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Whi5 is a transcriptional regulator in the budding yeast, notably in the G1 phase. [1] It plays an important role in cell size control in G1 phase, similarly with Retinoblastoma (Rb) protein in human, although the two have no similarity in sequence [2] Whi5 is an inhibitor of SBF (SCB binding factor), which is involved in the transcription of G1-specific genes.
The family consists of various 1,3-beta-glucan synthase components including Gls1, Gls2, and Gls3 from yeast. 1,3-Beta-glucan synthase (EC 2.4.1.34.) also known as callose synthase catalyses the formation of a beta-1,3-glucan polymer that is a major component of the fungal cell wall. [4] The reaction catalysed is:
A protein synthesis inhibitor is a compound that stops or slows the growth or proliferation of cells by disrupting the processes that lead directly to the generation of new proteins. [ 1 ] A ribosome is a biological machine that utilizes protein dynamics on nanoscales to translate RNA into proteins
Glutamate racemase (MurI) serves two distinct metabolic functions: primarily, it is a critical enzyme in cell wall biosynthesis, [2] but also plays a role in gyrase inhibition. [3] The ability of glutamate racemase and other proteins to serve two distinct functions is known as " moonlighting ".
Biosynthesis, i.e., chemical synthesis occurring in biological contexts, is a term most often referring to multi-step, enzyme-catalyzed processes where chemical substances absorbed as nutrients (or previously converted through biosynthesis) serve as enzyme substrates, with conversion by the living organism either into simpler or more complex ...
Bacterial cell wall synthesis is essential to growth, cell division (thus reproduction) and maintaining the cellular structure in bacteria. [2] Inhibition of PBPs leads to defects in cell wall structure and irregularities in cell shape, for example filamentation , pseudomulticellular forms, lesions leading to spheroplast formation, and eventual ...
Substrate inhibition in bioreactors occurs when the concentration of substrate (such as glucose, salts, or phenols [1]) exceeds the optimal parameters and reduces the growth rate of the cells within the bioreactor. This is often confused with substrate limitation, which describes environments in which cell growth is limited due to of low substrate.
Echinocandin B. Echinocandins are a class of antifungal drugs [1] that inhibit the synthesis of β-glucan in the fungal cell wall via noncompetitive inhibition of the enzyme 1,3-β glucan synthase.