Reviewed, UniProtKB/Swiss-Prot P55333 (XYNB_EMENI)

Names and origin

Protein names

Recommended name:
    Endo-1,4-beta-xylanase B
      Short name=Xylanase B
    EC=3.2.1.8
Alternative name(s):
    1,4-beta-D-xylan xylanohydrolase B
    24 kDa xylanase
    Xylanase X24

Gene names

Name:	xlnB
ORF Names:	AN9365

Organism

Emericella nidulans (Aspergillus nidulans) [Complete proteome]

Taxonomic identifier

162425 [NCBI]

Taxonomic lineage

Eukaryota › Fungi › Dikarya › Ascomycota › Pezizomycotina › Eurotiomycetes › Eurotiomycetidae › Eurotiales › Trichocomaceae › Emericella

Protein attributes

Sequence length	221 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Inferred from homology.

General annotation (Comments)

Catalytic activity	Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans.
Pathway	Glycan degradation; xylan degradation.
Sequence similarities	Belongs to the glycosyl hydrolase 11 (cellulase G) family.

Ontologies

Keywords
Biological process	Xylan degradation
Domain	Signal
Molecular function	Glycosidase Hydrolase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	xylan catabolic process Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	endo-1,4-beta-xylanase 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
	Signal peptide	1 – 18	18	Potential
	Chain	19 – 221	203	Endo-1,4-beta-xylanase B		PRO_0000008005
Sites
	Active site	117	1	Nucleophile By similarity
	Active site	208	1	Proton donor By similarity
Experimental info
	Sequence conflict	73	1	N → K in CAA90074. Ref.1
	Sequence conflict	98	1	N → I in CAA90074. Ref.1

Sequences

	Sequence		Length	Mass (Da)
	P55333-1 [UniParc]. Last modified May 1, 2007. Version 2. Checksum: B762F0BB4B3F77C3	FASTA	221	23,504
	10 20 30 40 50 60 MVSFSSLLLA CSAVTAFAAP SDQSIAERSL SERSTPSSTG TSGGYYYSFW TDGGGDVTYT 70 80 90 100 110 120 NGDGGSYTVE WTNVGNFVGG KGWNPGSSQT ISYSGSFNPS GNGYLSVYGW TQNPLIEYYI 130 140 150 160 170 180 VESYGDYNPG TAGTHQGTLE SDGSTYDIYT ATRENAPSIE GTATFTQFWS VRQSKRTSGS 190 200 210 220 VTTQNHFDAW SQLGMTLGTH NYQIVAVEGY QSSGSASITV S

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Molecular cloning and expression in Saccharomyces cerevisiae of two Aspergillus nidulans xylanase genes." Perez-Gonzalez J.A., de Graaff L.H., Visser J., Ramon D. Appl. Environ. Microbiol. 62:2179-2182(1996) [PubMed: 8787417] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]	"Sequencing of Aspergillus nidulans and comparative analysis with A. fumigatus and A. oryzae." Galagan J.E., Calvo S.E., Cuomo C., Ma L.-J., Wortman J.R., Batzoglou S., Lee S.-I., Bastuerkmen M., Spevak C.C., Clutterbuck J., Kapitonov V., Jurka J., Scazzocchio C., Farman M.L., Butler J., Purcell S., Harris S., Braus G.H. , Draht O., Busch S., D'Enfert C., Bouchier C., Goldman G.H., Bell-Pedersen D., Griffiths-Jones S., Doonan J.H., Yu J., Vienken K., Pain A., Freitag M., Selker E.U., Archer D.B., Penalva M.A., Oakley B.R., Momany M., Tanaka T., Kumagai T., Asai K., Machida M., Nierman W.C., Denning D.W., Caddick M.X., Hynes M., Paoletti M., Fischer R., Miller B.L., Dyer P.S., Sachs M.S., Osmani S.A., Birren B.W. Nature 438:1105-1115(2005) [PubMed: 16372000] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: FGSC 4.

Cross-references

Sequence databases
EMBLGenBankDDBJ	Z49893 Genomic DNA. Translation: CAA90074.1. AACD01000172 Genomic DNA. Translation: EAA66432.1.
PIR	S57469.
RefSeq	XP_682634.1.
3D structure databases
HSSP	HSSP built from PDB template 1XND based on UniProtKB P48793.
ModBase	Search...
Protein family/group databases
CAZy	GH11. Glycoside Hydrolase Family 11.
Genome annotation databases
GeneID	2867930.
KEGG	ani:AN9365.2.
Enzyme and pathway databases
BRENDA	3.2.1.8. 3859.
Family and domain databases
InterPro	IPR001137. Glyco_hydro_11. IPR013319. Glyco_hydro_11/12_cat. IPR018208. Glyco_hydro_11_AS. [Graphical view]
Gene3D	G3DSA:2.60.120.180. Glyco_hydro_11/12_cat. 1 hit.
Pfam	PF00457. Glyco_hydro_11. 1 hit. [Graphical view]
PRINTS	PR00911. GLHYDRLASE11.
PROSITE	PS00776. GLYCOSYL_HYDROL_F11_1. 1 hit. PS00777. GLYCOSYL_HYDROL_F11_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

XYNB_EMENI

Accession

Primary (citable) accession number: P55333
Secondary accession number(s): Q00176, Q5AQR5

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1996
Last sequence update:	May 1, 2007
Last modified:	September 22, 2009
This is version 56 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

FPAP (Fungal Proteome Annotation Project)