AZCOM Biochem Test 1

How many nonpolar amino acids are there?

11

How many polar amino acids?

9

Major features of nonpolar, hydrophobic amino acids?

H side chain, ch3 side chain, branched chain hydrocarbon, aromatic rings, sulfur atom, and imino acid

Glycine (R major feat., interaction, group?)

H side chain, hydrophobic, nonpolar

Alanine (R major feat., interaction, group?)

Ch3 side chain, hydrophobic, nonpolar

Branched chain hydrocarbon, hydrophobic, nonpolar

Valine, leucine, isoleucine

Methionine (R major feat., interaction, group?)

Sulfur atom, hydrophobic, nonpolar

Phenylalanine (R major feat., interaction, group?)

Ring, hydrophobic, nonpolar

Tryptophan (R major feat., interaction, group?)

Ring, hydrophobic, nonpolar

Proline (R major feat., interaction, group?)

Imino acid, hydrophobic, nonpolar

3 types of polar amino acids?

Uncharged, acidic (negative) charged, basic (positive) charged

Hydroxyl group, h bonds, uncharged polar

Serine, threonine, tyrosine

Uncharged polar, h bonds, carboxamide group

Asparagine and glutamine

Cysteine (R major feat., interaction, group?)

Sulfhydryl group (SH), h bonds and disulfide bonds, uncharged polar

Acidic charged polar, h and ionic bonds, carboxyl group

Aspartic and glutamic acid

Basic charged polar, h and ionic bonds, basic group

Histidine, lysine, arginine