BIOCHEM - All 20 Amino Acids

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A Ala Alanine

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G Gly Glycine

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I Ile Isoleucine

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L Leu Leucine

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M Met Methionine

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P Pro Proline

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V Val Valine

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F Phe Phenylalanine

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Y Tyr Tyrosine 10

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W Trp Tryptophan

Aromatic R group amino acids are ____

Relatively nonpolar (hydrophobic)

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S Ser Serine 13.5

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T Thr Threonine 13

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C Cys Cysteine 8

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N Asn Asparagine

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Q Gln Glutamine

List the amino acids in the Polar, Uncharged R Group (side chain obtains electroneg atoms ie O and N)

[Hint: There are 6]

Serine, Threonine, Cysteine, Asparagine, Glutamine, and Tyrosine

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K Lys Lysine 11.5

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R Arg Arginine 12.5

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H His Histidine 6

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D Asp Aspartic Acid 4

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E Glu Glutamic acid 4.25

What is the pKa of the alpha carboxyl (COO-) of an amino acid?

2.5

What is the pKa of the alpha amine (NH3+) of an amino acid?

9.5

Name the amino acids w/ aliphatic side chains (nonpolar):

(Hint: There are 6)

Glycine, Alanine, Valine, Leucine, Isoleucine, and Metionine

Name the hydrophobic amino acids:

(Hint: There are 7)

Glycine, Alanine, Valine, Leucine, Isoleucine, Metionine, and Proline

Name the 3 aromatic amino acids:

Phenylalanine, Tyrosine, Tryptophane

Name the 2 amino acids with sulfur containing side chains:

Cysteine and Methionine

Name the two amino acids that contain an aliphatic hydroxyl group:

Serine and Threonine

Basic amino acids: Highly polar and positively charged R group

(Hint: There are 3)

Lysine, Arginine, Histidine

Acidic amino acids: Highly polar and negatively charged R group

Aspartic acid and Glutamic acid

What is the uncharged version of Aspartic Acid?

Asparagine

What is the uncharged version of Glutamic acid?

Glutamine