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-   -   Consider a peptide with the following amino acid sequence:? (http://www.molecularstation.com/forum/peptide-forum/86775-consider-peptide-following-amino-acid-sequence.html)

jess123 11-08-2012 07:45 AM

Consider a peptide with the following amino acid sequence:?
 
Consider a peptide with the following amino acid sequence: Ala-Val-Ala-Ser-Lys-Asn-Ala-Thr-Asp-Gln-Ser-Thr-Pro
Q2. How many positively charged and negatively charged side chain groups are present in this peptide at pH=7?
(a) None
(b) One positive and one negative
(c) One positive and two negative
(d) Two positive and one negative
(e) Two positive and two negative

and stay which Amino Acids are positive and negative

Kunal Pandya 11-08-2012 10:26 AM

Re: Consider a peptide with the following amino acid sequence:?
 
(b) One positive and one negative

Lys(Lysine) having positive charge group in side chain
Asp(Aspartic acid) having negative charge group in side chain

Regards


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