Hayamitsu Adachi and co-workers from BIKAKEN have reported in JNP on a novel VEGF receptor tyrosine kinase inhibitor from bacteria. The only problem I see with this compound – from a toxicologist’s perspective – is that this is a quinone, and thus a very reactive electrophile. If this kind of functional group is used as a drug, who knows what other things it will react with in the body – be it DNA, proteins, etc…

Archive for the ‘Enzymes’ Category
Vegfrecine
Posted by naturalproductman on February 22, 2013
Posted in Alkaloids, Enzymes, Protein Targets, Proteins | Leave a Comment »
Not just isolating small molecules anymore…
Posted by naturalproductman on January 17, 2013
Hideaki Oikawa and co-workers from Hokkaido University have reported in Organic Letters on the isolation of an enzyme that was known to produce some natural products. They expressed and purified the enzyme, incubated the enzyme in the presence of substrates: geranyl diphosphate (GPP) and isopentenyl diphosphate (IPP), and examined the products.

Posted in Chemical Biology, Enzymes, Methodology, Proteins, Sesterterpenes | Leave a Comment »
HIV-1 reverse transcriptase structure with catechol diether
Posted by naturalproductman on November 19, 2012
Karen Anderson and co-workers at Yale have reported in JACS on a crystal structures of HIV-1 reverse transcriptase with catechol diether drugs.

Posted in Aromatic, Diseases, Enzymes, HIV, Proteins | Leave a Comment »
New drugs?
Posted by naturalproductman on April 18, 2012
I just wanted to highlight a C and E News article on some new drug candidates disclosed by drug companies…CEN article
In a nut shell:
Lexicon Pharmaceuticals on a diabetes type 2 drug – SGLT2 transporter inhibitor (JMC paper)
Gilead on an anti-inflammatory drug – TLR7 agonist (PNAS paper)
GlaxoSmithKline on a PI3K inhibitor for cancer treatment (Nature Medicine paper)
Bristol-Myers Squibb on a drug for migraine treatment – CGRP antagonist (ACSML paper)
Posted in Cancer, Diseases, Enzymes, Protein Targets, Proteins, Receptors | Leave a Comment »
Manoalide vs. HCV
Posted by naturalproductman on March 30, 2012
Nobuyoshi Akimitsu and co-workers from the University of Tokyo have reported on the identification of manoalide A as an inhibitor for heptatitis C virus NS3 helicase.

Posted in Diseases, Enzymes, Hepatitis C, Protein Targets, Proteins, Terpenes | Leave a Comment »
Carbamoyltransferase TobZ
Posted by naturalproductman on March 2, 2012
Posted in Enzymes, Mechanistic, Proteins | 4 Comments »
Half chair transition state
Posted by naturalproductman on February 17, 2012
Andrew Bennet and co-workers from Simon Fraser University have reported in JACS on a transition state study of a sialidase enzyme.

Posted in Enzymes, Glucoside, Isotope effects, Mechanistic, Methodology, Proteins | Leave a Comment »
Sirtuin 5 inhibitors
Posted by naturalproductman on January 21, 2012
Posted in Enzymes, Histone deacetylase, Methodology, Protein Targets, Proteins, Sirtuin 5 | Leave a Comment »
TS analog complexed with protein and water
Posted by naturalproductman on January 17, 2012
Vern Schramm and co-workers at Albert Einstein College of Medicine have reported in JACS on the observation of a complex between a transition state analog and an enzyme, methylthioadenosine/S-adenosylhomocysteine nucleosidase through mass spectrometry.

Posted in Chemical Biology, Enzymes, Mass Spectrometry, Mechanistic, Proteins | Leave a Comment »
DNA repair enzymes
Posted by naturalproductman on January 11, 2012
Sheila David and co-workers at UC Davis have reported in JACS on the DNA repair activities of Fpg and hOGG1 glycosylases.

Posted in Chemical Biology, Enzymes, Nucleic acids, Proteins | Leave a Comment »

