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The activator is the main factor determining the phosphor emission wavelength. The nature of the host crystal can however to some degree influence the wavelength as well. More activators can be used simultaneously. Common examples of activators are:
NOBS was developed by Procter & Gamble in 1983 [2] and was first used in American laundry detergents in 1988. [3] NOBS is the main bleach activator used in the U.S.A. and Japan. [ 4 ] Compared to TAED , which is the predominant bleach activator used in Europe, NOBS is efficient at much lower temperatures.
[6] Drugs in the oxime class (e.g., Pralidoxime) reactivate AChE by removing the OP. Oximes have a higher affinity for phosphorylation than the serine residue in the AChE active site, causing the OP to detach from the AChE enzyme, freeing its active site and restoring function.
Hexokinase-I (HK-I) is an enzyme activator because it draws glucose into the glycolysis pathway. Its function is to phosphorylate glucose releasing glucose-6-phosphate (G6P) as the product. HK-I not only signals the activation of glucose into glycolysis but also maintains a low glucose concentration to facilitate glucose diffusion into the cell.
[2] [3] [4] The activity of activators is controlled by the ability of the activator to bind to its regulatory site along the DNA. [2] [3] [4] The DNA-binding domain of the activator has an active form and an inactive form, which are controlled by the binding of molecules known as allosteric effectors to the allosteric site of the activator. [4]
In the N-terminal region at amino acid position 55-61 the cdh1 protein contains a C-Box motif, which is required for the association with the APC/c complex. Especially the residue R56 seems to be important for the binding to APC/c in vitro and Cdh1 function in vivo. [9] [10] Cdh1 contains multiple phosphorylation sites for the kinase cdc28 ...
Owing to the simple preparative accessibility, the uncritical behavior at temperatures below 80 °C and in particular because of the high yields and the low racemization of the peptides obtained, ethyl cyanohydroxyiminoacetate has now become widely used as an additive in peptide syntheses. [1] [5] [6]
The protein encoded by this gene (p35) is a neuron-specific activator of cyclin-dependent kinase 5 (CDK5); the activation of CDK5 is required for proper development of the central nervous system. The p35 form of this protein is proteolytically cleaved by calpain , generating a p25 form.