O. Hill et al., A NEW HUMAN GUANYLATE CYCLASE-ACTIVATING PEPTIDE (GCAP-II, UROGUANYLIN) - PRECURSOR CDNA AND COLONIC EXPRESSION, Biochimica et biophysica acta. Protein structure and molecular enzymology, 1253(2), 1995, pp. 146-149
We have amplified, cloned, and sequenced 583 bp GCAP-II/uroguanylin-sp
ecific cDNA from human colon cDNA first strand. The cDNA codes for a p
utative 112 amino-acid precursor protein including the sequence of uro
guanylin and GCAP-II. Northern blot hybridization revealed a high leve
l expression of the GCAP-II gene in human colon, but not in the kidney
. This expression of GCAP-II indicates a pivotal role in cGMP-mediated
functions of the colon.