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P45982 (XYLB_BUTFI) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 56. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Xylosidase/arabinosidase

Including the following 2 domains:

  1. Beta-xylosidase
    EC=3.2.1.37
    Alternative name(s):
    1,4-beta-D-xylan xylohydrolase
    Xylan 1,4-beta-xylosidase
  2. Alpha-L-arabinofuranosidase
    Short name=Arabinosidase
    EC=3.2.1.55
Gene names
Name:xylB
OrganismButyrivibrio fibrisolvens
Taxonomic identifier831 [NCBI]
Taxonomic lineageBacteriaFirmicutesClostridiaClostridialesLachnospiraceaeButyrivibrio

Protein attributes

Sequence length517 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Has a 1.6-fold higher activity as an arabinosidase than as a beta-xylosidase when tested on the substrates nitrophenyl-beta-D-xylopyranoside and P-nitrophenyl-alpha-L-arabinofuranoside.

Catalytic activity

Hydrolysis of (1->4)-beta-D-xylans, to remove successive D-xylose residues from the non-reducing termini.

Hydrolysis of terminal non-reducing alpha-L-arabinofuranoside residues in alpha-L-arabinosides.

Sequence similarities

Belongs to the glycosyl hydrolase 43 family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 517517Xylosidase/arabinosidase
PRO_0000057694

Sequences

Sequence LengthMass (Da)Tools
P45982 [UniParc].

Last modified November 1, 1995. Version 1.
Checksum: F1B645F76F6FE0B5

FASTA51758,222
        10         20         30         40         50         60 
MVIANNPILK GFYPDPSICR KGDDFYLVCS SFVYAPGVPI FHTKDLAHFE QIGNILDRES 

        70         80         90        100        110        120 
QLPLSGDISR GIFAPTIREH NGIFYMITTN VSSGGNFIVT AKDPAGPWSE PYYLGEDEAP 

       130        140        150        160        170        180 
GIDPSLFFDD DGKCYYVGTR PNPDGVRYNG DWEIWVQELD LEQMKLVGPS MAIWKGALKD 

       190        200        210        220        230        240 
VIWPEGPHLY KKDGYYYLLH AEAGTSFEHA ISVARSKELF KWFEGCPRNP IFTHRNLGKD 

       250        260        270        280        290        300 
YPVCNVGHAD LVDDINGNWY MVMLASRPCK GKCSLGRETF LAKVIWEDGW PVVNPGVGRL 

       310        320        330        340        350        360 
TDEVEMDLPE YRFSKEITTK DKMTFEETVL DDRFVGIERR SEDFYSLTDN PGFLRLKLRP 

       370        380        390        400        410        420 
EAIENTGNPS YLGIRQKTHS FRASCGLKFT PAKDNECAGM VLFQNNENHL ELLVVKKKDK 

       430        440        450        460        470        480 
LQFKVGPVIK GTKIRLATFD ISSGDLEIIL EAANQLANIY IKKNNEKILV AECIDLSPYT 

       490        500        510 
TEESGGFVGC TIGLYASSNG KTSDNYCDYS YFTVEEV 

« Hide

References

[1]"Sequencing and expression of the Butyrivibrio fibrisolvens xylB gene encoding a novel bifunctional protein with beta-D-xylosidase and alpha-L-arabinofuranosidase activities."
Utt E.A., Eddy C.K., Keshav K.F., Ingram L.O.
Appl. Environ. Microbiol. 57:1227-1234(1991) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
M55537 Genomic DNA. Translation: AAA63610.1.
PIRA49776.

3D structure databases

ProteinModelPortalP45982.
ModBaseSearch...
MobiDBSearch...

Protein family/group databases

CAZyGH43. Glycoside Hydrolase Family 43.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Family and domain databases

Gene3D2.115.10.20. 1 hit.
2.60.120.200. 1 hit.
InterProIPR008985. ConA-like_lec_gl_sf.
IPR013320. ConA-like_subgrp.
IPR006710. Glyco_hydro_43.
IPR023296. Glyco_hydro_beta-prop.
[Graphical view]
PANTHERPTHR22925. PTHR22925. 1 hit.
PfamPF04616. Glyco_hydro_43. 1 hit.
[Graphical view]
SUPFAMSSF49899. SSF49899. 1 hit.
SSF75005. SSF75005. 1 hit.
ProtoNetSearch...

Entry information

Entry nameXYLB_BUTFI
AccessionPrimary (citable) accession number: P45982
Entry history
Integrated into UniProtKB/Swiss-Prot: November 1, 1995
Last sequence update: November 1, 1995
Last modified: April 16, 2014
This is version 56 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

Glycosyl hydrolases

Classification of glycosyl hydrolase families and list of entries