RRAAH_ACIAD
ID RRAAH_ACIAD Reviewed; 170 AA.
AC Q6FCF4;
DT 15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 19-JUL-2004, sequence version 1.
DT 03-AUG-2022, entry version 100.
DE RecName: Full=Putative 4-hydroxy-4-methyl-2-oxoglutarate aldolase;
DE Short=HMG aldolase;
DE EC=4.1.3.17;
DE AltName: Full=Oxaloacetate decarboxylase;
DE Short=OAA decarboxylase;
DE EC=4.1.1.112;
DE AltName: Full=Regulator of ribonuclease activity homolog;
DE AltName: Full=RraA-like protein;
GN OrderedLocusNames=ACIAD1391;
OS Acinetobacter baylyi (strain ATCC 33305 / BD413 / ADP1).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC Acinetobacter.
OX NCBI_TaxID=62977;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33305 / BD413 / ADP1;
RX PubMed=15514110; DOI=10.1093/nar/gkh910;
RA Barbe V., Vallenet D., Fonknechten N., Kreimeyer A., Oztas S., Labarre L.,
RA Cruveiller S., Robert C., Duprat S., Wincker P., Ornston L.N.,
RA Weissenbach J., Marliere P., Cohen G.N., Medigue C.;
RT "Unique features revealed by the genome sequence of Acinetobacter sp. ADP1,
RT a versatile and naturally transformation competent bacterium.";
RL Nucleic Acids Res. 32:5766-5779(2004).
CC -!- FUNCTION: Catalyzes the aldol cleavage of 4-hydroxy-4-methyl-2-
CC oxoglutarate (HMG) into 2 molecules of pyruvate. Also contains a
CC secondary oxaloacetate (OAA) decarboxylase activity due to the common
CC pyruvate enolate transition state formed following C-C bond cleavage in
CC the retro-aldol and decarboxylation reactions (By similarity).
CC {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=4-hydroxy-4-methyl-2-oxoglutarate = 2 pyruvate;
CC Xref=Rhea:RHEA:22748, ChEBI:CHEBI:15361, ChEBI:CHEBI:58276;
CC EC=4.1.3.17;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + oxaloacetate = CO2 + pyruvate; Xref=Rhea:RHEA:15641,
CC ChEBI:CHEBI:15361, ChEBI:CHEBI:15378, ChEBI:CHEBI:16452,
CC ChEBI:CHEBI:16526; EC=4.1.1.112;
CC -!- COFACTOR:
CC Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240;
CC Evidence={ECO:0000250};
CC Note=Divalent metal cation. {ECO:0000250};
CC -!- SUBUNIT: Homotrimer. {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the class II aldolase/RraA-like family.
CC {ECO:0000305}.
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DR EMBL; CR543861; CAG68257.1; -; Genomic_DNA.
DR RefSeq; WP_004925622.1; NC_005966.1.
DR AlphaFoldDB; Q6FCF4; -.
DR SMR; Q6FCF4; -.
DR STRING; 62977.ACIAD1391; -.
DR EnsemblBacteria; CAG68257; CAG68257; ACIAD1391.
DR GeneID; 45233806; -.
DR KEGG; aci:ACIAD1391; -.
DR eggNOG; COG0684; Bacteria.
DR HOGENOM; CLU_072626_4_0_6; -.
DR OMA; RSCDTQF; -.
DR OrthoDB; 1614890at2; -.
DR BioCyc; ASP62977:ACIAD_RS06420-MON; -.
DR Proteomes; UP000000430; Chromosome.
DR GO; GO:0047443; F:4-hydroxy-4-methyl-2-oxoglutarate aldolase activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0008948; F:oxaloacetate decarboxylase activity; IEA:UniProtKB-EC.
DR GO; GO:0008428; F:ribonuclease inhibitor activity; IEA:InterPro.
DR GO; GO:0051252; P:regulation of RNA metabolic process; IEA:InterPro.
DR CDD; cd16841; RraA_family; 1.
DR InterPro; IPR010203; RraA.
DR InterPro; IPR005493; RraA/RraA-like.
DR InterPro; IPR036704; RraA/RraA-like_sf.
DR Pfam; PF03737; RraA-like; 1.
DR SUPFAM; SSF89562; SSF89562; 1.
DR TIGRFAMs; TIGR01935; NOT-MenG; 1.
PE 3: Inferred from homology;
KW Lyase; Metal-binding; Reference proteome.
FT CHAIN 1..170
FT /note="Putative 4-hydroxy-4-methyl-2-oxoglutarate aldolase"
FT /id="PRO_0000209601"
FT BINDING 85..88
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 107
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 108
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250"
SQ SEQUENCE 170 AA; 18401 MW; D552EABA5CB4105E CRC64;
MTTTVPFVTC DLLDDHTDKD IQVLTPSLDG RFFKSYGARK IFSGQIVTVK CFEDNSRVKE
LLATDGTGKV LVVDGGASMR CALMGDMIAE SAVKYHWDGV VIYGCIRDVD ALAELDLGIH
ALAAIPQKSN RQGIGEVGVN LYFGGVTFQA GCYIYADNNG IIVSKQKLID