Midterm 1 Flashcards

1
Q

Alanine 3 letter and 1 letter code

A

Ala

A

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2
Q

Alanine structure

A

Ala

A

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3
Q

Glycine 3 and 1

A

Gly

G

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4
Q

Valine 3 and 1

A

Val

V

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5
Q

Leucine 3 and 1

A

Leu

L

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6
Q

Isoleucine 3 and 1

A

Ile

I

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7
Q

Methionine 3 and 1

A

Met

M

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8
Q

Proline 3 and 1

A

Pro

P

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9
Q

Phenylalanine 3 and 1

A

Phe

F

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10
Q

Tryptophan 3 and 1

A

Trp

W

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11
Q

Serine 3 and 1

A

Ser

S

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12
Q

Glycine st

A

Gly

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13
Q

Valine st

A

Val

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14
Q

Leucine st

A

Leu

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15
Q

Isoleucine st

A

Ile

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16
Q

Methionine st

A

Met

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17
Q

Proline st

A

Pro

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18
Q

Phenylalanine st

A

Phe

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19
Q

Trp st

A

Trp

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20
Q

Ser st

A

Ser

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21
Q

Threonine 3 and 1

A

Thr

T

22
Q

Threonine structure

A

Thr

23
Q

Asparagine 3 and 1

A

Asn

N

24
Q

Asparagine structure

A

Asn

25
Q

Glutamine 3 and 1

A

Gln

Q

26
Q

Glutamine sturcture

A

Gln

27
Q

Tyrosine 3 and 1

A

Tyr

Y

28
Q

Tyrosine structure

A

Tyr

29
Q

Cysteine 3 and 1

A

Cys

C

30
Q

Cysteine structure

A

Cys

31
Q

Lysine 3 and 1

A

Lys

K

32
Q

Lysine structure

A

Lys

33
Q

Arginine 3 and 1

A

Arg

R

34
Q

Arginine structure

A

Arg

35
Q

Histidine 3 and 1

A

His

H

36
Q

Aspartic acid 3 and 1

A

Asp

D

37
Q

Aspartic acid structure

A

Asp

38
Q

Glutamic acid 3 and 1

A

Glu

E

39
Q

Glutamic acid structure

A

Glu

40
Q

Basic amino acids

A

Lys, Arg, HIs

41
Q

Acidic aa

A

Asp Glu

42
Q

How are acidic and basic aa classified?

A

Based on whether the neutral form is an acid or a base

43
Q

1 Dal =

A

1/12 of mass of 12C

therefore equals 1 g/mol

44
Q

Determining L and D configuration

A

with H pointing towards you,
L form Co R N is in clockwise direction
D form is in counterclockwise direction

45
Q

Henderson Hassel back

A

pH= pKa+ log ( base/ acid)

46
Q

non polar aa

A

G, A , V, I < L , M, F, W, P

47
Q

polar no charge aa

A

G, Y, S, T, N Q, C, H

48
Q

cys can form disulphide bridges in

A

oxidative environments

in reducing environments in the cytoplasm, the cys does not form disulpide bridges

49
Q

pH less than pKa

A

remains in the protonated form

50
Q

pH= pKa

A

half and half of protonated and deprotonated form

51
Q

pH> pKa

A

mostly in deprotonated form

52
Q

pI

A

pH at which the molecule is neutral