ID   HOA2_AZOSB              Reviewed;         342 AA.
AC   A1K6Y4;
DT   03-NOV-2009, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=4-hydroxy-2-oxovalerate aldolase 2 {ECO:0000255|HAMAP-Rule:MF_01656};
DE            Short=HOA 2 {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 2 {ECO:0000255|HAMAP-Rule:MF_01656};
DE   AltName: Full=4-hydroxy-2-oxopentanoate aldolase 2 {ECO:0000255|HAMAP-Rule:MF_01656};
GN   Name=mhpE; OrderedLocusNames=azo1972;
OS   Azoarcus sp. (strain BH72).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Rhodocyclales; Zoogloeaceae;
OC   Azoarcus.
OX   NCBI_TaxID=418699;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BH72;
RX   PubMed=17057704; DOI=10.1038/nbt1243;
RA   Krause A., Ramakumar A., Bartels D., Battistoni F., Bekel T., Boch J.,
RA   Boehm M., Friedrich F., Hurek T., Krause L., Linke B., McHardy A.C.,
RA   Sarkar A., Schneiker S., Syed A.A., Thauer R., Vorhoelter F.-J.,
RA   Weidner S., Puehler A., Reinhold-Hurek B., Kaiser O., Goesmann A.;
RT   "Complete genome of the mutualistic, N2-fixing grass endophyte Azoarcus sp.
RT   strain BH72.";
RL   Nat. Biotechnol. 24:1385-1391(2006).
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; AM406670; CAL94589.1; -; Genomic_DNA.
DR   RefSeq; WP_011765705.1; NC_008702.1.
DR   AlphaFoldDB; A1K6Y4; -.
DR   SMR; A1K6Y4; -.
DR   STRING; 62928.azo1972; -.
DR   EnsemblBacteria; CAL94589; CAL94589; azo1972.
DR   KEGG; azo:azo1972; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_049173_0_0_4; -.
DR   OMA; YVGGQED; -.
DR   OrthoDB; 840579at2; -.
DR   Proteomes; UP000002588; Chromosome.
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;
KW   Reference proteome.
FT   CHAIN           1..342
FT                   /note="4-hydroxy-2-oxovalerate aldolase 2"
FT                   /id="PRO_0000387781"
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   342 AA;  36453 MW;  4C507BC65EB5E8DB CRC64;
     MDLRGTRITV HDMTLRDGMH PKRHLMTLEQ MKTIAQGLDQ AGIPLIEVTH GDGLGGSSVN
     YGFPAHTDEE YLGAVIPLMK QAKVSALLLP GIGTVDHLKM AHELGVNTIR VATHCTEADV
     SEQHISYARK LGMDTVGFLM MAHMNSPEGL VQQAKLMESY GANCIYVTDS AGHLLPDTVK
     ARISAVRDAL KPETELGFHG HHNLAMGVAN SIAAIEAGAT RIDAAAAGLG AGAGNTPMEV
     LIAVCDLMGI ETGVDVFKIQ DVAEDLVVPI MDFPIRIDRD ALTLGYAGVY GSFLLFAKRA
     EKKYGVPARE ILVEMGRRGM VGGQEDMIED TAITLAKASA AA