Evaluating protein-protein interactions in AF3 predicted complexes: a PD-1 case study
ScienceBlog Elisa Martino ScienceBlog Elisa Martino

Evaluating protein-protein interactions in AF3 predicted complexes: a PD-1 case study

Can protein-protein complex models generated by AF3 effectively serve as starting points for predicting protein-protein interactions and identifying binding hotspots, thus facilitating drug design?

Using our software, 3decision®, we evaluated the accuracy of the AF3 models using Programmed cell death protein 1 (PD-1) complexes as a case study.

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Structure-based compound design for dihydroorotate dehydrogenase - how to leverage protein-ligand interaction patterns for scaffold hopping idea generation
ScienceBlog Marija Martini ScienceBlog Marija Martini

Structure-based compound design for dihydroorotate dehydrogenase - how to leverage protein-ligand interaction patterns for scaffold hopping idea generation

Through this usecase you will get to know how to find novel chemical entities in early drug discovery using 3decision protein-ligand interaction-based search. As an example, we performed a scaffold optimization of an active compound co-crystallized with the malaria target DHODH.

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Structure-based lead optimization of a PROTAC small-molecule in the BRD4-CRBN complex
ScienceBlog Marija Martini ScienceBlog Marija Martini

Structure-based lead optimization of a PROTAC small-molecule in the BRD4-CRBN complex

The purpose of this article is to illustrate how to apply some of 3decision’s features in scientific research. For this use case, the 3decision Subpocket Similarity Search is used to suggest modifications for the optimization of a small- molecule PROTAC. The Protein-Ligand interaction coloring by statistics is then used to evaluate docking poses of new compounds. The bromodomain-containing protein 4 – cereblon complex (BRD4-CBRN) and its degrader dBET23 are used as an example.

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What are the challenges for medicinal chemists when working with 3D structures? - Interview
ScienceBlog Marija Martini ScienceBlog Marija Martini

What are the challenges for medicinal chemists when working with 3D structures? - Interview

The continuous increase in the available 3D structural data brings along changes in the medicinal chemistry field. Dr. George Sheppard, Senior Principal Research Scientist at AbbVie, shared his thoughts on the benefits for medicinal chemists using 3D information, current challenges and limitations, and proposed potential ways for improvement, in the following interview.

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Getting ready for AlphaFold with 3decision®
ScienceBlog Marija Martini ScienceBlog Marija Martini

Getting ready for AlphaFold with 3decision®

Google-owned company DeepMind has achieved to predict 3D protein shapes with high accuracy and speed using the AI program AlphaFold. Although still in the early phase, this method can have a significant impact on drug discovery, accelerating the development of new drugs. In this article, we are discussing the importance of getting ready for the new source of structural data and how to gain the most of structural knowledge.

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Should medicinal chemists use 3D molecular modeling tools?
ScienceBlog Valentin Beuchillot ScienceBlog Valentin Beuchillot

Should medicinal chemists use 3D molecular modeling tools?

We sat down with Dr. Alexis Denis, Ph.D. Medicinal Chemistry Director at Galapagos to collect his thoughts on the question: Should medicinal chemists use 3D molecular modeling tools?
We were able to understand how he manages the collaboration in SBDD teams, but also to understand his vision of how these positions/roles could evolve in the future.

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Discngine & UserStudio: Uplifting User Experience in life science research applications
Products, ScienceBlog, TechBlog Valentin Beuchillot Products, ScienceBlog, TechBlog Valentin Beuchillot

Discngine & UserStudio: Uplifting User Experience in life science research applications

Recently, our collaborative platform, 3decision, just saw itself complemented with two new features (subpocket search & interaction search) and a radically different User Experience (UX). This new UX, with an updated User Interface (UI), is the result of months of collaborative work between UserStudio and the 3decision team.
In order to tell the story of this project, we gathered people from both companies to answer a few questions.

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SARS-Cov-2 - part 3 - nsp1: A hopefully more detailed analysis of the cellular saboteur
ScienceBlog Peter Schmidtke ScienceBlog Peter Schmidtke

SARS-Cov-2 - part 3 - nsp1: A hopefully more detailed analysis of the cellular saboteur

My German cartesian mind (here we go with stereotypes) asks me to start with the first protein expressed by the viral genome of SARS-Cov-2, nsp1. That is, by far, not the low hanging fruit. But it is interesting to learn more about the roles of the different constituents of the virus. Nsp1 actually has also a few very interesting roles to facilitate the viral lifecycle in its host environment.

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SARS-CoV-2 - part 2 - From the viral genome to protein structures
ScienceBlog Peter Schmidtke ScienceBlog Peter Schmidtke

SARS-CoV-2 - part 2 - From the viral genome to protein structures

The bread and butter of every structure based drug design or drug ID effort is the need for 3D structural information of a target of interest related to the phenotypic outcome we want to alter. In the case of SARS-Cov-2 several experimental structures are already available in the RCSB PDB. Other a large scale fragment screens from the Diamond Light Source are slowly becoming available (available in the 3decision protease project for now) on public resources likes the RCSB PDB. Popular homology modelling services also already started to provide several high quality models for some of the yet not resolved structures of the viral proteome.

But let’s first have a look what the viral genome actually contains and what are currently pursued efforts.

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