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PGXB_ASPNC
ID   PGXB_ASPNC              Reviewed;         438 AA.
AC   A2QHG0;
DT   20-APR-2010, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   25-MAY-2022, entry version 59.
DE   RecName: Full=Probable exopolygalacturonase B;
DE            EC=3.2.1.67;
DE   AltName: Full=Galacturan 1,4-alpha-galacturonidase B;
DE   AltName: Full=Poly(1,4-alpha-D-galacturonide)galacturonohydrolase B;
DE   Flags: Precursor;
GN   Name=pgxB; ORFNames=An03g06740;
OS   Aspergillus niger (strain CBS 513.88 / FGSC A1513).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC   Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC   Aspergillus subgen. Circumdati.
OX   NCBI_TaxID=425011;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CBS 513.88 / FGSC A1513 / ATCC MYA-4892;
RX   PubMed=17259976; DOI=10.1038/nbt1282;
RA   Pel H.J., de Winde J.H., Archer D.B., Dyer P.S., Hofmann G., Schaap P.J.,
RA   Turner G., de Vries R.P., Albang R., Albermann K., Andersen M.R.,
RA   Bendtsen J.D., Benen J.A.E., van den Berg M., Breestraat S., Caddick M.X.,
RA   Contreras R., Cornell M., Coutinho P.M., Danchin E.G.J., Debets A.J.M.,
RA   Dekker P., van Dijck P.W.M., van Dijk A., Dijkhuizen L., Driessen A.J.M.,
RA   d'Enfert C., Geysens S., Goosen C., Groot G.S.P., de Groot P.W.J.,
RA   Guillemette T., Henrissat B., Herweijer M., van den Hombergh J.P.T.W.,
RA   van den Hondel C.A.M.J.J., van der Heijden R.T.J.M., van der Kaaij R.M.,
RA   Klis F.M., Kools H.J., Kubicek C.P., van Kuyk P.A., Lauber J., Lu X.,
RA   van der Maarel M.J.E.C., Meulenberg R., Menke H., Mortimer M.A.,
RA   Nielsen J., Oliver S.G., Olsthoorn M., Pal K., van Peij N.N.M.E.,
RA   Ram A.F.J., Rinas U., Roubos J.A., Sagt C.M.J., Schmoll M., Sun J.,
RA   Ussery D., Varga J., Vervecken W., van de Vondervoort P.J.J., Wedler H.,
RA   Woesten H.A.B., Zeng A.-P., van Ooyen A.J.J., Visser J., Stam H.;
RT   "Genome sequencing and analysis of the versatile cell factory Aspergillus
RT   niger CBS 513.88.";
RL   Nat. Biotechnol. 25:221-231(2007).
CC   -!- FUNCTION: Specific in hydrolyzing the terminal glycosidic bond of
CC       polygalacturonic acid and oligogalacturonates. {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[(1->4)-alpha-D-galacturonosyl](n) + H2O = [(1->4)-alpha-D-
CC         galacturonosyl](n-1) + alpha-D-galacturonate; Xref=Rhea:RHEA:14117,
CC         Rhea:RHEA-COMP:14570, Rhea:RHEA-COMP:14572, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:58658, ChEBI:CHEBI:140523; EC=3.2.1.67;
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the glycosyl hydrolase 28 family. {ECO:0000305}.
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DR   EMBL; AM270061; CAK38430.1; -; Genomic_DNA.
DR   AlphaFoldDB; A2QHG0; -.
DR   SMR; A2QHG0; -.
DR   CAZy; GH28; Glycoside Hydrolase Family 28.
DR   PaxDb; A2QHG0; -.
DR   EnsemblFungi; CAK38430; CAK38430; An03g06740.
DR   HOGENOM; CLU_016031_1_0_1; -.
DR   Proteomes; UP000006706; Chromosome 6R.
DR   GO; GO:0005576; C:extracellular region; ISS:UniProtKB.
DR   GO; GO:0047911; F:galacturan 1,4-alpha-galacturonidase activity; IEA:UniProtKB-EC.
DR   GO; GO:0004650; F:polygalacturonase activity; ISS:UniProtKB.
DR   GO; GO:0071555; P:cell wall organization; IEA:UniProtKB-KW.
DR   GO; GO:0045490; P:pectin catabolic process; ISS:UniProtKB.
DR   Gene3D; 2.160.20.10; -; 1.
DR   InterPro; IPR000743; Glyco_hydro_28.
DR   InterPro; IPR012334; Pectin_lyas_fold.
DR   InterPro; IPR011050; Pectin_lyase_fold/virulence.
DR   Pfam; PF00295; Glyco_hydro_28; 1.
DR   SUPFAM; SSF51126; SSF51126; 1.
PE   3: Inferred from homology;
KW   Cell wall biogenesis/degradation; Disulfide bond; Glycoprotein;
KW   Glycosidase; Hydrolase; Reference proteome; Repeat; Secreted; Signal.
FT   SIGNAL          1..15
FT                   /evidence="ECO:0000255"
FT   CHAIN           16..438
FT                   /note="Probable exopolygalacturonase B"
FT                   /id="PRO_5000219824"
FT   REPEAT          209..248
FT                   /note="PbH1 1"
FT   REPEAT          295..316
FT                   /note="PbH1 2"
FT   REPEAT          327..348
FT                   /note="PbH1 3"
FT   REPEAT          398..430
FT                   /note="PbH1 4"
FT   ACT_SITE        255
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        278
FT                   /evidence="ECO:0000250"
FT   CARBOHYD        118
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        185
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        225
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        263
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        275
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        302
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        329
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        354
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        366
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        400
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        407
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   DISULFID        257..274
FT                   /evidence="ECO:0000250"
FT   DISULFID        392..398
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   438 AA;  48383 MW;  C1BB7FECF39374D3 CRC64;
     MYLLPLTLFL TAAFGVSIPR SPLIPGAQIV PASSTADLRA IGAQHHKYPD RETVTIRASR
     NALDDVSSDF LWGLKQANHG GRLLLKQGET YVIGKKLDLT FLDNIEVQLE GEIQFTNNIT
     YWQANNFYYD FQKSITFWRW GGQDIKIFGS GVLNGNGQKW YDEFAGKQIL VYNTFYRPIL
     FLTDNATRIS VEGITQLNSP CWTNFFVRTN DVSFDNVYIH AFSTNASSDP ANTDGMDSLD
     VDGVSFTNMR IDVGDDCFSP KPNTTNIFVQ NMWCNNTHGV SMGSIGQYAG EMDIIENVYI
     ENVTLLNGQN GARLKAWAGQ DVGYGRINNV TYKNIQIQNT DAPIVLDQCY FDINATECAK
     YPSAVNITNI LFENIWGSSS GKDGKIVADL VCSPDAVCTN ITLSNVNLTS PKGTAEIVCD
     DIQGGIGVDC VSDESVTR
 
 
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