L-Cysteine
Company: Sigma-Aldrich
Catalog#: C7352
Product evaluation:
Assessment of Modulation of Protein Stability Using Pulse-chase Method
Author:
Date:
2017-08-20
[Abstract]  Pulse-chase technique is a method widely used to assess protein or mRNA stability. The principle of pulse-chase relies on labeling proteins or mRNA produced during a short period of time called ‘pulse’ and then following the rate of disappearance of those labeled proteins over a period of time called ‘chase’. This technique thus allows quantitative analysis of modulation of protein or mRNA stability under different treatments or culturing conditions.

Endpoint or Kinetic Measurement of Hydrogen Sulfide Production Capacity in Tissue Extracts
Author:
Date:
2017-07-05
[Abstract]  Hydrogen sulfide (H2S) gas is produced in cells and tissues via various enzymatic processes. H2S is an important signaling molecule in numerous biological processes, and deficiencies in endogenous H2S production are linked to cardiovascular and other health complications. Quantitation of steady-state H2S levels is challenging due to volatility of the gas and the need for specialized equipment. However, the capacity of an organ or tissue extract to ...

Determination of the in vitro Sporulation Frequency of Clostridium difficile
Author:
Date:
2017-02-05
[Abstract]  The anaerobic, gastrointestinal pathogen, Clostridium difficile, persists within the environment and spreads from host-to-host via its infectious form, the spore. To effectively study spore formation, the physical differentiation of vegetative cells from spores is required to determine the proportion of spores within a population of C. difficile. This protocol describes a method to accurately enumerate both viable vegetative cells and spores separately and subsequently ...

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