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Val

Val

symbol for valine and its radicals. An abbreviation for valine, an amino acid.


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Finding the net charge of amino acid

please, i need help with this question. Estimate the net charge of a polypeptide chain at physiological pH 7.4 and at pH 5.0 Ala-Arg-Val-His-Asp-Gln

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by debbie4christ
Tue May 28, 2013 8:12 pm
 
Forum: Molecular Biology
Topic: Finding the net charge of amino acid
Replies: 19
Views: 52137

DNA and Protein Synthesis

... mutation will be silent, i.e. coding for the same amino acid and you will see no change in protein. Or the amino acid may be very similar (Ala and Val), so you will see change in protein sequence, but it's function won't be altered. Another possibility is that you get some totally different amino ...

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by JackBean
Tue Feb 28, 2012 8:22 am
 
Forum: Genetics
Topic: DNA and Protein Synthesis
Replies: 2
Views: 5379

cloning

| really don't think, that Gly <-> Val mutation would be OK. Gly is often in turns, because if its structure. Also, Pro is not charged.

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by JackBean
Thu May 05, 2011 12:40 pm
 
Forum: Molecular Biology
Topic: cloning
Replies: 10
Views: 5589

cloning

... (horrible you canĀ“t follow this way) or the mutatios are silent, they only change one neutral aminoacid and the change dont have any risk(gly x val), but if the change means the change of a neutral aminoacid by a charged one (glyx pro) it will affect to the protein conformation. Probably there ...

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by protold
Thu May 05, 2011 5:54 am
 
Forum: Molecular Biology
Topic: cloning
Replies: 10
Views: 5589

Drawing amino acids in certain PH's

for example if I was told to draw Val-Ser-Gly would I draw the three structures and connect them by peptide bonds? If so now the next step what would I do if I was told to draw it in PH = 5.7 and PH = 7.7? How would I show the differences?

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by ILoveISO
Tue Jan 25, 2011 7:39 am
 
Forum: Molecular Biology
Topic: Drawing amino acids in certain PH's
Replies: 3
Views: 3248
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