Amino acids

Question 1

Glycine

Answer 1

Question 2

Alanine

Answer 2

Question 3

Valine

Answer 3

Question 4

Leucine

Answer 4

Question 5

Isoleucine

Answer 5

Question 6

Serine

Answer 6

Question 7

Threonine

Answer 7

Question 8

Cysteine

Answer 8

Question 9

Methionine

“In der Mitte ist Schwefel”

Answer 9

Question 10

Aspartic Acid

Answer 10

Question 11

Asparagine

Answer 11

Question 12

Glutamic Acid

Answer 12

Question 13

Glutamine

Answer 13

Question 14

Lysine

Answer 14

Question 15

Arginine

“arg schwer”

Answer 15

Question 16

Histidine

“Fahne”

Answer 16

Question 17

Phenylalanine

“Penner der bettelt und sehr leicht ist”

Answer 17

Question 18

Thyrosine

“HO”

Answer 18

Question 19

Tryptophan

Answer 19

Question 20

Proline

Answer 20

Question 21

4 - Hydroxyproline

“Proline + an der 4. Stelle HO”

Answer 21

Question 22

5 - Hydroxylysine

Answer 22

Question 23

N - formylmethionine

“N bindet formyl Rest”

Answer 23

Question 24

Homocysteine

Answer 24

Question 25

Homoserine

Answer 25

Question 26

Citrulline

“Arginine mit O statt NH”

Answer 26

Question 27

Ornithine

“Lysin -CH₂“

Answer 27

Question 28

Beta - Alanine

Answer 28

Question 29

Taurine

Answer 29

Question 30

Gamma - Aminobutyric acid (GABA)

Answer 30

Question 31

Dihydoxypheylalanine (DOPA)

Answer 31

Question 32

Monoiodtyrosine (MIT)

Answer 32

Question 33

Diiodtyrosine (DIT)

Answer 33

Question 34

Triiodthyronine (T3)

Answer 34

Question 35

Tetraiodothyronine (T4)

Answer 35

Question 36

How many common amino aicds are in the structrue of proteins?

Answer 36

20

Question 37

Describe the structure of the amino acids

Answer 37

most of the amino acids (expect proline)

are alpha amino acids:

the amino group (NH₂) is linked to the same carbon atom to which the carboxyl group (COOH) is attached.

Question 38

Derived amnio acids found in proteins

Answer 38

after biosynthesis, some of the common amino acids are modified resulting these derived amino acids.

Example: hydroxyproline, hydroxylysine, N-formylmethionine (fMet)

Question 39

Derived amino acids not found in proteins

Answer 39

these amino acids are present in the cells as free amino acids (are not components of proteins) and are produced during the metabolism of amino acids.

Examples: homocysteine, homoserine, ornithine, citrulline, dihydroxphenylalanine (DOPA),

gamma-aminobutyric acid (GABA), taurine, monodotyrosine (MIT), diiodtyrosine (DIT), triiodthyronine (T₃), tetraiodthyronine or thyroxine (T₄)