RGD Reference Report - Rat ATP citrate-lyase. Molecular cloning and sequence analysis of a full-length cDNA and mRNA abundance as a function of diet, organ, and age. - Rat Genome Database

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Rat ATP citrate-lyase. Molecular cloning and sequence analysis of a full-length cDNA and mRNA abundance as a function of diet, organ, and age.

Authors: Elshourbagy, NA  Near, JC  Kmetz, PJ  Sathe, GM  Southan, C  Strickler, JE  Gross, M  Young, JF  Wells, TN  Groot, PH 
Citation: Elshourbagy NA, etal., J Biol Chem 1990 Jan 25;265(3):1430-5.
RGD ID: 631761
Pubmed: PMID:2295639   (View Abstract at PubMed)

ATP citrate-lyase is the primary enzyme responsible for the synthesis of cytosolic acetyl-CoA in many tissues. We have isolated a full-length cDNA copy of 4.3 kilobase pairs encoding the ATP-citrate lyase mRNA by screening rat liver cDNA library using oligonucleotide probes designed from peptide sequences obtained from the purified rat enzyme. Expression of this cDNA in bacteria, followed by immunoblotting with antibody directed against the ATP citrate-lyase, further demonstrated the identity of this clone. Nucleic acid sequence data indicate that the cDNA contains the complete coding region for the enzyme, which is 1100 amino acids in length with a calculated molecular weight of 121,293. RNA blot analysis indicated an mRNA species of about 4.3 kilobase pairs in livers of chow-fed rats. Rats maintained on low fat, high carbohydrate diets exhibited a striking increase (50-fold) in the level of liver ATP citrate-lyase mRNA as compared with the control animals maintained on a normal diet. The tissue distribution of this mRNA in chow-fed animals revealed a relatively high abundance of the message in liver and adrenal, moderate levels were found in lung, brain, and large intestine with only trace amounts of the message in small intestine, stomach, testis, spleen, pancreas, kidney, and heart. During rat development, the ATP citrate-lyase mRNA was relatively high in the liver at parturition, followed by a reduction in its level during suckling. Higher amounts of the mRNA were detected again in adult animals. The isolation and characterization of the mRNA for ATP citrate-lyase will allow further studies on the reaction mechanism and metabolic regulation of this key enzyme in lipogenesis and cholesterogenesis.

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
acetyl-CoA biosynthetic process  NAS 631761 RGD 

Molecular Function
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
ATP citrate synthase activity  IDA 631761 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Acly  (ATP citrate lyase)


Additional Information