hit.
SSF53474. SSF53474. 1 hit.
PROSITEiPS00591. GLYCOSYL_HYDROL_F10. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P26223-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MNLKTAYEPY FKIGAAISRW NLHTPAHTKL LAEQFNSFTC ENDMKPMYYL
60 70 80 90 100
DREANKKDPE KYNLSPALTF ENAIPYLEFA KDNKIAMRGH TLVWHNQTPK
110 120 130 140 150
WFFCERYNEN FPMADRETIL ARLESYIHGV LDFVQTNYPG IIYAWDVVNE
160 170 180 190 200
IVDEGAFRKS IWTETVGEDF FIKAFEFARK YAAPEVSLFY NDYETAQPWK
210 220 230 240 250
RDFILEKVLG PLIDKKLIDG MGMQSHLLMD HPDISEYRTA LEMYGSTGLQ
260 270 280 290 300
IHITELDMHN ADPSEESMHA LATRYQEFFQ TYLDAKKSGK ANITSVTFWN
310 320 330 340 350
LLDENSWLSG FRRETSYPLV FKGKCEAKEA YYAVLKAAVS DDSIDKWVPD
360 370 380 390 400
YSEEDYKLQG MPTPDIKRFR ENIWQENEYN YEASYGFIPN LFAYLHNDDV
410 420 430 440 450
KRDCMLVIPG GGYCMCCSHE GELAAMEFYN RGMNAFVLSY TTDITMSVPL
460 470 480 490 500
HKQPLEDISR AVRFIRKNAS KYNIDGKKLV IMGFSAGSHV CGSLAVHFDD
510 520 530 540 550
VKDNNPEYAD ISGRPDGVIL SYPVITTGRY THADSVRTLL GANPTDEELT
560 570 580 590 600
YFSLEKQVKD NTPPCFIWQT EEDSVVPVEN SYLFANALRE KKIPFAHYVF
610 620 630
PRGFHGLTVA NDEFFSGWSG GEYSMEQTMR ARFAV
Length:635
Mass (Da):73,185
Last modified:May 1, 1992 - v1
Checksum:iD2CC7A638FA0F317
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X61495 Genomic DNA. Translation: CAA43712.1.
PIRiS16567.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X61495 Genomic DNA. Translation: CAA43712.1.
PIRiS16567.

3D structure databases

ProteinModelPortaliP26223.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

CAZyiGH10. Glycoside Hydrolase Family 10.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Enzyme and pathway databases

UniPathwayiUPA00114.

Family and domain databases

Gene3Di3.20.20.80. 1 hit.
3.40.50.1820. 1 hit.
InterProiIPR029058. AB_hydrolase.
IPR013094. AB_hydrolase_3.
IPR001000. Glyco_hydro_10.
IPR013781. Glyco_hydro_catalytic_dom.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PfamiPF07859. Abhydrolase_3. 1 hit.
PF00331. Glyco_hydro_10. 1 hit.
[Graphical view]
PRINTSiPR00134. GLHYDRLASE10.
SMARTiSM00633. Glyco_10. 1 hit.
[Graphical view]
SUPFAMiSSF51445. SSF51445. 1 hit.
SSF53474. SSF53474. 1 hit.
PROSITEiPS00591. GLYCOSYL_HYDROL_F10. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Cloning, sequencing and expression of a gene encoding a 73 kDa xylanase enzyme from the rumen anaerobe Butyrivibrio fibrisolvens H17c."
    Lin L.-L., Thomson J.A.
    Mol. Gen. Genet. 228:55-61(1991) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: H17C.

Entry informationi

Entry nameiXYNB_BUTFI
AccessioniPrimary (citable) accession number: P26223
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 1, 1992
Last sequence update: May 1, 1992
Last modified: October 1, 2014
This is version 71 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

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

External Data

Dasty 3

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 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.