Amino acids

Question 1

Glycine G Gly

Answer 1

Hydrophobic, not chiral/free rotation/flexible

Question 2

Alanine A Ala

Answer 2

Hydrophobic, branched chain

Question 3

Valine V Val

Answer 3

Hydrophobic, branched chain

Question 4

Leucine L Leu

Answer 4

Hydrophobic, branched chain

Question 5

Isoleucine I Ile

Answer 5

Hydrophobic, two chiral carbons (isoform)

Question 6

Methionine M Met

Answer 6

Hydrophobic, Sulphur (start amino acid )

Question 7

Phenylalanine F Phe

Answer 7

Hydrophobic, bulky (benzyl ring )

Question 8

Tryptophan W Trp

Answer 8

Hydrophobic, bulky (indole ring )

Question 9

Proline P Pro

Answer 9

cyclic, hairpin bend

Question 10

Cysteine C Cys

Answer 10

Hydrophobic, highly reactive (S-S link)

Question 11

Serine S Ser

Answer 11

Hydrophilic, reactive (O-linked glycoproteins )

Question 12

Threonine T Thr

Answer 12

Hydrophilic, reactive (O-linked glycoproteins )

Question 13

Tyrosine Y Tyr

Answer 13

Polar, bulky phenol ring(catechol precursor)

Question 14

Asparagine N Asn

Answer 14

Uncharged but polar (amide group)

Question 15

Glutamine Q Gln

Answer 15

Uncharged but polar (amide group)

Question 16

Aspartate D Asp

Answer 16

Highly hydrophilic, negatively charged

Question 17

Glutamate E Glu

Answer 17

Highly hydrophilic, negatively charged

Question 18

Lysine K Lys

Answer 18

Highly hydrophilic, basic , positively charged

Question 19

Arginine R Arg

Answer 19

Highly hydrophilic, basic , positively charged

Question 20

Histidine H His

Answer 20

Highly hydrophilic, imidazole, basic, positive