P49943 (XYLB_BACOV) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended 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-N-arabinofuranosidase
   Short name=Arabinosidase
   EC=3.2.1.55

Gene names

Name:

xsa

Organism

Bacteroides ovatus

Taxonomic identifier

28116 [NCBI]

Taxonomic lineage

cellular organisms › Bacteria › Bacteroidetes/Chlorobi group › Bacteroidetes › Bacteroidia › Bacteroidales › Bacteroidaceae › Bacteroides

Protein attributes

Sequence length	325 AA.
Sequence status	Complete.
Protein existence	Evidence at transcript level

General annotation (Comments)

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.
Induction	By xylan.
Sequence similarities	Belongs to the glycosyl hydrolase 43 family.

Ontologies

Keywords
Biological process	Xylan degradation
Molecular function	Glycosidase Hydrolase
Technical term	Multifunctional enzyme
Gene Ontology (GO)
Biological_process	xylan catabolic process Inferred from electronic annotation. Source: UniProtKB-KW
Molecular_function	alpha-N-arabinofuranosidase activity Inferred from electronic annotation. Source: EC xylan 1,4-beta-xylosidase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 325	325	Xylosidase/arabinosidase		PRO_0000057693

Sequences

	Sequence		Length	Mass (Da)
	P49943 [UniParc]. Last modified October 1, 1996. Version 1. Checksum: D54AEB7B62EAB2BE	FASTA	325	37,246
	10 20 30 40 50 60 MKTEKRYLVP GDYMADPAVH VFDGKLYIYP SHDWESGIAE NDNGDHFNMK DYHVYSMDDV 70 80 90 100 110 120 MNGEIKDHGV VLSTEDIPWA GRQLWDCDVV CKDGKYYMYF PLKDQNDIFR IGVAVSDKPY 130 140 150 160 170 180 GPFIPEANPM KGSYSIDPAV WDDGDGNYYI YFGGLWGGQL QRYRNNKALE SAILPEGEEE 190 200 210 220 230 240 AIPSRVARLS EDMMEFAEEP RAVVILDEDG KPLTAGDTER RFFEASWMHK YNGKYYFSYS 250 260 270 280 290 300 TGDTHLLCYA TGDNPYGPFT YQGVILTPVV GWTTHHAIVE FKGKWYLFHH DCVPSEGKTW 310 320 LRSLKVCELQ YDADGRIITI EGKDE

References

[1]	"Nucleotide sequences of xylan-inducible xylanase and xylosidase/arabinosidase genes from Bacteroides ovatus V975." Whitehead T.R. Biochim. Biophys. Acta 1244:239-241(1995) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: V975.

Cross-references

Sequence databases
EMBL GenBank DDBJ	U04957 Genomic DNA. Translation: AAB08024.1.
PIR	S55893.
3D structure databases
ProteinModelPortal	P49943.
ModBase	Search...
Protein family/group databases
CAZy	GH43. Glycoside Hydrolase Family 43.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Family and domain databases
Gene3D	2.115.10.20. 1 hit.
InterPro	IPR006710. Glyco_hydro_43. IPR023296. Glyco_hydro_beta-prop. [Graphical view]
PANTHER	PTHR22925. PTHR22925. 1 hit.
Pfam	PF04616. Glyco_hydro_43. 1 hit. [Graphical view]
SUPFAM	SSF75005. Glyco_hydro_43_beta-prop. 1 hit.
ProtoNet	Search...

Entry information

Entry name

XYLB_BACOV

Accession

Primary (citable) accession number: P49943

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1996
Last sequence update:	October 1, 1996
Last modified:	April 3, 2013
This is version 51 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program