Oligodeoxyribonucleotide ligation to single-stranded cDNA (SLIC) and polyme
rase chain reaction (PCR) techniques were used to clone an entire dog gastr
ic lipase (DGL) cDNA. The size of the cDNA is confirmed by Northern blot an
alysis. The DGL is synthesized as a 379-amino acid mature polypeptide with
a molecular mass of 43176 Da which is preceded by a 19-amino acid signal se
quence located at the NH2-terminus. Comparison of the signal sequences reve
als a high degree of similitude between the DGL, the human gastric lipase (
HGL), the rabbit gastric lipase (RGL) and the rat lingual lipase (RLL).