Cloning and cDNA sequence of the dihydrolipoamide dehydrogenase component of human. cap alpha. -ketoacid dehydrogenase complexes

Journal Article · Tue Mar 01 00:00:00 EST 1988 · Proc. Natl. Acad. Sci. U.S.A.; (United States)

DOI:https://doi.org/10.1073/pnas.85.5.1422· OSTI ID:6659743

Pons, G; Raefsky-Estrin, C; Carothers, D J; Pepin, R A; Javed, A A; Jesse, B W; Ganapathi, M K; Samols, D; Patel, M S

cDNA clones comprising the entire coding region for human dihydrolipoamide dehydrogenase have been isolated from a human liver cDNA library. The cDNA sequence of the largest clone consisted of 2082 base pairs and contained a 1527-base open reading frame that encodes a precursor dihydrolipoamide dehydrogenase of 509 amino acid residues. The first 35-amino acid residues of the open reading frame probably correspond to a typical mitochondrial import leader sequence. The predicted amino acid sequence of the mature protein, starting at the residue number 36 of the open reading frame, is almost identical (>98% homology) with the known partial amino acid sequence of the pig heart dihydrolipoamide dehydrogenase. The cDNA clone also contains a 3' untranslated region of 505 bases with an unusual polyadenylylation signal (TATAAA) and a short poly(A) track. By blot-hybridization analysis with the cDNA as probe, two mRNAs, 2.2 and 2.4 kilobases in size, have been detected in human tissues and fibroblasts, whereas only one mRNA (2.4 kilobases) was detected in rat tissues.

• Research Organization: Case Western Reserve Univ. School of Medicine, Cleveland, OH (USA)
• OSTI ID: 6659743
• Journal Information: Proc. Natl. Acad. Sci. U.S.A.; (United States), Vol. 85:5
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
OXIDOREDUCTASES
AMINO ACID SEQUENCE
RECOMBINANT DNA
DNA SEQUENCING
BIOLOGICAL EVOLUTION
BRAIN
DNA-CLONING
ELECTROPHORESIS
FIBROBLASTS
HEART
HYBRIDIZATION
IMMUNE SERUMS
KIDNEYS
MAN
MESSENGER-RNA
RATS
ANIMAL CELLS
ANIMALS
BODY
CARDIOVASCULAR SYSTEM
CENTRAL NERVOUS SYSTEM
CLONING
CONNECTIVE TISSUE CELLS
DNA
DNA HYBRIDIZATION
ENZYMES
MAMMALS
MOLECULAR STRUCTURE
NERVOUS SYSTEM
NUCLEIC ACIDS
ORGANIC COMPOUNDS
ORGANS
PRIMATES
RNA
RODENTS
SOMATIC CELLS
STRUCTURAL CHEMICAL ANALYSIS
VERTEBRATES
550201* - Biochemistry- Tracer Techniques