Results 1 to 10 of about 443,532 (143)

Identification and validation of differentially expressed chromatin regulators for diagnosis of aortic dissection using integrated bioinformatics analysis and machine-learning algorithms

open access: yesFrontiers in Genetics, 2022
Background: Aortic dissection (AD) is a life-threatening disease. Chromatin regulators (CRs) are indispensable epigenetic regulators. We aimed to identify differentially expressed chromatin regulators (DECRs) for AD diagnosis.Methods: We downloaded the ...
Chunjiang Liu   +6 more
doaj   +1 more source

Adaptive Residue-wise Profile Fusion for Low Homologous Protein SecondaryStructure Prediction Using External Knowledge [PDF]

open access: yesarXiv, 2021
Protein secondary structure prediction (PSSP) is essential for protein function analysis. However, for low homologous proteins, the PSSP suffers from insufficient input features. In this paper, we explicitly import external self-supervised knowledge for low homologous PSSP under the guidance of residue-wise profile fusion.
arxiv  

Accurate De Novo Prediction of Protein Contact Map by Ultra-Deep Learning Model [PDF]

open access: yesPLoS Comput Biol 13(1): e1005324, 2017, 2016
Recently exciting progress has been made on protein contact prediction, but the predicted contacts for proteins without many sequence homologs is still of low quality and not very useful for de novo structure prediction. This paper presents a new deep learning method that predicts contacts by integrating both evolutionary coupling (EC) and sequence ...
arxiv   +1 more source

Structure Alignment [PDF]

open access: yesarXiv, 2023
While many good textbooks are available on Protein Structure, Molecular Simulations, Thermodynamics and Bioinformatics methods in general, there is no good introductory level book for the field of Structural Bioinformatics. This book aims to give an introduction into Structural Bioinformatics, which is where the previous topics meet to explore three ...
arxiv  

Fundamental constraints on the abundances of chemotaxis proteins [PDF]

open access: yesBiophys. J. 108(5): 1293-1305 (2015), 2015
Flagellated bacteria, such as Escherichia coli, perform directed motion in gradients of concentration of attractants and repellents in a process called chemotaxis. The E. coli chemotaxis signaling pathway is a model for signal transduction, but it has unique features.
arxiv   +1 more source

FoldExplorer: Fast and Accurate Protein Structure Search with Sequence-Enhanced Graph Embedding [PDF]

open access: yesarXiv, 2023
The advent of highly accurate protein structure prediction methods has fueled an exponential expansion of the protein structure database. Consequently, there is a rising demand for rapid and precise structural homolog search. Traditional alignment-based methods are dedicated to precise comparisons between pairs, exhibiting high accuracy. However, their
arxiv  

A generative angular model of protein structure evolution [PDF]

open access: yesMolecular Biology and Evolution, 34(8):2085-2100, 2017, 2016
Recently described stochastic models of protein evolution have demonstrated that the inclusion of structural information in addition to amino acid sequences leads to a more reliable estimation of evolutionary parameters. We present a generative, evolutionary model of protein structure and sequence that is valid on a local length scale.
arxiv   +1 more source

Same but not alike: Structure, flexibility and energetics of domains in multi-domain proteins are influenced by the presence of other domains [PDF]

open access: yesPLoS Computational Biology, Public Library of Science, 2018, 14 (2), pp.e1006008, 2018
The majority of the proteins encoded in the genomes of eukaryotes contain more than one domain. Reasons for high prevalence of multi-domain proteins in various organisms have been attributed to higher stability and functional and folding advantages over single-domain proteins.
arxiv   +1 more source

Remote Homology Detection in Proteins Using Graphical Models [PDF]

open access: yes, 2013
Given the amino acid sequence of a protein, researchers often infer its structure and function by finding homologous, or evolutionarily-related, proteins of known structure and function. Since structure is typically more conserved than sequence over long evolutionary distances, recognizing remote protein homologs from their sequence poses a challenge.
arxiv   +1 more source

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