27aromatic ringон--CH,an acidic amino acid30NH--contains sulfhydryl groupH,NNH33--reactions with ammonia3.ноproduced asparagineH;N-C-C-OH36CH2can form cystineSH839contains a single methyl4.groupС -с-N1142ноCH,electrostatic interactions4445will occur betweenstructure (2) andhydrophobic interactionswill occur betweenstructure (4) and47485. Н.N-C-HонCHhas a guanidino group

Amino acids are categorized into different groups based on their side chain such as polar,…

aromatic ring он ÇH, CH, an acidic amino acid NH contains sulfhydryl group H,N NH reactions with ammonia 3. но produced asparagine H;N-C-C-oOH CH can form cystine SH contains a single methyl 4. group С -с-N но CH, electrostatic interactions will occur between structure (2) and hydrophobic interactions will occur between structure (4) and 5. Н. N-C-C H он CH, H has a guanidino group

aromatic ring он ÇH, CH, an acidic amino acid NH contains sulfhydryl group H,N NH reactions with ammonia 3. но produced asparagine H;N-C-C-oOH CH can form cystine SH contains a single methyl 4. group С -с-N но CH, electrostatic interactions will occur between structure (2) and hydrophobic interactions will occur between structure (4) and 5. Н. N-C-C H он CH, H has a guanidino group

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Given a tripeptide Cys-His-Lys, Cys: Pk1 = 1.71; Pk2 = 10.78; PkR = 8.33 His: Pk1 = 1.82; Pk2 = 9.17; PkR = 6.0 Lys: Pk1 = 2.18; Pk2 = 8.95; PkR = 10.53 What is the dominant structure at pH 2.0? What is the first buffering region of the tripeptide?
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