Results 11 to 20 of about 390,280 (339)

Structure-based mechanism of cysteine-switch latency and of catalysis by pappalysin-family metallopeptidases

open access: yesIUCrJ, 2020
Tannerella forsythia is an oral dysbiotic periodontopathogen involved in severe human periodontal disease. As part of its virulence factor armamentarium, at the site of colonization it secretes mirolysin, a metallopeptidase of the unicellular pappalysin ...
Tibisay Guevara   +4 more
doaj   +1 more source

Proteolysis in Reproduction: Lessons From Gene-Modified Organism Studies

open access: yesFrontiers in Endocrinology, 2022
The physiological roles of proteolysis are not limited to degrading unnecessary proteins. Proteolysis plays pivotal roles in various biological processes through cleaving peptide bonds to activate and inactivate proteins including enzymes, transcription ...
Daiji Kiyozumi   +4 more
doaj   +1 more source

An engineered protein-based submicromolar competitive inhibitor of the Staphylococcus aureus virulence factor aureolysin

open access: yesComputational and Structural Biotechnology Journal, 2022
Aureolysin, a secreted metallopeptidase (MP) from the thermolysin family, functions as a major virulence factor in Staphylococcus aureus. No specific aureolysin inhibitors have yet been described, making this an important target for the development of ...
Soraia R. Mendes   +7 more
doaj   +1 more source

A semi-tryptic peptide centric metaproteomic mining approach and its potential utility in capturing signatures of gut microbial proteolysis

open access: yesMicrobiome, 2021
Background Proteolysis regulation allows gut microbes to respond rapidly to dynamic intestinal environments by fast degradation of misfolded proteins and activation of regulatory proteins.
Zhixiang Yan   +11 more
doaj   +1 more source

Specific Disruption of Ras2 CAAX Proteolysis Alters Its Localization and Function

open access: yesMicrobiology Spectrum, 2023
Many CAAX proteins, such as Ras GTPase, undergo a series of posttranslational modifications at their carboxyl terminus (i.e., cysteine prenylation, endoproteolysis of AAX, and carboxylmethylation).
Rajani Ravishankar   +6 more
doaj   +1 more source

Phosphorylation Meets Proteolysis [PDF]

open access: yesStructure, 2012
Phosphorylation is a reversible post-translational modification that regulates many proteins and enzymes, including proteases, as shown by two recent publications. Huang and colleagues and Velázquez-Delgado and Hardy (this issue of Structure) describe how phosphorylation activates the protease activity of the deubiquitinating enzyme DUBA and how it ...
Renatus, Martin, Farady, Christopher J.
openaire   +2 more sources

Ordered dephosphorylation initiated by the selective proteolysis of cyclin B drives mitotic exit

open access: yeseLife, 2020
APC/C-mediated proteolysis of cyclin B and securin promotes anaphase entry, inactivating CDK1 and permitting chromosome segregation, respectively. Reduction of CDK1 activity relieves inhibition of the CDK1-counteracting phosphatases PP1 and PP2A-B55 ...
James Holder   +2 more
doaj   +1 more source

Proteolysis-Driven Oncogenesis [PDF]

open access: yesCell Cycle, 2007
An elevated expression of matrix metalloproteinases (MMPs) has been correlated with the growth and metastasis of preexisting tumors. The latest data, however, suggest that MMPs, by promoting genomic instability, are directly involved in the early stages of cell transformation from normalcy to malignancy and in incipient cancer.
Vladislav S, Golubkov, Alex Y, Strongin
openaire   +2 more sources

Intracellular proteolysis

open access: yesTrends in Genetics, 1999
Our present understanding of intracellular protein degradation developed from an attempt to understand the metabolic stability of proteins in cells. With the unravelling of its complex biochemical machinery has come a realization that protein degradation plays an important role in the most crucial events in the cell cycle, in signal transduction and in
M, Staszczak, E, Zdunek
openaire   +4 more sources

Nanomechanical in situ monitoring of proteolysis of peptide by Cathepsin B. [PDF]

open access: yesPLoS ONE, 2009
Characterization and control of proteolysis of peptides by specific cellular protease is a priori requisite for effective drug discovery. Here, we report the nanomechanical, in situ monitoring of proteolysis of peptide chain attributed to protease ...
Taeyun Kwon   +9 more
doaj   +1 more source

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