Differentiate which is fructose or glucose:

Left: Fructose
Right: Glucose
(Maybe it's time to get some energy?
Give the name, 3-letter code, 1-letter code for the below amino acid.

Tyrosine, Tyr, Y! (YAY?)
Which group of biomolecules does Prof. Ray like more?
(Protein vs. Lipids)
PROTEIN! (He is a peptide chemist.)

Differentiate which is (L)-fructose or (D)-fructose.
Left: D-fructose
Right: L-fructose
(Will you remember this after Orgo?)

Give 3 examples of non-charged, apliphatic amino acids.
Alanine, Valine, Isoleucine, Leucine, Phenylalanine etc. (Ray's favorite:)

Roughly how many protein-encoding genes do we have?
~ 20,000! (We're not that different from C. Elegans:)

Provide the reagents for the following transformations:

Only works on anomeric -OH!

Tell if the below amino acids are in (L) or (D) form.

(L), (L)! LOLLLLLL
Rank the # of unique structures of DNA, mRNA, & Protein.
Protein >> mRNA > DNA (We have so many Post-translational Modifications!)
Predict the major product of following transformation.

Acetonide is a really great cis-diol protecting group!

Draw out the peptide structure of "HAT" (from N-terminus to C-terminus)
W-HAT?

What was the name of the oncogene being discovered in 1983?
KRAS! (Accounts for ~20% of the cancer)
Rats: Does it have something to do with me?

What is the name of the reaction that extends 1 carbon on the sugar chain? What is the name of the reaction that shorten 1 carbon on the sugar chain?
Extends 1 Carbon: Kiliani–Fischer Synthesis
Shorten 1 Carbon: Wohl Degradation
(Generally wonder how Fischer gets involved with so many science?)


What was the chemical condition to cleave the amide linkage in peptide? Briefly state the mechanism.
Heat! with either acidic or basic conditions
(Sometimes heat is the key...)

What was the position of mutation on KRAS leading to the overexpression of KRAS?
G12X! (G12S, G12D, G12A, G12V, G12R etc.)
Glycine: Why always me?
