Molecular forms of glucagon-like peptide-1 in human pancreas and glucagonomas

LO Uttenthel, M Ghiglione, SK George… - The Journal of …, 1985 - academic.oup.com
The structure of human preproglucagon, as deduced from nucleotide sequencing of the
preproglucagon gene, contains two glucagon-like peptides (GLP-1 and GLP-2) in the
portion C-terminal to glucagon. A rabbit antiserum was raised against synthetic GLP-1-(1–
19) which had 20% cross-reactivity with synthetic GLP-1 and des-Gly37-GLP-l amide, two
possible forms of the GLP-1 whole molecule, but no significant crossreactivity with glucagon
or other pancreatic peptides. Immunocytochemistry revealed that the distribution of GLP-1-(1 …

Molecular forms of glucagon‐like peptides in man

SK George, LO Uttenthal, M Ghiglione… - FEBS letters, 1985 - Wiley Online Library
Molecular forms of the glucagon‐like peptides (GLP) encoded by the human
preproglucagon gene were analysed by chromatography combined with specific
radioimmunoassays to the synthetic peptides. Whereas extracts of human pancreas and a
glucagonoma contained a large proglucagon cleavage product possessing both GLP‐1 and
GLP‐2 immunoreactivities, extracts of human intestine contained products corresponding to
free GLP‐1 and a small amount ofchromatographically distinct GLP‐2 immunoreactivity. It is …