Amplification and sequencing of mRNA encoding acidic fibroblast growth factor (aFGF) from porcine heart.

Progredient stenosis of coronary arteries can induce angiogenic processes, which are probably regulated by polypeptide growth factors like aFGF. Using applications of reverse transcription-polymerase chain reaction, we amplified and sequenced an mRNA encoding aFGF in the porcine myocardium. A DNA fragment of expected size encoding aFGF was amplified with human and bovine aFGF specific oligonucleotide primers in porcine heart. Identity of amplified PCR product to aFGF sequence was confirmed by internal reamplification, Southern hybridization and sequencing of asymmetrically amplified PCR products. The nucleotide sequence analysis of porcine aFGF revealed a homology of 94% to the human and 92% to the bovine cDNA sequences respectively. The amino acid sequence was homologous to the known sequences except for three alterations in the human and thirteen in the bovine aFGF sequences.

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