Results 101 to 110 of about 11,665,453 (372)

Replication protein-A, RPA, plays a pivotal role in the maintenance of recombination checkpoint in yeast meiosis

open access: yesScientific Reports
DNA double-strand breaks (DSBs) activate DNA damage responses (DDRs) in both mitotic and meiotic cells. A single-stranded DNA (ssDNA) binding protein, Replication protein-A (RPA) binds to the ssDNA formed at DSBs to activate ATR/Mec1 kinase for the ...
Arivarasan Sampathkumar   +5 more
doaj   +1 more source

Aquaporin Protein-Protein Interactions [PDF]

open access: yesInternational Journal of Molecular Sciences, 2017
Aquaporins are tetrameric membrane-bound channels that facilitate transport of water and other small solutes across cell membranes. In eukaryotes, they are frequently regulated by gating or trafficking, allowing for the cell to control membrane permeability in a specific manner.
Jennifer Roche   +1 more
openaire   +3 more sources

Refining the Protein-Protein Interactome using Gene Expression Data [PDF]

open access: yesarXiv, 2010
Proteins interact with other proteins within biological pathways, forming connected subgraphs in the protein-protein interactome (PPI). Proteins are often involved in multiple biological pathways which complicates interpretation of interactions between proteins.
arxiv  

Structural and mechanistic basis for the regulation of the chloroplast signal recognition particle by (p)ppGpp

open access: yesFEBS Letters, EarlyView.
LHCPs are transported to the thylakoid membrane via the (cp)SRP pathway. This process involves a transit complex of (cp)SRP43, (cp)SRP54 and LHCP, which interacts with (cp)FtsY and Alb3 at the membrane. GTP hydrolysis by (cp)SRP54 and (cp)FtsY triggers complex dissociation.
Victor Zegarra   +7 more
wiley   +1 more source

Protein token: a dynamic unit in protein interactions [PDF]

open access: yesarXiv, 2018
In this study, we introduced a new unit, named "protein token", as a dynamic protein structural unit for protein-protein interactions. Unlike the conventional structural units, protein token is not based on the sequential or spatial arrangement of residues, but comprises remote residues involved in cooperative conformational changes during protein ...
arxiv  

Taurine promotes glucagon‐like peptide‐1 secretion in enteroendocrine L cells

open access: yesFEBS Letters, EarlyView.
Taurine, a sulfur‐containing amino acid, is likely taken up by enteroendocrine L cells via the taurine transporter. This process increases the levels of cytosolic ATP. The increase in intracellular Ca2+ concentrations and glucagon‐like peptide‐1 secretion through membrane depolarization is caused by the closure of ATP‐sensitive potassium channels ...
Yuri Osuga   +6 more
wiley   +1 more source

Light chain mutations contribute to defining the fibril morphology in systemic AL amyloidosis

open access: yesNature Communications
Systemic AL amyloidosis is one of the most frequently diagnosed forms of systemic amyloidosis. It arises from mutational changes in immunoglobulin light chains.
Sara Karimi-Farsijani   +11 more
doaj   +1 more source

FHF1 is a bona fide fibroblast growth factor that activates cellular signaling in FGFR-dependent manner

open access: yesCell Communication and Signaling, 2020
Fibroblast growth factors (FGFs) via their receptors (FGFRs) transduce signals from the extracellular space to the cell interior, modulating pivotal cellular processes such as cell proliferation, motility, metabolism and death. FGF superfamily includes a
Martyna Sochacka   +7 more
doaj   +1 more source

Anchor extension: a structure-guided approach to design cyclic peptides targeting enzyme active sites

open access: yesNature Communications, 2021
Cyclic peptides are of particular interest due to their pharmacological properties, but their design for binding to a target protein is challenging. Here, the authors present a computational “anchor extension” methodology for de novo design of cyclic ...
Parisa Hosseinzadeh   +17 more
doaj   +1 more source

Antagonists of protein–protein interactions [PDF]

open access: yesChemistry & Biology, 2000
Protein-protein interactions are often attractive, but not straightforward, targets for disease therapy. Two strategies for identifying inhibitors of these interactions, peptide phage display and high-throughput screening, have recently shown new promise.
openaire   +3 more sources

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