Methodology - 821P-Q4 - Hit Comparison (better than 821P-Q3 ?)

This is part of a sequence which uses less stringent queries that give more hits. Our interest is whether any of these hits are better than the 821p-q3 hits.

For anyone who wants a more technical answer 821p-q4 is a 3 centre pharmacophore search with a lower (better) cutoff than the corresponding 4 centre pharmacophore query.


Methodology
821P-Q4
RAS Proteins

RAS proteins give a chemical "message" that activate cell growth. Without this signaling factor, the cell doesn't "know" to grow. Inhibiting RAS in cancer cells means an end to their uncontrolled growth. This query is part of a series which explores the use of less stringent queries that give more hits. We hope to gain an insight into whether better hits are generally included.

Test jobs gave many more hits and took longer than average jobs.

A J Scheidig et al (1992) Philos. Trans. R. Soc. London Vol 340 p263