Dictionary » P » Phenyl



(Science: chemistry) A hydrocarbon radical (C6H5) regarded as the essential residue of benzene, and the basis of an immense number of aromatic derivatives.

(Science: chemistry) Phenyl hydrate, a nitrogenous base (C6H5.N2H3) produced artificially as a colourless oil which unites with acids, ketones, etc, to form well-crystallized compounds.

Origin: Gr. To bring to light _ -yl: cf. F. Phenyle. So called because it is a by-product of illuminating gas.

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Enquiry about APMA

Hello all, In one of my gel zymography experiment, I add amino phenyl mercuric acetate(APMA) to the digestion buffer. And I wonder how it works with the gelatinases.But after searching on the Internet. I only found the simple discrition that it activates ...

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by Crystalbin
Mon Apr 20, 2009 1:52 pm
Forum: General Discussion
Topic: Enquiry about APMA
Replies: 0
Views: 1129

Molecular weight of protein

This is my assignment. A pure protein was subjected to N-terminal analysis using c14-phenyl isothiocyanate,specific activity 120ci/mole.Reaction of the reagent with 2.3microgram of protein produced 12,300 cpm PTH-met and 8200 cpm PTH-val with a 90% counting efficiency.Calculate ...

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by khushi
Fri Oct 24, 2008 3:04 pm
Forum: Molecular Biology
Topic: Molecular weight of protein
Replies: 1
Views: 2104

Re: IBO 2003 questions- please help me out

... reaction orthonitrophenol is toxic for a cell. Isopropyl-β-D-thiogalactoside (IPTG ) - is an inductor but not a substrate for β-galactosidase. Phenyl-β-D-galactoside (PG) - is a substrate for β-galactosidase but not an inducer. The products of its hydrolysis are nontoxic for a cell. Which cells ...

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by tittu
Mon May 12, 2008 2:41 pm
Forum: Cell Biology
Topic: IBO 2003 questions- please help me out
Replies: 9
Views: 11209


... enzyme responsible is succinate dehydrogenase (oxidizing NADH). Everywhere says that it is a salt. When you look at the structure, there are three phenyl groups hiding the positive charge. Can that be enough to diffuse through the membrane? I highly doubt there is a specific transporter for it. ...

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by HoistDaColors
Sun Mar 30, 2008 2:33 am
Forum: Cell Biology
Topic: Tetrazolium
Replies: 0
Views: 1179

Biology Hangman Game

Yep you can have both! Phenyl-e-onu-ia

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by Draco
Fri Nov 09, 2007 8:58 am
Forum: General Discussion
Topic: Biology Hangman Game
Replies: 582
Views: 207011
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