ID   HOA_POLNA               Reviewed;         346 AA.
AC   A1VUV1;
DT   03-NOV-2009, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=4-hydroxy-2-oxovalerate aldolase {ECO:0000255|HAMAP-Rule:MF_01656};
DE            Short=HOA {ECO:0000255|HAMAP-Rule:MF_01656};
DE            EC=4.1.3.39 {ECO:0000255|HAMAP-Rule:MF_01656};
DE   AltName: Full=4-hydroxy-2-keto-pentanoic acid aldolase {ECO:0000255|HAMAP-Rule:MF_01656};
DE   AltName: Full=4-hydroxy-2-oxopentanoate aldolase {ECO:0000255|HAMAP-Rule:MF_01656};
GN   OrderedLocusNames=Pnap_4142;
OS   Polaromonas naphthalenivorans (strain CJ2).
OG   Plasmid pPNAP01.
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Polaromonas.
OX   NCBI_TaxID=365044;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CJ2;
RX   PubMed=19453698; DOI=10.1111/j.1462-2920.2009.01947.x;
RA   Yagi J.M., Sims D., Brettin T., Bruce D., Madsen E.L.;
RT   "The genome of Polaromonas naphthalenivorans strain CJ2, isolated from coal
RT   tar-contaminated sediment, reveals physiological and metabolic versatility
RT   and evolution through extensive horizontal gene transfer.";
RL   Environ. Microbiol. 11:2253-2270(2009).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-4-hydroxy-2-oxopentanoate = acetaldehyde + pyruvate;
CC         Xref=Rhea:RHEA:22624, ChEBI:CHEBI:15343, ChEBI:CHEBI:15361,
CC         ChEBI:CHEBI:73143; EC=4.1.3.39; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01656};
CC   -!- SIMILARITY: Belongs to the 4-hydroxy-2-oxovalerate aldolase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01656}.
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DR   EMBL; CP000530; ABM39429.1; -; Genomic_DNA.
DR   RefSeq; WP_011797808.1; NC_008757.1.
DR   AlphaFoldDB; A1VUV1; -.
DR   SMR; A1VUV1; -.
DR   EnsemblBacteria; ABM39429; ABM39429; Pnap_4142.
DR   KEGG; pna:Pnap_4142; -.
DR   HOGENOM; CLU_049173_0_0_4; -.
DR   OMA; DLYKMMD; -.
DR   OrthoDB; 840579at2; -.
DR   Proteomes; UP000000644; Plasmid pPNAP01.
DR   GO; GO:0008701; F:4-hydroxy-2-oxovalerate aldolase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019439; P:aromatic compound catabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd07943; DRE_TIM_HOA; 1.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_01656; HOA; 1.
DR   InterPro; IPR017629; 4OH_2_O-val_aldolase.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR012425; DmpG_comm.
DR   InterPro; IPR035685; DRE_TIM_HOA.
DR   InterPro; IPR000891; PYR_CT.
DR   Pfam; PF07836; DmpG_comm; 1.
DR   Pfam; PF00682; HMGL-like; 1.
DR   TIGRFAMs; TIGR03217; 4OH_2_O_val_ald; 1.
DR   PROSITE; PS50991; PYR_CT; 1.
PE   3: Inferred from homology;
KW   Aromatic hydrocarbons catabolism; Lyase; Manganese; Metal-binding; Plasmid;
KW   Reference proteome.
FT   CHAIN           1..346
FT                   /note="4-hydroxy-2-oxovalerate aldolase"
FT                   /id="PRO_0000387877"
FT   DOMAIN          8..260
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
FT   ACT_SITE        20
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
FT   BINDING         16..17
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
FT   BINDING         17
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
FT   BINDING         170
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
FT   BINDING         199
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
FT   BINDING         199
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
FT   BINDING         201
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
FT   BINDING         290
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
FT   SITE            16
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01656"
SQ   SEQUENCE   346 AA;  36637 MW;  ACE116EFAE5A85B9 CRC64;
     MNLQGKQVTV HDMTLRDGMH PKRHLMTLDQ MKSIACGLDA AGVPLIEVTH GDGLGGSSVN
     YGFPAHTDEE YLGAVIPLMK QAKVSALLIP GIGTVEHLLM AKDLGVGTIR VATHCTEADV
     SEQHITKSRA LGLDTVGFLM MAHMASPEKL VSQALLMQGY GANCIYVTDS AGYMLPDDVK
     ARLGAVRAAL KPETELGFHG HHNMAMGVAN SIAAIEAGAN RIDAAAAGLG AGAGNTPMEV
     FIAVCARMGI ETGVDVFKIQ DVAEDLVVPI MDHIIRIDRD SLTLGYAGVY SSFLLFAKRA
     SVKYGVPARD ILVELGRRGM VGGQEDMIED TAMTMARERG LTLAAA