P48824 (XYNB_ASPKA) Reviewed, UniProtKB/Swiss-Prot

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
Endo-1,4-beta-xylanase G1
Short name=Xylanase G1

Gene names

Name:	xlnB
Synonyms:	xynB, xynG1

Organism

Aspergillus kawachii (White koji mold) (Aspergillus awamori var. kawachi)

Taxonomic identifier

40384 [NCBI]

Taxonomic lineage

Eukaryota › Fungi › Dikarya › Ascomycota › Pezizomycotina › Eurotiomycetes › Eurotiomycetidae › Eurotiales › Trichocomaceae › mitosporic Trichocomaceae › Aspergillus

Protein attributes

Sequence length	225 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Inferred from homology

General annotation (Comments)

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

Ontologies

Keywords
Biological process	Xylan degradation
Cellular component	Secreted
Domain	Signal
Molecular function	Glycosidase Hydrolase
PTM	Glycoprotein
Gene Ontology (GO)
Biological process	xylan catabolic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	extracellular region Inferred from electronic annotation. Source: UniProtKB-SubCell
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 – 225	207	Endo-1,4-beta-xylanase B		PRO_0000007989
Sites
	Active site	121	1	Nucleophile By similarity
	Active site	212	1	Proton donor By similarity
Amino acid modifications
	Glycosylation	142	1	N-linked (GlcNAc...) Potential

Sequences

	Sequence		Length	Mass (Da)
	P48824 [UniParc]. Last modified February 1, 1996. Version 1. Checksum: 54B13D48AF5C7115	FASTA	225	24,146
	10 20 30 40 50 60 MLTKNLLLCF AAAKAVLAVP HDSVVERSDA LHKLSERSTP SSTGENNGYY YSFWTDGGGD 70 80 90 100 110 120 VTYTNGNAGS YSVEWSNVGN FVGGKGWNPG SAKDITYSGN FTPSGNGYLS VYGWTTDPLI 130 140 150 160 170 180 EYYIVESYGD YNPGSGGTTR GNVSSDGSVY DIYTATRTNA PSIQGTATFS QYWSVRQNKR 190 200 210 220 VGGTVTTSNH FNAWAKLGMN LGTHNYQILA TEGYQSSGSS SITIQ

References

[1]	Ito K. Submitted (SEP-1994) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: NBRC 4308.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	D38070 Genomic DNA. Translation: BAA07264.1.
3D structure databases
ProteinModelPortal	P48824.
SMR	P48824. Positions 39-224.
ModBase	Search...
Protein family/group databases
CAZy	GH11. Glycoside Hydrolase Family 11.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Family and domain databases
InterPro	IPR008985. ConA-like_lec_gl. 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.
SUPFAM	SSF49899. ConA_like_lec_gl. 1 hit.
PROSITE	PS00776. GLYCOSYL_HYDROL_F11_1. 1 hit. PS00777. GLYCOSYL_HYDROL_F11_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

XYNB_ASPKA

Accession

Primary (citable) accession number: P48824

Entry history

Integrated into UniProtKB/Swiss-Prot:	February 1, 1996
Last sequence update:	February 1, 1996
Last modified:	January 25, 2012
This is version 60 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Fungal Protein Annotation Program