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Biochemistry > Amino acids > Flashcards

Amino acids Flashcards

1
Q

Acidic Amino Acids

A

Aspartate

Glutamate

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2
Q

Basic Amino Acids

A

Histidine
Arginine
Lysine

HKR

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3
Q

Non-polar Amino acids

A 
Leucine
Isoleucine
Valine
Alanine
Glycine
Phenylalanine
Tryptophan
Methionine
Proline

GAVIL MPWF

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4
Q

Amino acid used in the first steo of heme synthesis

A

Glycine

Glycine + Succijyl CoA

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5
Q

Amino acid that is a carrier of ammonia

A

Alanine

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6
Q

Branched chain amino acin

A

Leucine
Isoleucine
Valine

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7
Q

Ringed amino acid

A

Phenylalanine
Tyrosine
Tryptophan

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8
Q

Precursor of tyrosine

A

Tryptophan

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9
Q

Imino acid

A

Proline

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10
Q

Uncharged, polar amino acid

A 
Serine
Threonine
Tyrosine
Cysteine
Qlutamine
Asparagine

STCY-QN

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11
Q

Tyrosine derivatices

A

Phenylalanine
Tyrosine
L dopa –> L-dopamine –> dopamine –> Norepinephrine –> epinephrine

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12
Q

Site for N-linked glycosylation

A

Asparagine

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13
Q

Major carrier of nitrogen to the liver from the tissues

A

Glutamine

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14
Q

Participates in the biosynthesis of coenzyme A

A

Cysteine

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15
Q

Precursor if glutathione and GABA

A

Glutamate

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16
Q

Proton acceptors

A

Histidine
Arginine
Lysins

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17
Q

Used in the diagnosis of folic acid deficiency

A

Histidine

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18
Q

Precursor of creatinine, urea, and nitric oxide

A

Arginine

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19
Q

Precursor if carnitine

A

Lysine

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20
Q

Essential Amino Acids

A 
Phe
Val
Try
Thr
Iso
Met
His
Arg
Leu
Lys
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21
Q

What are you polar uncharged proteins with hydroxyl group?

A

Serine
Threonine
Tyrosine

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22
Q

What are you polar uncharged proteins with -SH group

A

cystein

23
Q

What are you polar uncharged proteins with amide group?

A

Asparatine

Glutamine

24
Q

What amino acid is needed in the first step of heme synthesis?

A

glycine

Step 1: Glycine + succinyl CoA –> delta ALA

25
Q

Glycine is a ___ (excitatory/inhibitory) in the spinal cord?

A

inhibitory

26
Q

What amino acid is a carrier of ammonia?

A
  1. Alanine
27
Q

What amino acid is a carrier of the carbons of pyruvate from skeletal muscle to liver?

A

Alanine

28
Q

What amino acids are needed for the disposal of ammonia?

A
  1. Glutamine
  2. Glutamate
  3. Alanine
29
Q

Wha amino acids accumulate in maple syrup disease?

A
  1. Valine
  2. Isoleucine
  3. Leucine

Remember: IsoVLeucine

30
Q

What are your tryptophan derivative?

A

Melatonin
Serotonin
Niacin

31
Q

What amino acid has the largest side chain?

A

Methionine

MET = MEGA MAGAZINE

32
Q

What amino acid is the precursor of tyrosine?

A

Phenylalanine

33
Q

Amino acid with no amine group

A

Proline, since it is an IMINO acid

34
Q

What amino acids are used as site for O-linked glycosylation and phosphorylation of proteins

A

Serine, Threonine, Tyrosine

35
Q

What are your phenylalanine derivatives?

A
  1. Phenylalanine
  2. Tyrosine
  3. L-dopa
  4. Dopamine
  5. Norepinephrine
  6. Epinephrine
36
Q

___ is the site for N-linked glycosylation

A

asparagine

37
Q

What enzyme deaminates glutamine to form ammonia

A

glutaminase

38
Q

__ protein that is a major carrier of nitrogen from peripheral tissue to the liver

A

alanine

39
Q

___ is an active part of many enzyme; especially in coenzyme A biosynthesis

A

Cysteine

40
Q

amino acid that is seen in keratin

A

Cysteine

41
Q

At neutral pH, what is the charge of aspartate and glutamate?

A

negatively charged

can serve as proton donors, and participate in ionic interaction

42
Q

what amino acid is the precursor of GABA

A

glutamate

43
Q

What amino acid is a precursor of glutathione?

A

glutamate

44
Q

in the brain, glutamate is ___ (inhibitory or excitatory)

A

excitatory

45
Q

What enzyme converts glutamate to GABA?

A

Glutamate decarboxylase

46
Q

Of the three basic amino acid, which is base is the weakest?

A

Histidine

47
Q

What amino acid is detected in FIGLU excretion test?

A

histidine

48
Q

What enzyme converts histidine to FIGLU?

A

histidase

49
Q

What amino acid is a precursor of creatinine and urea?

A

arginine

50
Q

what amino acid is a precursor of nitric oxide?

A

arginine

51
Q

What is the precursor of carnitine?

A

lysine

52
Q

What amino acid is present in lathyrus seeds?

A

homoarginine and beta-N-Oxalydiaminopriopionic acids (beta ODAP)

53
Q

What neurotoxic amino acid is present in Cycad seeds?

A

beta-methyalaminoalanine

54
Q

Which amino acid has no chiral center?

A

glycine

Biochemistry (28 decks)

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