Recent Experiments

Differential Expression of CD44 Variants in Normal and AD Brain

 Kun Qian, Ranjita Betarbet, Rachel Commander, Erik Johnson, Opher Gileadi, Haian Fu, and Allan Levey https://doi.org/10.5281/zenodo.4900586 Alzheimer’s disease (AD) is a progressive neurodegenerative disorder, characterized by two pathological hallmarks – extracellular amyloid plaques that are made up of amyloid-peptide and intracellular neurofibrillary tangles that are comprised of hyperphosphorylated tau. AD neuropathology, however, begins decades before Read More …

Fused tetrahydroquinolines (THQ): potential PAINS compounds in a recent HTS for moesin-CD44 pathway inhibitors

Joel K. Annor-Gyamfi, Felix Nwogbo, Kun Qian, Yuhong Du, Kenneth H. Pearce Jr, Opher Gileadi, Haian Fu, Stephen V. Frye and Alison D. Axtman https://doi.org/10.5281/zenodo.4685122 Alzheimer’s disease (AD) is the most common cause of dementia worldwide but very few therapeutic options exist despite multiple high-profile but failed clinical trials. And as the population of the Read More …

Distinguishing between catalytic and non-catalytic pockets in the ligandable human genome: InterPro analysis

As describe in my previous post, my goal is to discover non-catalytic druggable pockets in human enzymes. These pockets could potentially be exploited for the design of ProxPharm compounds (chimeric compounds that bring two proteins in close proximity to elicit an effect of one protein on the other1). An essential aspect for the design of Read More …

The Preparation of Allosteric SYK Inhibitor X1 and Investigation of a Covalent Inhibition Mechanism

Frances M. Potjewyd and Vittorio Katis http://doi.org/10.5281/zenodo.4670214 Spleen Tyrosine Kinase (SYK) has a reported role in AD pathology and was identified as a target for the TREAT-AD (Target Enablement to Accelerate Therapy Development for Alzheimer’s Disease) program.1–3 We are focusing drug discovery efforts on the inhibition of SYK and more specifically, inhibition of the interaction Read More …

Preparation of the Soluble Epoxide Inhibitor SWE101 and the DOCK1 inhibitor TBOPP

Preparation of the Soluble Epoxide Inhibitor SWE101 and the DOCK1 inhibitor TBOPP David A. Rogers and Kevin J. Frankowski https://doi.org/10.5281/zenodo.4637834 The National Institute on Aging has made a significant commitment to improving the treatment of Alzheimer’s disease through the funding of the TREAT-AD network (Target Enablement to Accelerate Therapy Development for AD, https://treatad.org/). One of Read More …

Druggability and Amino Acid Variability of the Catalytic Site of SARS-CoV-2 Nsp15 Across Coronaviruses and SARS-CoV-2 Samples – Post 26

Today’s post focuses on another protein encoded by many coronaviruses, the non-structural protein 15 (nsp15), an endoribonuclease. Nsp15 is a nidoviral RNA uridylate-specific endoribonuclease (NendoU) with C-terminal catalytic activity. This protein belongs to the EndoU family, and they all carry an RNA endonuclease activity to produce 2’-3’ cyclic phosphodiester and 5’-hydroxyl termini. (Kim et al. Read More …