{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

3-233_Chapter4_amino_acids

3-233_Chapter4_amino_acids - Chem 233 Fundamentals of...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 233 Fundamentals of Biochemistry Amino Acids
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Amino Acids general formula structures and properties titration curves optical activity non-standard amino acids
Background image of page 2
The 20 protein amino acids are called α -amino acids O neutral form of an α -amino acid zwitterionic form of an α -amino acid Why α -amino acids ? The carbon next to a carbonyl group is called the alpha ( α )-carbon, then the β -carbon, γ -carbon, etc. α β γ
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Amino acid forms Amino acids under go an internal acid-base reaction and exist as the zwitterionic form at physiological pH Amino acids can act as an acid or a base:
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 6
Alphabetical list of the 20 amino acids You are expected to know the structures of the 20 protein amino acids The single letter amino acid code is not necessary but is VERY USEFUL!
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Classifying the Amino Acids Polarity: non-polar vs. polar NON-POLAR: Small side chain: Gly, Ala Branch-chain: Val, Ile, Leu Aromatic side chains: Phe, Trp (Tyr) POLAR: Uncharged polar side chains: Ser, Thr, Tyr Gln, Asn
Background image of page 8
Charged polar side chains:
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}