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3 novembre 2012

Scientific Background of CBP Protein

CBP or CREB-binding protein is a nuclear transcriptional coactivator protein that binds specifically to the PKA-phosphorylated form of the CREB protein. Microinjection of an anti-CBP antiserum into fibroblasts leads to inhibition of transcription from...
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20 octobre 2012

Biological role of L-DOPA

L-tyrosine by the enzyme tyrosine hydroxylase (TH). It is also the precursor for the monoamine or catecholamine neurotransmitters dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline). Dopamine is formed by the decarboxylation of L-DOPA....
20 octobre 2012

Therapeutic use of L-DOPA

L-DOPA crosses the protective blood–brain barrier, whereas dopamine itself cannot. Thus, L-DOPA is used to increase dopamine concentrations in the treatment of Parkinson's disease and dopamine-responsive dystonia. This treatment was originally developed...
20 octobre 2012

L-DOPA

L-DOPA (L-3,4-dihydroxyphenylalanine) is a chemical that is made and used as part of the normal biology of some animals and plants. Some animals including humans make it via biosynthesis from the amino acid L-tyrosine. L-DOPA is the precursor to the neurotransmitters...
19 octobre 2012

Metal binding of Metallothionein

Metallothionein has been documented to bind a wide range of metals including cadmium, zinc, mercury, copper, arsenic, silver, etc. Metallation of MT was previously reported to occur cooperatively but recent reports have provided strong evidence that metal-binding...
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19 octobre 2012

Structure and classification of Metallothionein

Metallothioneins are present in a vast range of taxonomic groups, ranging from prokaryotes (such as the cyanobacteria Syneccococus spp....), protozoa (p. ex. the ciliate Tetrahymena genera...), plants (such as Pisum sativum, Triticum durum, Zea mays,...
19 octobre 2012

Metallothionein

Metallothionein (MT) is a family of cysteine-rich, low molecular weight (MW ranging from 500 to 14000 Da) proteins. They are localized to the membrane of the Golgi apparatus. MTs have the capacity to bind both physiological (such as zinc, copper, selenium)...
17 octobre 2012

Entrez Gene summary for CYP24A1

CYP24A1 encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins aremonooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids andother lipids. This mitochondrial...
17 octobre 2012

Function of CYP24A1

This mitochondrial protein initiates the degradation of 1,25-dihydroxyvitamin D3, the physiologically active form of vitamin D3, by hydroxylation of the side chain to form calcitroic acid.In regulating the level of vitamin D3, this enzyme plays a role...
17 octobre 2012

CYP24A1

De1,25-dihydroxyvitamin D3 24-hydroxylase, mitochondrial is an enzyme that in humans is encoded by the CYP24A1 gene.This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze...
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