Structure-activity studies were performed for adipokinetic hormone (AKH) in Manduca sexta. Seven naturally occurring and four synthetic peptides of the red pigment concentrating hormone (RPCH)/AKH family were tested in larvae of M. sexta for activation of glycogen phosphorylase in fat body. pGlu at
Causality in structure—activity studies
✍ Scribed by Gilles Klopman; Alexander N. Kalos
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 906 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0192-8651
No coin nor oath required. For personal study only.
✦ Synopsis
The problem of chance correlations in studies of structure-activity relationships using multivariate linear regression techniques is addressed. Random correlations are simulated by scrambling real potency values in data bases consisting of molecules possessing various biological properties. The statistical parameters of these correlations are compared to those obtained using the actual potency/compound data pairs and it is noted that the most noticeable differences are in the magnitude of the F values for the overall regression. Cutoff points for this parameter are suggested, which, when implemented in the recently introduced CASE method that correlates biological activity with substructural descriptors, can serve to weed out effectively the majority of meaningless correlations.
📜 SIMILAR VOLUMES
We can justify the use of any model, method, or algorithm if we clearly state our goals, understand the basis of our procedures, and fully appreciate the true nature and limitations of the results. As we have illustrated here, the creation of new wisdom may appear to be a consequence of our labors.