Results 41 to 50 of about 315,126 (303)

Does a Simple Lattice Protein Exhibit Self-Organized Criticality? [PDF]

open access: yes, 2015
There are many unanswered questions when it comes to protein folding. These questions are interesting because the tertiary structure of proteins determines its functionality in living organisms.
Bajracharya, Arun   +2 more
core   +1 more source

The Phyre2 web portal for protein modeling, prediction and analysis [PDF]

open access: yes, 2015
Phyre2 is a suite of tools available on the web to predict and analyze protein structure, function and mutations. The focus of Phyre2 is to provide biologists with a simple and intuitive interface to state-of-the-art protein bioinformatics tools.
A González-Pérez   +38 more
core   +2 more sources

An insight into structural plasticity and conformational transitions of transcriptional co-activator Sus1.

open access: yesPLoS ONE, 2020
RNA biogenesis and mRNA transport are an intricate process for every eukaryotic cell. SAGA, a transcriptional coactivator and TREX-2 are the two major complexes participate in this process.
Akhilendra Pratap Bharati   +4 more
doaj   +1 more source

Multiple co-evolutionary networks are supported by the common tertiary scaffold of the LacI/GalR proteins. [PDF]

open access: yesPLoS ONE, 2013
Protein families might evolve paralogous functions on their common tertiary scaffold in two ways. First, the locations of functionally-important sites might be "hard-wired" into the structure, with novel functions evolved by altering the amino acid (e.g.
Daniel J Parente, Liskin Swint-Kruse
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

A Spatial Simulation Approach to Account for Protein Structure When Identifying Non-Random Somatic Mutations [PDF]

open access: yes, 2013
Background: Current research suggests that a small set of "driver" mutations are responsible for tumorigenesis while a larger body of "passenger" mutations occurs in the tumor but does not progress the disease.
Bjornson, Robert   +6 more
core   +2 more sources

CopulaNet: Learning residue co-evolution directly from multiple sequence alignment for protein structure prediction

open access: yesNature Communications, 2021
Protein structure prediction is a challenge. A new deep learning framework, CopulaNet, is a major step forward toward end-to-end prediction of inter-residue distances and protein tertiary structures with improved accuracy and efficiency.
Fusong Ju   +6 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Stabilisation of Na,K-ATPase structure by the cardiotonic steroid ouabain [PDF]

open access: yes, 2013
Cardiotonic steroids such as ouabain bind with high affinity to the membrane-bound cation-transporting P-type Na,K-ATPase, leading to complete inhibition of the enzyme.
Abdul-Gader   +30 more
core   +1 more source

Fast protein structure comparison through effective representation learning with contrastive graph neural networks.

open access: yesPLoS Computational Biology, 2022
Protein structure alignment algorithms are often time-consuming, resulting in challenges for large-scale protein structure similarity-based retrieval.
Chunqiu Xia   +4 more
doaj   +1 more source

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