ID A0A6J3JA21_SAPAP Unreviewed; 370 AA.
AC A0A6J3JA21;
DT 07-OCT-2020, integrated into UniProtKB/TrEMBL.
DT 07-OCT-2020, sequence version 1.
DT 28-JAN-2026, entry version 25.
DE RecName: Full=(S)-2-hydroxy-acid oxidase {ECO:0000256|ARBA:ARBA00013087};
DE EC=1.1.3.15 {ECO:0000256|ARBA:ARBA00013087};
GN Name=HAO1 {ECO:0000313|RefSeq:XP_032151338.1};
OS Sapajus apella (Brown-capped capuchin) (Cebus apella).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Platyrrhini; Cebidae;
OC Cebinae; Sapajus.
OX NCBI_TaxID=9515 {ECO:0000313|Proteomes:UP000504640, ECO:0000313|RefSeq:XP_032151338.1};
RN [1] {ECO:0000313|RefSeq:XP_032151338.1}
RP IDENTIFICATION.
RC TISSUE=Blood {ECO:0000313|RefSeq:XP_032151338.1};
RG RefSeq;
RL Submitted (AUG-2025) to UniProtKB.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-hydroxyoctanoate + O2 = 2-oxooctanoate + H2O2;
CC Xref=Rhea:RHEA:67940, ChEBI:CHEBI:15379, ChEBI:CHEBI:16240,
CC ChEBI:CHEBI:133514, ChEBI:CHEBI:176689;
CC Evidence={ECO:0000256|ARBA:ARBA00029327};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:67941;
CC Evidence={ECO:0000256|ARBA:ARBA00029327};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a (2S)-2-hydroxycarboxylate + O2 = a 2-oxocarboxylate + H2O2;
CC Xref=Rhea:RHEA:16789, ChEBI:CHEBI:15379, ChEBI:CHEBI:16240,
CC ChEBI:CHEBI:35179, ChEBI:CHEBI:58123; EC=1.1.3.15;
CC Evidence={ECO:0000256|ARBA:ARBA00029325};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:16790;
CC Evidence={ECO:0000256|ARBA:ARBA00029325};
CC -!- COFACTOR:
CC Name=FMN; Xref=ChEBI:CHEBI:58210;
CC Evidence={ECO:0000256|ARBA:ARBA00001917};
CC -!- SUBCELLULAR LOCATION: Peroxisome {ECO:0000256|ARBA:ARBA00004275}.
CC -!- SIMILARITY: Belongs to the FMN-dependent alpha-hydroxy acid
CC dehydrogenase family. {ECO:0000256|ARBA:ARBA00024042}.
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DR RefSeq; XP_032151338.1; XM_032295447.1.
DR AlphaFoldDB; A0A6J3JA21; -.
DR GeneID; 116562924; -.
DR CTD; 54363; -.
DR Proteomes; UP000504640; Unplaced.
DR GO; GO:0005777; C:peroxisome; IEA:UniProtKB-SubCell.
DR GO; GO:0003973; F:(S)-2-hydroxy-acid oxidase activity; IEA:UniProtKB-EC.
DR GO; GO:0010181; F:FMN binding; IEA:InterPro.
DR CDD; cd02809; alpha_hydroxyacid_oxid_FMN; 1.
DR FunFam; 3.20.20.70:FF:000056; hydroxyacid oxidase 2; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR012133; Alpha-hydoxy_acid_DH_FMN.
DR InterPro; IPR000262; FMN-dep_DH.
DR InterPro; IPR037396; FMN_HAD.
DR InterPro; IPR008259; FMN_hydac_DH_AS.
DR PANTHER; PTHR10578:SF107; 2-HYDROXYACID OXIDASE 1; 1.
DR PANTHER; PTHR10578; S -2-HYDROXY-ACID OXIDASE-RELATED; 1.
DR Pfam; PF01070; FMN_dh; 1.
DR PIRSF; PIRSF000138; Al-hdrx_acd_dh; 1.
DR SUPFAM; SSF51395; FMN-linked oxidoreductases; 1.
DR PROSITE; PS00557; FMN_HYDROXY_ACID_DH_1; 1.
DR PROSITE; PS51349; FMN_HYDROXY_ACID_DH_2; 1.
PE 3: Inferred from homology;
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630, ECO:0000256|PIRSR:PIRSR000138-
KW 2}; FMN {ECO:0000256|ARBA:ARBA00022643, ECO:0000256|PIRSR:PIRSR000138-2};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002};
KW Peroxisome {ECO:0000256|ARBA:ARBA00023140};
KW Reference proteome {ECO:0000313|Proteomes:UP000504640}.
FT DOMAIN 1..365
FT /note="FMN hydroxy acid dehydrogenase"
FT /evidence="ECO:0000259|PROSITE:PS51349"
FT ACT_SITE 260
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-1"
FT BINDING 26
FT /ligand="glyoxylate"
FT /ligand_id="ChEBI:CHEBI:36655"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 79..81
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 108
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 130
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 132
FT /ligand="glyoxylate"
FT /ligand_id="ChEBI:CHEBI:36655"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 158
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 167
FT /ligand="glyoxylate"
FT /ligand_id="ChEBI:CHEBI:36655"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 236
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 258
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 260
FT /ligand="glyoxylate"
FT /ligand_id="ChEBI:CHEBI:36655"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 263
FT /ligand="glyoxylate"
FT /ligand_id="ChEBI:CHEBI:36655"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 291..295
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
FT BINDING 314..315
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|PIRSR:PIRSR000138-2"
SQ SEQUENCE 370 AA; 40961 MW; C06FE4F688900DB7 CRC64;
MLPRLVCIND YEQHAKSVLP KSIYDYYRSG ANDEETLADN IAAFSRWKLY PRMLRNVADT
DLSTSVLGQR VSMPICVGAT AMQRMAHVDG ELATVRACRS LGTGMMLSSW ATSSIEEVAE
AGPEALRWLQ LYIYKDREVT KRLVQQAEKT GYKAIFVTVD TPYLGNRLDD VRNRFKLPPQ
LRMKNFENNT LSFSPEENFG DDSGLAAYVA KAIDPSINWE DIKWLRRLTS LPIVAKGILR
GDDAREAVKH GLNGILVSNH GARQLDGVPA TIDALPEIVE AVEGKVEVFL DGGVRKGTDV
LKALALGAKA VFVGRPVIWG LAFQGEKGVR DVLEILKEEF RLAMALSGCQ NVKVIDKTLV
RKNPLAVSKI
//
