Results 341 to 350 of about 1,607,552 (384)
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Proteases, proteases and proteases for presentation
Nature Immunology, 2003Peptide epitope generation for MHC class I presentation is normally dependent upon proteasome activity. Yet this pathway fails to generate critical HIV epitopes. Instead, the protease TPPII is required for this activity.
Eric Reits +2 more
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Regulation of cell death protease caspase-9 by phosphorylation.
Science, 1998Caspases are intracellular proteases that function as initiators and effectors of apoptosis. The kinase Akt and p21-Ras, an Akt activator, induced phosphorylation of pro-caspase-9 (pro-Casp9) in cells.
M. Cardone +7 more
semanticscholar +1 more source
Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics, 2012
Autophagy is a process involved in the proteolytic degradation of cellular macromolecules in lysosomes, which requires the activity of proteases, enzymes that hydrolyse peptide bonds and play a critical role in the initiation and execution of autophagy. Importantly, proteases also inhibit autophagy in certain cases.
Boris Zhivotovsky, Vitaliy O. Kaminskyy
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Autophagy is a process involved in the proteolytic degradation of cellular macromolecules in lysosomes, which requires the activity of proteases, enzymes that hydrolyse peptide bonds and play a critical role in the initiation and execution of autophagy. Importantly, proteases also inhibit autophagy in certain cases.
Boris Zhivotovsky, Vitaliy O. Kaminskyy
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Proteases, protease inhibitors and radiation carcinogenesis
International Journal of Radiation Biology, 2021The purpose of the studies described in this mini review article was to identify nontoxic compounds that could prevent or suppress the radiation induced malignant transformation of cells and be useful as human cancer preventive agents.(1) Many different types of potential anticarcinogenic substances were evaluated initially for their abilities to ...
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Engineering of proteases and protease inhibition
Current Opinion in Biotechnology, 1991Proteases are unquestionably the single most studied class of enzymes and yet many questions still remain about their mechanisms and roles. Protein engineering offers the opportunity to provide some of the answers. In this review, recent advances towards the understanding of stability, mechanism, specificity and regulation of proteases and their ...
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Seed proteases and protease inhibitors
Economic Botany, 1970This review, which unavoidably has to be of a highly selective nature, covers the literature through December, 1967, and is concerned with two classes of proteins which are involved in the metabolism of seeds: proteases and protease inhibitors. During germination, proteases degrade protein reserves of seeds with an attendant release of peptides, free ...
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Serine protease mechanism and specificity.
Chemical Reviews, 2002Almost one-third of all proteases can be classified as serine proteases, named for the nucleophilic Ser residue at the active site. This mechanistic class was originally distinguished by the presence of the AspHis-Ser “charge relay” system or “catalytic ...
L. Hedstrom
semanticscholar +1 more source
Periplasmic Proteases and Protease Inhibitors
2014In general, proteases are involved in diverse functions; the most notable include digestive, protective, and regulatory processes. Digestive proteases are involved in protein degradation for nutritional purposes. About 35% of all entries in the MEROPS database are classified as serine proteases.
Kucz Nicolette +2 more
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Proteases and Protease Inhibitors in Tumor Progression
1997Our understanding of the role of matrix degrading proteases in cancer has dramatically expanded over the last two decades. From correlative observations linking proteases to cancer progression, we have accumulated evidence supporting a causal role for proteases in various steps of tumor progression and have become increasingly aware of the complex ...
Ralph A. Reisfeld +5 more
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Proteases and protease inhibitors in cancer
Acta Histochemica, 1998The second conference on 'Proteases and protease inhibitors in cancer' was organized by the American Association for Cancer Research (AACR) and Acta Pathologica Microbiologica et Immunologica Scandinavica (APMIS). To understand the role of proteinases and to develop relevant synthetic inhibitors to stop or slow the progression of cancer, an integrated ...
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