Fischer convention for assigning the enantiomers of glyceraldehyde.

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Presentation transcript:

Fischer convention for assigning the enantiomers of glyceraldehyde

Configuration of L-glyceraldehyde and L-  -amino acids

The structural formula of L-glyceraldehyde

Greek lettering scheme used to identify the atoms in the glutamyl and lysyl sidechains

Structure of cystine: redox chemistry

Titration curve of glycine

Amino acid analysis via HPLC

Condensation of two  -amino acids to form a dipeptide

Structure of the tetrapeptide, Ala-Tyr-Asp-Gly

Titration curves of ribonuclease A at 25 °C

Views of ethanol: prochirality

Uncommon amino acids that are components of certain proteins

Biologically produced derivatives of “standard” amino acids and amino acids that are not components of proteins

END

Enantiomers of fluorochlorobromomethane

General structural formula for  -amino acids

Zwitterionic form of the  -amino acids that occur at physiological pH values

The structural formula of L-alanine

“CORN crib” mnemonic for the “handedness” of L-amino acids

Fischer projections of L-threonine stereoisomers

Newman projections of the stereoisomers of threonine and isoleucine derived from proteins

Schematic diagram of a polarimeter

Structure of phenylalanine: ball-and-stick representation

Structure of phenylalanine: space-filling representation

Views of acetaldehyde: re and si faces

The three stereoisomers of cystine