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Dictionary » P » Phe

Phe

Phe

symbol for phenylalanine or its radical. Short hand for [[phenylalanine.


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Re: beers law concentration calculation

no- Calculation of ε: Trp: 3 x 5600 = 16800 + Tyr: 6 x 1420= 8520 + Phe 1x197 = 25517 M-1 cm-1 0.57= 22517 c (1) c=.000022338 mol/ml c=( .000022338/2438)/ml = 9.1624 x 10 -6

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by protchem12
Mon Jan 16, 2012 3:33 pm
 
Forum: Molecular Biology
Topic: beers law concentration calculation
Replies: 8
Views: 5344

beers law concentration calculation

you have neglected the Phe in your calculation, didn't you?

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by JackBean
Mon Jan 16, 2012 8:13 am
 
Forum: Molecular Biology
Topic: beers law concentration calculation
Replies: 8
Views: 5344

beers law concentration calculation

So let me write out the entire question, I want to see if you guys get the same answer as me. When a pure peptide containing 3 Trp, 6 Tyr, and 1 Phe is placed in a UV/Vis spectrometer, the absorbance measured is 0.57. If there is 1mL of solution in a 1cm path-length cuvette, calculate the approximate ...

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by protchem12
Mon Jan 16, 2012 3:37 am
 
Forum: Molecular Biology
Topic: beers law concentration calculation
Replies: 8
Views: 5344

Re: Protein structure

the definitions seem fine to me. The primary structure is like Asp-Gly-Glu-His-Gly-Phe blah, blah the secondary structure is like: DGEHGF (the sequence from above in 1-letter code) HH..EE (where H means helix and E means the beta sheet, I think it's marked E) However, ...

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by JackBean
Thu Sep 29, 2011 8:51 am
 
Forum: Molecular Biology
Topic: Protein structure
Replies: 4
Views: 11483

medium choice confusion

... genetic markers and are sensitive to streptomycin or sodium azide as indicated. F- strain LAN100 F- thi -, trp -, his -, met -, arg -, thr -, phe -, pro-, str r, azi r These mutations confer the following phenotypes on the strains: Genotype Phenotype thi - Thi- cannot synthesise vitamin B1 ...

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by ashhh
Sun Aug 21, 2011 2:58 pm
 
Forum: Molecular Biology
Topic: medium choice confusion
Replies: 1
Views: 2923
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