Dictionary » T » Tyrosine



(Science: amino acid) One of the twenty amino acids directly coded in proteins. Nonessential in humans since can be synthesised from phenylalanine. An amino acid found in most proteins; a precursor of several hormones.One of 20 amino acids commonly found in proteins.

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Cell signalling inhibitors

... list for me some cell signalling inhibitors for C. elegans (or generic) and tell me the enzyme or receptor that is inhibited? (Preferably for tyrosine kinase, G-protein, JAK/STAT and Phosphatidylinositol 3-kinase) Thanks :D

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by billyfisher100
Wed Jan 08, 2014 7:35 pm
Forum: Cell Biology
Topic: Cell signalling inhibitors
Replies: 1
Views: 573


... is a digestive enzyme that cleaves proteins at specific points around the carboxy terminal ends of a large hydrophobic amino acid (like tyrosine, tryptophan, and phenylalanine). Chymotrypsin molecules can also cleave other chymotrypsin molecules but it usually doesn't happen because ...

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by supersapien
Mon Dec 02, 2013 9:29 am
Forum: General Discussion
Topic: Chymotrypsin
Replies: 1
Views: 715

Fail to see under physiological stimulation

Hi all, I am working on a protein that had been proved to be phosphorylated on its Tyrosine in the presence of constitutively active Src mutant. However, I had been trying for an year to see if I could reproduce the result using PDGF to turn on endogenous Src activity ...

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by kingsupercat
Wed Aug 21, 2013 2:48 am
Forum: Cell Biology
Topic: Fail to see under physiological stimulation
Replies: 6
Views: 992

Human Pathology 'Multiple-Choice Questions'

... above normal hematocrit 4. Which of the following enzymes is highly expressed in the adrenal medulla but not in the adrenal cortex? a. P450scc b. tyrosine hydroxylase c. aromatase d. 5-reductase e. 21-hydroxylase 5. Three weeks after a severe hemorrhage that caused a blood clot that totally ...

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by ScrimmSphere
Mon Feb 04, 2013 11:03 am
Forum: Human Biology
Topic: Human Pathology 'Multiple-Choice Questions'
Replies: 1
Views: 3369

Re: Is protein degrade by UV ?

It will depend on the wavelength of the UV light and its intensity. Aromatic amino acids, such as tyrosine, can absorb shorter-wavelength UV and become reactive. I found a lot of relevant information by searching the keyword group "UV tyrosine reactivity photochemistry" ...

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by jonmoulton
Fri Aug 31, 2012 4:04 pm
Forum: Cell Biology
Topic: Is protein degrade by UV ?
Replies: 3
Views: 3358
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