Cyclins and cdks cell cycle regulation

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Cyclins and cdks cell cycle regulation

This lecture explains about the cyclins cdks and cell cycle regulation. So in this video I have explained the role of cell division cyclins and cdks and how cyclins and cdk performs important steps of cell cycle regulation. Cdks are also known as the cyclin dependent kinase proteins. Regulation of cell cycle is done using specific cyclin cdk complex. There are specific cyclin cdk complex for each and every step of cell cycle like s phase cyclin. […]

Trp Operon – Tryptophan operon regulation and attenuation

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This lecture explains about the regulation and attenuation of Tryptophan operon (Trp operon). The trp operon of E. coli controls the biosynthesis of tryptophan in the cell from the initial precursor chorismic acid. This Trp operon contains genes for the production of five proteins which are used to produce three enzymes. This video lecture will help you to understand the following- 1. The mechanism of Tryptophan operon also known as Trp operon. 2. Trp operon regulation 3. […]

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Regulation of hexokinase 4

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Hexokinase iv regulation mechanism. Download the study materials here- Mammalian hexokinase IV, also referred to as glucokinase, differs from other hexokinases in kinetics and functions. The location of the phosphorylation on a subcellular level occurs when glucokinase translocates between the cytoplasm and nucleus of liver cells. Glucokinase can only phosphorylate glucose if the concentration of this substrate is high enough; its Km for glucose is 100 times higher than that of hexokinases I, II, and III. Hexokinase […]

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Enzyme regulation

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This biochemistry lecture explains about the mechanism of enzyme regulation with different regulatory substances which is a part of allosteric regulation. Enzymes need to be properly regulated so that the physiological functions as well as biochemical pathways can be properly established in cell. There are different types of enzyme regulation and here we have discussed about the few. Here we will explain Allosteric enzyme regulation Feedback regulation Product inhibition of enzyme For more information, log on to- […]

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Gene regulation in prokaryotes

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This lecture explains about the Gene regulation in prokaryotes. Regulation of gene expression entails a broad range of mechanisms that are used by cells to develop or diminish the production of specific gene products (protein or RNA), and is informally termed gene legislation. Subtle applications of gene expression are greatly located in biology, for example to trigger developmental pathways, respond to environmental stimuli, or adapt to new food sources. Practically any step of gene expression may also […]

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