Biochemistry Unit 1

free amino acid carboxyl group

free amino acid carboxyl group

2

free amino acid amino group

9.5

backbone amino group in a peptide

8

backbone carboxyl group in a peptide

3

side chain of Aspartic acid

3.9

side chain of glutamic acid

4.3

side chain of histidine

6

side chain of cysteine

8.3

side chain of tyrosine

10.1

side chain of lysine

10.5

side chain of arginine

12.5

side chain of serine

13.0

side chain of threonine

13.0

ways to make lipids more fluid

branching or rings, shorter non-polar tails, unsaturation

Triacylglycerols, (triglycerides)

Fatty acid ester of glycerol

Waxes

Esters of long chain alcohol and long chain fatty acid

Terpenes

Derived from 5-carbon unit called isoprene

Steroids

Cholesterol, Steroid Hormones, Bile Acids

lateral asymmetry

asymmetry

Transverse asymmetry

Flippases

phase separation

you can see the lateral asymmetry

palmitic acid

16:0

Stearic acid

18:0

Oleic acid

18:1

9-octadecanoic acid

linoleic acid

18:2

9,12-octadecandeioic

arachidonic acid

20:4

5,8,11,14

enantiomers

D and L

Diastereomers

not mirror images

epimer

different at one chiral carbon

anomer

different at anomeric carbon only

O-linked

Serine and Theorine

N-linked

N (asparagine)