ID   XYNB_ASPFC              Reviewed;         221 AA.
AC   B0Y8Q8;
DT   23-MAR-2010, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   03-MAY-2023, entry version 59.
DE   RecName: Full=Probable endo-1,4-beta-xylanase B;
DE            Short=Xylanase B;
DE            EC=3.2.1.8;
DE   AltName: Full=1,4-beta-D-xylan xylanohydrolase B;
DE   AltName: Full=Endo-1,4-beta-xylanase G1;
DE            Short=Xylanase G1;
DE   Flags: Precursor;
GN   Name=xlnB; Synonyms=xynB, xynG1; ORFNames=AFUB_078210;
OS   Aspergillus fumigatus (strain CBS 144.89 / FGSC A1163 / CEA10) (Neosartorya
OS   fumigata).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC   Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC   Aspergillus subgen. Fumigati.
OX   NCBI_TaxID=451804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CBS 144.89 / FGSC A1163 / CEA10;
RX   PubMed=18404212; DOI=10.1371/journal.pgen.1000046;
RA   Fedorova N.D., Khaldi N., Joardar V.S., Maiti R., Amedeo P., Anderson M.J.,
RA   Crabtree J., Silva J.C., Badger J.H., Albarraq A., Angiuoli S., Bussey H.,
RA   Bowyer P., Cotty P.J., Dyer P.S., Egan A., Galens K., Fraser-Liggett C.M.,
RA   Haas B.J., Inman J.M., Kent R., Lemieux S., Malavazi I., Orvis J.,
RA   Roemer T., Ronning C.M., Sundaram J.P., Sutton G., Turner G., Venter J.C.,
RA   White O.R., Whitty B.R., Youngman P., Wolfe K.H., Goldman G.H.,
RA   Wortman J.R., Jiang B., Denning D.W., Nierman W.C.;
RT   "Genomic islands in the pathogenic filamentous fungus Aspergillus
RT   fumigatus.";
RL   PLoS Genet. 4:E1000046-E1000046(2008).
CC   -!- FUNCTION: Endo-1,4-beta-xylanase involved in the hydrolysis of xylan, a
CC       major structural heterogeneous polysaccharide found in plant biomass
CC       representing the second most abundant polysaccharide in the biosphere,
CC       after cellulose. {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans.;
CC         EC=3.2.1.8;
CC   -!- PATHWAY: Glycan degradation; xylan degradation.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the glycosyl hydrolase 11 (cellulase G) family.
CC       {ECO:0000305}.
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DR   EMBL; DS499599; EDP49789.1; -; Genomic_DNA.
DR   AlphaFoldDB; B0Y8Q8; -.
DR   SMR; B0Y8Q8; -.
DR   EnsemblFungi; EDP49789; EDP49789; AFUB_078210.
DR   VEuPathDB; FungiDB:AFUB_078210; -.
DR   HOGENOM; CLU_052631_0_0_1; -.
DR   PhylomeDB; B0Y8Q8; -.
DR   UniPathway; UPA00114; -.
DR   Proteomes; UP000001699; Unassembled WGS sequence.
DR   GO; GO:0005576; C:extracellular region; ISS:UniProtKB.
DR   GO; GO:0031176; F:endo-1,4-beta-xylanase activity; ISS:UniProtKB.
DR   GO; GO:0045493; P:xylan catabolic process; ISS:UniProtKB.
DR   Gene3D; 2.60.120.180; -; 1.
DR   InterPro; IPR013320; ConA-like_dom_sf.
DR   InterPro; IPR013319; GH11/12.
DR   InterPro; IPR018208; GH11_AS_1.
DR   InterPro; IPR033119; GH11_AS_2.
DR   InterPro; IPR033123; GH11_dom.
DR   InterPro; IPR001137; Glyco_hydro_11.
DR   PANTHER; PTHR46828; ENDO-1,4-BETA-XYLANASE A-RELATED; 1.
DR   PANTHER; PTHR46828:SF2; ENDO-1,4-BETA-XYLANASE A-RELATED; 1.
DR   Pfam; PF00457; Glyco_hydro_11; 1.
DR   PRINTS; PR00911; GLHYDRLASE11.
DR   SUPFAM; SSF49899; Concanavalin A-like lectins/glucanases; 1.
DR   PROSITE; PS00776; GH11_1; 1.
DR   PROSITE; PS00777; GH11_2; 1.
DR   PROSITE; PS51761; GH11_3; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Glycosidase; Hydrolase;
KW   Polysaccharide degradation; Secreted; Signal; Xylan degradation.
FT   SIGNAL          1..19
FT                   /evidence="ECO:0000255"
FT   CHAIN           20..221
FT                   /note="Probable endo-1,4-beta-xylanase B"
FT                   /id="PRO_0000393166"
FT   DOMAIN          33..221
FT                   /note="GH11"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01097"
FT   ACT_SITE        117
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU10062"
FT   ACT_SITE        208
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU10063"
SQ   SEQUENCE   221 AA;  23810 MW;  730177E76983C1E6 CRC64;
     MVSFSSLVLA ASTVAGVLAT PGSEQYVELA KRQLTSSQTG TNNGYYYSFW TDGGGQVTYT
     NGNGGQYQVD WNNCGNFVAG KGWNPASEKA VTYSGSWQTS GNGYLSVYGW TTSPLVEFYI
     VESYGSYDPS TGATHLGTVE SDGATYNLYK TTRTNAPSIQ GTATFDQYWS VRTSHRQSGT
     VTTKNHFDAW RNAGLQLGNF DYMIVATEGY QSSGSATITV S
//