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The line up of inhibitor series (hinge binders) for CaMKK2 currently being pursued include: furopyridine, azaindole (pyrrolopyridine), quinoline, triazolopyridazine, imidazopyrazine, pyrazolopyrimidine. Figure 1. Figure 1: CaMKK2 hinge binders As part of our structure and activity relationships (SAR), we continue to build diversity on the pyridine ring for the furopyridine series, and new compounds added to Read More …
Hi! I’m Opher Gileadi, I head a group at the Structural Genomics Consortium (SGC) in Oxford. For many years, we’ve been looking at proteins involved in human. We’ve looked at a wide variety of proteins: from DNA repair enzymes and transcription factors to enzymes involved in signalling. In most cases, we focus on early work: Read More …
Things have been really busy in the lab the last few weeks. I’ve done a couple of purifications of ACVR1 (ALK2), which I’ll post in Zenodo (getting loads of protein now), but probably won’t write up the details of every purification every single time anymore, as it’s the same process every time for this construct. Read More …
Now that I’ve got my biophysical screening assays developed (19F NMR, SPR), as well as my hit expansion campaign started for small molecule inhibitors against the USP5 Zf-UBD, I need to be able to test if these small molecule inhibitors will antagonize the catalytic activity of USP5. It has been speculated in literature that the Read More …
This week one of the things I’ve been working on is the final set of mutations in the GS domain of Alk2 to help us unpick the influence of phosphorylation on function. That, however, is a bit of a mouthful so let’s unpack it a bit. I said in my last blog post that we Read More …
The experimental set-up and results covered in this post can be found here: 10.5281/zenodo.1495129. Apologies for the long delay between this post and my last post, it really has been quite some time! As postdocs, we generally have several projects running simultaneously and we have to split our time between these projects. I am no Read More …
In my last posts, I have constructed a pair of split-SCN1A constructs (split- SCN1A-GFP(1-10) and SCN1A-GFP(11)). Here, I tested the functionality of these constructs by looking at whether these split- constructs reconstitute into a full-length SCN1A and generate a fluorescent signal when co-transfected in HEK293 cells, and if so, do the reconstituted SCN1A (with an Read More …
Molecular dynamic simulations are a powerful tool for modeling biomolecular systems such as ligand binding to proteins. In a previous post I was able to get co-crystal structures of ligands which bind to the USP5 zinc finger ubiquitin binding domain (Zf-UBD). In order to explore the structure activity relationship (SAR) of the chemical series, so Read More …
Hello again! My previous post discussed how I finally had a specific antibody to EZH1 in a cell line (HEK293). As a follow up, I wanted to determine if we could detect EZH1 expression in patient cells. I’m happy to report I was able to detect the EZH1 protein in patient cells (Figure 1). Experimental Read More …
So I reported here a couple of weeks ago that I’d obtained datasets for ACVR1 bound to M4K2117 and M4K2121, at 1.25 and 2 Å resolution, respectively, and I put up a link to the data. I’m now refining the data and got some pretty good structures so far. These are what the current stats look Read More …
