OXLA_BOTCO
ID OXLA_BOTCO Reviewed; 15 AA.
AC P0DMG8;
DT 16-APR-2014, integrated into UniProtKB/Swiss-Prot.
DT 16-APR-2014, sequence version 1.
DT 25-MAY-2022, entry version 12.
DE RecName: Full=L-amino-acid oxidase Bco23 {ECO:0000303|PubMed:18760386};
DE Short=LAAO;
DE Short=LAO {ECO:0000303|PubMed:18760386};
DE EC=1.4.3.2 {ECO:0000250|UniProtKB:P81382};
DE Flags: Fragment;
OS Bothrops cotiara (Cotiara) (Rhinocerophis cotiara).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC Serpentes; Colubroidea; Viperidae; Crotalinae; Bothrops.
OX NCBI_TaxID=8727;
RN [1]
RP PROTEIN SEQUENCE, IDENTIFICATION BY MASS SPECTROMETRY, AND SUBCELLULAR
RP LOCATION.
RC TISSUE=Venom;
RX PubMed=18760386; DOI=10.1016/j.jprot.2008.07.007;
RA Tashima A.K., Sanz L., Camargo A.C., Serrano S.M., Calvete J.J.;
RT "Snake venomics of the Brazilian pitvipers Bothrops cotiara and Bothrops
RT fonsecai. Identification of taxonomy markers.";
RL J. Proteomics 71:473-485(2008).
CC -!- FUNCTION: Catalyzes an oxidative deamination of predominantly
CC hydrophobic and aromatic L-amino acids, thus producing hydrogen
CC peroxide that may contribute to the diverse toxic effects of this
CC enzyme. Exhibits diverse biological activities, such as hemorrhage,
CC hemolysis, edema, apoptosis of vascular endothelial cells or tumor cell
CC lines, antibacterial and antiparasitic activities, as well as
CC regulation of platelet aggregation. Effects of snake L-amino oxidases
CC on platelets are controversial, since they either induce aggregation or
CC inhibit agonist-induced aggregation. These different effects are
CC probably due to different experimental conditions.
CC {ECO:0000250|UniProtKB:P0CC17}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=an L-alpha-amino acid + H2O + O2 = a 2-oxocarboxylate + H2O2 +
CC NH4(+); Xref=Rhea:RHEA:13781, ChEBI:CHEBI:15377, ChEBI:CHEBI:15379,
CC ChEBI:CHEBI:16240, ChEBI:CHEBI:28938, ChEBI:CHEBI:35179,
CC ChEBI:CHEBI:59869; EC=1.4.3.2;
CC Evidence={ECO:0000250|UniProtKB:P81382};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000250|UniProtKB:P81382};
CC -!- SUBUNIT: Homodimer; non-covalently linked.
CC {ECO:0000250|UniProtKB:P81382}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000269|PubMed:18760386}.
CC -!- TISSUE SPECIFICITY: Expressed by the venom gland.
CC {ECO:0000305|PubMed:18760386}.
CC -!- PTM: Contains 2 disulfide bonds. {ECO:0000250|UniProtKB:P81382}.
CC -!- PTM: N-glycosylated. {ECO:0000250|UniProtKB:P81382}.
CC -!- SIMILARITY: Belongs to the flavin monoamine oxidase family. FIG1
CC subfamily. {ECO:0000305}.
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DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0001716; F:L-amino-acid oxidase activity; IEA:UniProtKB-EC.
DR GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR GO; GO:0006915; P:apoptotic process; IEA:UniProtKB-KW.
DR GO; GO:0044179; P:hemolysis in another organism; IEA:UniProtKB-KW.
PE 1: Evidence at protein level;
KW Apoptosis; Cytolysis; Direct protein sequencing; Disulfide bond; FAD;
KW Flavoprotein; Glycoprotein; Hemolysis; Hemostasis impairing toxin;
KW Oxidoreductase; Secreted; Toxin.
FT CHAIN 1..>15
FT /note="L-amino-acid oxidase Bco23"
FT /id="PRO_0000428808"
FT NON_TER 15
FT /evidence="ECO:0000303|PubMed:18760386"
SQ SEQUENCE 15 AA; 1810 MW; 7588E7B5C7CEBF1E CRC64;
ADDRNPLEEC FRETD