ID   XYNB_ASPCL              Reviewed;         221 AA.
AC   A1CU59;
DT   23-MAR-2010, integrated into UniProtKB/Swiss-Prot.
DT   23-MAR-2010, sequence version 2.
DT   25-MAY-2022, entry version 70.
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=ACLA_085410;
OS   Aspergillus clavatus (strain ATCC 1007 / CBS 513.65 / DSM 816 / NCTC 3887 /
OS   NRRL 1 / QM 1276 / 107).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC   Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC   Aspergillus subgen. Fumigati.
OX   NCBI_TaxID=344612;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 1007 / CBS 513.65 / DSM 816 / NCTC 3887 / NRRL 1;
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=EAW06846.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; DS027060; EAW06846.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; XP_001268272.1; XM_001268271.1.
DR   AlphaFoldDB; A1CU59; -.
DR   SMR; A1CU59; -.
DR   STRING; 5057.CADACLAP00007756; -.
DR   EnsemblFungi; EAW06846; EAW06846; ACLA_085410.
DR   GeneID; 4699767; -.
DR   KEGG; act:ACLA_085410; -.
DR   eggNOG; ENOG502RXA7; Eukaryota.
DR   OrthoDB; 1306131at2759; -.
DR   UniPathway; UPA00114; -.
DR   Proteomes; UP000006701; 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; IPR033123; GH11_dom.
DR   InterPro; IPR001137; Glyco_hydro_11.
DR   Pfam; PF00457; Glyco_hydro_11; 1.
DR   PRINTS; PR00911; GLHYDRLASE11.
DR   SUPFAM; SSF49899; SSF49899; 1.
DR   PROSITE; PS00776; GH11_1; 1.
DR   PROSITE; PS51761; GH11_3; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Glycosidase; Hydrolase;
KW   Polysaccharide degradation; Reference proteome; Secreted; Signal;
KW   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_0000393165"
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:0000250"
SQ   SEQUENCE   221 AA;  24058 MW;  45E7DBA2FEEFBAD8 CRC64;
     MVSFSSLALA LSTVVGVLAA PGSEKYVELA KHQLTHSQTG TKNGYYYSFW TDNRGQVSYT
     NGKGGQYSVN WKDCGNFVAG KGWNPASAKT VTYSGNWKPS GNSYVSVYGW TQNPLIEFYI
     VESFGSYNPS TGATELGTVE SDGGTYKIYK TKRVDAPSIE GKKTFDQFWS VRTSHRVGGT
     VTTKNHFNAW AKSGLKLGTF NYMILATEGY HSSGSATMTV S