Summary
Both during synthesis and storage as well as handling of gastrin- and cholecystokinin-peptides serious difficulties related to a sequence-dependent high reactivity of various side chain functions were encountered. Thus, methods were devised to bypass or at least control side reactions along the synthetic routes, and analogs were designed to enhance the stability of the peptide factors with concomitant retainment of full hormonal potency. The access of these gastrin- and cholecystokinin-peptides allowed intensive physiological, biological and conformational studies aimed at a better understanding of the mechanism of action of this class of hormones. Additional attention was paid to particular derivatives well suited to improve the immunochemical methods as needed for a deeper insight into the physiological significance of the remarkable heterogeneity of these gut hormones.
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Abbreviations
- Mox:
-
methoxinine (oxa-analog of methionine)
- DCC:
-
dicylo-hexylcarbodiimide
- HONSu:
-
N-hydroxysuccinimide
- HOBt:
-
1-hy-droxybenzotriazole
- DMF:
-
dimethylformamide
- NMP:
-
N-methylpyr-rolidone
- MEI:
-
2-morpholinoethylisocyanide
- CCK:
-
cholecysto-kinin-pancreozymin
- HG:
-
human gastrin, whereby the additional number indicates the chain-length of the gastrin peptide
- tlc:
-
thin-layer chromatography
- hplc:
-
high performance liquid chromatography
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© 1986 Springer-Verlag Berlin Heidelberg
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Moroder, L., Wünsch, E. (1986). Gastrin and Cholecystokinin. In: Rahman, Au. (eds) Natural Product Chemistry. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-71425-2_14
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DOI: https://doi.org/10.1007/978-3-642-71425-2_14
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