BIOC 2580 Study Guide - Midterm Guide: Peptide Bond, Lone Pair, Oligopeptide

• School: University of Guelph
• Department: Biochemistry
• Course: BIOC 2580
• Professor: Evonka Wijekoon

Document Summary

Protein size is expressed in kilodaltons (kda: 1 dalton (da) = 1 g/mol (mass of h atom) Peptide bonds condensation reaction being linked. C=o (this is the point of weakness of the amide) amino group. Condensation involves removal of h2o from the units. Is reversible if h20 is added back in. Proteins are made of amino acids linked by peptide bonds. Proteins have diverse functions including: catalyzing reactions (enzymes) Each amino acid has an amino group and a carboxylate group. Each amino acid has a different side chain r. 6 with: very non-polar side chains (therefore don"t react with ph changes) 5 with: moderately non-polar side chain (not effected by changes in ph) 4 with: polar but uncharged side chains (not effected by ph change) good h bond donors/acceptors. 3 with: positively charged side chain, very polar, effected by ph, can be positive or neutral.