RGD Reference Report - Purification and characterization of methylmalonate-semialdehyde dehydrogenase from rat liver. Identity to malonate-semialdehyde dehydrogenase. - Rat Genome Database

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Purification and characterization of methylmalonate-semialdehyde dehydrogenase from rat liver. Identity to malonate-semialdehyde dehydrogenase.

Authors: Goodwin, GW  Rougraff, PM  Davis, EJ  Harris, RA 
Citation: Goodwin GW, etal., J Biol Chem. 1989 Sep 5;264(25):14965-71.
RGD ID: 1599052
Pubmed: PMID:2768248   (View Abstract at PubMed)

Methylmalonate semialdehyde dehydrogenase was purified from rat liver in order to define the distal portion of valine catabolism and related pathways in mammals. The purified enzyme is active with malonate semialdehyde and consumes both stereoisomers of methylmalonate semialdehyde, implicating a single semialdehyde dehydrogenase in the catabolism of valine, thymine, and compounds catabolized by way of beta-alanine. The oxidation of malonate and methylmalonate semialdehydes by this enzyme is CoA-dependent, the products being acetyl-CoA and propionyl-CoA, respectively. Expected activity with ethylmalonate semialdehyde as substrate was not found. Methylmalonate semialdehyde dehydrogenase was separated on DEAE-Sephacel into two isoforms which differ in mobility during nondenaturing polyacrylamide gel electrophoresis. The two forms are immunologically cross-reactive and exhibit the same N-terminal sequence, suggesting that one form is the product of the other. The monomer molecular mass, determined by polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate, was 58 kDa. The native molecular mass, estimated by gel filtration, was 250 kDa, suggesting a tetrameric structure.



Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Aldh6a1Ratbeta-alanine catabolic process  IDA  RGD 
Aldh6a1RatL-valine catabolic process  IDA  RGD 
Aldh6a1Ratthymine catabolic process  IDA  RGD 
Aldh6a1Ratthymine metabolic process involved_inIDA PMID:2768248UniProt 
Aldh6a1Ratvaline metabolic process involved_inIDA PMID:2768248UniProt 

Molecular Function

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Aldh6a1Ratmethylmalonate-semialdehyde dehydrogenase (acylating, NAD) activity enablesIDA PMID:2768248UniProt 
Aldh6a1Ratmethylmalonate-semialdehyde dehydrogenase (acylating, NAD) activity  IDA  RGD 

Objects Annotated

Genes (Rattus norvegicus)
Aldh6a1  (aldehyde dehydrogenase 6 family, member A1)


Additional Information