Results 231 to 240 of about 406,447 (269)

Mechanisms of ATM Activation

Annual Review of Biochemistry, 2015
The ataxia-telangiectasia mutated (ATM) protein kinase is a master regulator of the DNA damage response, and it coordinates checkpoint activation, DNA repair, and metabolic changes in eukaryotic cells in response to DNA double-strand breaks and oxidative stress.
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MECHANISMS OF ZYMOGEN ACTIVATION

Annual Review of Biophysics and Bioengineering, 1977
It is now well recognized that proteolytic enzymes play key roles in the regulation of or control over the action of other proteins (1-3). Such enzymes can be found in all species from bacteria to man and in control of diverse systems, which include hormone production, bacteriophage assembly (4), development, fertilization (5), digestion, defense ...
R M, Stroud, A A, Kossiakoff, J L, Chambers   +2 more
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The mechanism of the activation of papain

Biochemical and Biophysical Research Communications, 1969
Abstract The predominant form of inactive papain prepared by the method of Kimmel and Smith (1) is shown to be a mixed disulfide formed between a sulfhydryl group on the enzyme and cysteine. Reduction or other nucleophilic cleavage of this bond frees the active thiol of papain and stoichiometric amounts of free cysteine or cysteine whose sulfur atom ...
I B, Klein, J F, Kirsch
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Mechanisms of caspase activation

Current Opinion in Cell Biology, 2003
The core effectors of apoptosis encompass proteolytic enzymes of the caspase family, which reside as latent precursors in most nucleated metazoan cells. A majority of studies on apoptosis are based on the assumption that caspase precursors are activated by cleavage, a common mechanism for most protease zymogen activations.
Kelly M, Boatright, Guy S, Salvesen
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Study on mechanism of mechanical activation

Materials Science and Engineering: A, 1997
A mixture of ilmenite and graphite with a mass ratio (1:1) was ball milled at room temperature and subsequently annealed under Ar flow. The enhanced carbothermic reactions were monitored by using thermogravimetric analysis and X-ray diffraction analysis.
Y. Chen, T. Hwang, M. Marsh, J.S. Williams   +3 more
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Destruction mechanism of casting graphite in mechanical activation

CIS Iron and Steel Review, 2018
Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
I. E. Illarionov, T. R. Gilmanshina, A. A. Kovaleva, O. N. Kovtun, N. A. Bratukhina   +4 more
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The mechanics of active muscle

Proceedings of the Royal Society of London. Series B - Biological Sciences, 1953
Abstract When a frog’s or toad’s sartorius is rapidly released during a maintained isometric contraction its tension drops immediately and is redeveloped later. The extent of release required to reduce the tension to zero is 3 to 4 % of the length of the muscle.
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Mechanisms of Plasminogen Activation by Mammalian Plasminogen Activators

Enzyme, 2017
Plasminogen activators convert the proenzyme plasminogen to the active serine protease plasmin by hydrolysis of the Arg^560-Val^561 peptide bond. Physiological plasminogen activation is however regulated by several additional molecular interactions resulting in fibrin-specific clot lysis.
H R, Lijnen, D, Collen
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Mechanism of Hydrogen Activation

2006
The information described in this report leads me to the representation of the reactions of hydrogen with the [NiFe]- and [Fe]-hydrogenases shown in Figure 3.5.
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Mechanisms of Gene Activation

Science, 1995
S. Buratowski discusses two papers in this issue of Science (Sauer et al ., pp. 1783 and 1825 ) that show that the basal transcription factor complex TFIID is a target of transcriptional activators.
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