ID   ABNA_ASPOR              Reviewed;         319 AA.
AC   Q2U8C6;
DT   15-JUN-2010, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   25-MAY-2022, entry version 78.
DE   RecName: Full=Probable arabinan endo-1,5-alpha-L-arabinosidase A;
DE            EC=3.2.1.99;
DE   AltName: Full=Endo-1,5-alpha-L-arabinanase A;
DE            Short=ABN A;
DE   Flags: Precursor;
GN   Name=abnA; ORFNames=AO090701000481;
OS   Aspergillus oryzae (strain ATCC 42149 / RIB 40) (Yellow koji mold).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC   Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC   Aspergillus subgen. Circumdati.
OX   NCBI_TaxID=510516;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 42149 / RIB 40;
RX   PubMed=16372010; DOI=10.1038/nature04300;
RA   Machida M., Asai K., Sano M., Tanaka T., Kumagai T., Terai G., Kusumoto K.,
RA   Arima T., Akita O., Kashiwagi Y., Abe K., Gomi K., Horiuchi H.,
RA   Kitamoto K., Kobayashi T., Takeuchi M., Denning D.W., Galagan J.E.,
RA   Nierman W.C., Yu J., Archer D.B., Bennett J.W., Bhatnagar D.,
RA   Cleveland T.E., Fedorova N.D., Gotoh O., Horikawa H., Hosoyama A.,
RA   Ichinomiya M., Igarashi R., Iwashita K., Juvvadi P.R., Kato M., Kato Y.,
RA   Kin T., Kokubun A., Maeda H., Maeyama N., Maruyama J., Nagasaki H.,
RA   Nakajima T., Oda K., Okada K., Paulsen I., Sakamoto K., Sawano T.,
RA   Takahashi M., Takase K., Terabayashi Y., Wortman J.R., Yamada O.,
RA   Yamagata Y., Anazawa H., Hata Y., Koide Y., Komori T., Koyama Y.,
RA   Minetoki T., Suharnan S., Tanaka A., Isono K., Kuhara S., Ogasawara N.,
RA   Kikuchi H.;
RT   "Genome sequencing and analysis of Aspergillus oryzae.";
RL   Nature 438:1157-1161(2005).
CC   -!- FUNCTION: Endo-1,5-alpha-L-arabinanase involved in degradation of
CC       pectin. Its preferred substrate is linear 1,5-alpha-L-arabinan (By
CC       similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endohydrolysis of (1->5)-alpha-arabinofuranosidic linkages in
CC         (1->5)-arabinans.; EC=3.2.1.99;
CC   -!- PATHWAY: Glycan metabolism; L-arabinan degradation.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the glycosyl hydrolase 43 family. {ECO:0000305}.
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DR   EMBL; AP007164; BAE62189.1; -; Genomic_DNA.
DR   RefSeq; XP_001823322.1; XM_001823270.1.
DR   AlphaFoldDB; Q2U8C6; -.
DR   SMR; Q2U8C6; -.
DR   CAZy; GH43; Glycoside Hydrolase Family 43.
DR   EnsemblFungi; BAE62189; BAE62189; AO090701000481.
DR   GeneID; 5995379; -.
DR   KEGG; aor:AO090701000481; -.
DR   VEuPathDB; FungiDB:AO090701000481; -.
DR   HOGENOM; CLU_009397_5_0_1; -.
DR   OMA; KNDPWAP; -.
DR   UniPathway; UPA00667; -.
DR   Proteomes; UP000006564; Chromosome 5.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0046558; F:arabinan endo-1,5-alpha-L-arabinosidase activity; IEA:UniProtKB-EC.
DR   GO; GO:0031222; P:arabinan catabolic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0045493; P:xylan catabolic process; IEA:UniProtKB-KW.
DR   Gene3D; 2.115.10.20; -; 1.
DR   InterPro; IPR006710; Glyco_hydro_43.
DR   InterPro; IPR016840; Glyco_hydro_43_endo_a_Ara-ase.
DR   InterPro; IPR023296; Glyco_hydro_beta-prop_sf.
DR   Pfam; PF04616; Glyco_hydro_43; 1.
DR   PIRSF; PIRSF026534; Endo_alpha-L-arabinosidase; 1.
DR   SUPFAM; SSF75005; SSF75005; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Glycoprotein; Glycosidase; Hydrolase;
KW   Polysaccharide degradation; Reference proteome; Secreted; Signal;
KW   Xylan degradation.
FT   SIGNAL          1..19
FT                   /evidence="ECO:0000255"
FT   CHAIN           20..319
FT                   /note="Probable arabinan endo-1,5-alpha-L-arabinosidase A"
FT                   /id="PRO_0000394621"
FT   ACT_SITE        34
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000250|UniProtKB:P94522"
FT   ACT_SITE        198
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250|UniProtKB:P94522"
FT   SITE            147
FT                   /note="Important for catalytic activity, responsible for
FT                   pKa modulation of the active site Glu and correct
FT                   orientation of both the proton donor and substrate"
FT                   /evidence="ECO:0000250|UniProtKB:P94522"
FT   CARBOHYD        53
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   319 AA;  34094 MW;  5861C4ECF5978DF4 CRC64;
     MYLQSSLALV LLRAAVVHGY ANPGACSGAC NIHDPSLIQN GDGTYYRFST GNNISFASAS
     SIEGPWTALG SVLPGGSSID NSGRYDPWAP DVQKVGDLYY LYYAVSSFGT QESAIGLATS
     ETMEEGTWTD KGSIVTSTTG DQYNAIDANL LVDGSANYLT FGSFWQDIFQ VTLNGDATSS
     TSTPVNVAFD PATTHPVEGA YLYKYGDYYY LFYSWGTCCG YDTSRPAEGE EYKIKVCRSS
     TPTGNFVDAS GVACTDGGGT VVLESHDNVY GPGGQGVYTD PNLGPVLYYH YVDTTIGYAD
     SQKLFGWNAI DFSSGWPSV