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Understanding Peptide Structure: A Comprehensive Review

Dive into peptide structure in this biochemistry review, exploring amino acids, pKa values, and charge variations at different pH levels.

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Understanding Peptide Structure: A Comprehensive Review

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  1. BIOCHEMISTRY REVIEWOverview of Biomolecules Chapter 3 Peptides

  2. Ala-Gly-Tyr-Gln-Ser-Phe-LysN-terminal C-terminal

  3. Are You Getting It?? ____________________________________________________ ____________________________________________________ a) How many amino acids are in this peptide? b) How many pKa values does this peptide have? (include serine) c) What is the charge at pH = 1? d) What is the charge at pH = 14?

  4. Are You Getting It?? ____________________________________________________ ______________________Answer________________________ a) How many amino acids are in this peptide? 5 b) How many pKa values does this peptide have? (include serine) 4 c) What is the charge at pH = 1? +1 d) What is the charge at pH = 14? -3

  5. Are You Getting It?? ____________________________________________________ ____________________________________________________ Ala-Gly-Lys-Gln-Arg-Phe-Asp a) How many peptide bonds are in this peptide? b) How many pKa values does this peptide have? c) What is the charge at pH = 1? d) What is the charge at pH = 14?

  6. Are You Getting It?? ____________________________________________________ ______________________Answer________________________ Ala-Gly-Lys-Gln-Arg-Phe-Asp a) How many peptide bonds are in this peptide? 6 b) How many pKa values does this peptide have? 5 c) What is the charge at pH = 1? + 3 d) What is the charge at pH = 14? -2

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