58 research outputs found
Target 2035 - an update on private sector contributions
Target 2035, an international federation of biomedical scientists from the public and private sectors, is leveraging ‘open’ principles to develop a pharmacological tool for every human protein. These tools are important reagents for scientists studying human health and disease and will facilitate the development of new medicines. It is therefore not surprising that pharmaceutical companies are joining Target 2035, contributing both knowledge and reagents to study novel proteins. Here, we present a brief progress update on Target 2035 and highlight some of industry's contributions
Target 2035 - an update on private sector contributions
Target 2035, an international federation of biomedical scientists from the public and private sectors, is leveraging ‘open’ principles to develop a pharmacological tool for every human protein. These tools are important reagents for scientists studying human health and disease and will facilitate the development of new medicines. It is therefore not surprising that pharmaceutical companies are joining Target 2035, contributing both knowledge and reagents to study novel proteins. Here, we present a brief progress update on Target 2035 and highlight some of industry's contributions
CACHE (Critical Assessment of Computational Hit-finding Experiments): A public–private partnership benchmarking initiative to enable the development of computational methods for hit-finding
One aspirational goal of computational chemistry is to predict potent and drug-like binders for any protein, such that only those that bind are synthesized. In this Roadmap, we describe the launch of Critical Assessment of Computational Hit-finding Experiments (CACHE), a public benchmarking project to compare and improve small-molecule hit-finding algorithms through cycles of prediction and experimental testing. Participants will predict small-molecule binders for new and biologically relevant protein targets representing different prediction scenarios. Predicted compounds will be tested rigorously in an experimental hub, and all predicted binders as well as all experimental screening data, including the chemical structures of experimentally tested compounds, will be made publicly available and not subject to any intellectual property restrictions. The ability of a range of computational approaches to find novel binders will be evaluated, compared and openly published. CACHE will launch three new benchmarking exercises every year. The outcomes will be better prediction methods, new small-molecule binders for target proteins of importance for fundamental biology or drug discovery and a major technological step towards achieving the goal of Target 2035, a global initiative to identify pharmacological probes for all human proteins. [Figure not available: see fulltext.
A Self-Organizing Algorithm for Modeling Protein Loops
Protein loops, the flexible short segments connecting two stable secondary
structural units in proteins, play a critical role in protein structure and
function. Constructing chemically sensible conformations of protein loops that
seamlessly bridge the gap between the anchor points without introducing any
steric collisions remains an open challenge. A variety of algorithms have been
developed to tackle the loop closure problem, ranging from inverse kinematics to
knowledge-based approaches that utilize pre-existing fragments extracted from
known protein structures. However, many of these approaches focus on the
generation of conformations that mainly satisfy the fixed end point condition,
leaving the steric constraints to be resolved in subsequent post-processing
steps. In the present work, we describe a simple solution that simultaneously
satisfies not only the end point and steric conditions, but also chirality and
planarity constraints. Starting from random initial atomic coordinates, each
individual conformation is generated independently by using a simple alternating
scheme of pairwise distance adjustments of randomly chosen atoms, followed by
fast geometric matching of the conformationally rigid components of the
constituent amino acids. The method is conceptually simple, numerically stable
and computationally efficient. Very importantly, additional constraints, such as
those derived from NMR experiments, hydrogen bonds or salt bridges, can be
incorporated into the algorithm in a straightforward and inexpensive way, making
the method ideal for solving more complex multi-loop problems. The remarkable
performance and robustness of the algorithm are demonstrated on a set of protein
loops of length 4, 8, and 12 that have been used in previous studies
Author Correction: Identification of multiple risk loci and regulatory mechanisms influencing susceptibility to multiple myeloma
Correction to: Nature Communications; https://doi.org/10.1038/s41467-018-04989-w, published online 13 September 2018
Migraine polygenic risk score associates with efficacy of migraine-specific drugs
ObjectiveTo assess whether the polygenic risk score (PRS) for migraine is associated with acute and/or prophylactic migraine treatment response.MethodsWe interviewed 2,219 unrelated patients at the Danish Headache Center using a semistructured interview to diagnose migraine and assess acute and prophylactic drug response. All patients were genotyped. A PRS was calculated with the linkage disequilibrium pred algorithm using summary statistics from the most recent migraine genome-wide association study comprising similar to 375,000 cases and controls. The PRS was scaled to a unit corresponding to a twofold increase in migraine risk, using 929 unrelated Danish controls as reference. The association of the PRS with treatment response was assessed by logistic regression, and the predictive power of the model by area under the curve using a case-control design with treatment response as outcome.ResultsA twofold increase in migraine risk associates with positive response to migraine-specific acute treatment (odds ratio [OR] = 1.25 [95% confidence interval (CI) = 1.05-1.49]). The association between migraine risk and migraine-specific acute treatment was replicated in an independent cohort consisting of 5,616 triptan users with prescription history (OR = 3.20 [95% CI = 1.26-8.14]). No association was found for acute treatment with non-migraine-specific weak analgesics and prophylactic treatment response.ConclusionsThe migraine PRS can significantly identify subgroups of patients with a higher-than-average likelihood of a positive response to triptans, which provides a first step toward genetics-based precision medicine in migraine
Identification of multiple risk loci and regulatory mechanisms influencing susceptibility to multiple myeloma
Genome-wide association studies (GWAS) have transformed our understanding of susceptibility to multiple myeloma (MM), but much of the heritability remains unexplained. We report a new GWAS, a meta-analysis with previous GWAS and a replication series, totalling 9974 MM cases and 247,556 controls of European ancestry. Collectively, these data provide evidence for six new MM risk loci, bringing the total number to 23. Integration of information from gene expression, epigenetic profiling and in situ Hi-C data for the 23 risk loci implicate disruption of developmental transcriptional regulators as a basis of MM susceptibility, compatible with altered B-cell differentiation as a key mechanism. Dysregulation of autophagy/apoptosis and cell cycle signalling feature as recurrently perturbed pathways. Our findings provide further insight
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