Biochemistry Chapter 3: Amino Acids

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83 Terms

1
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glycine, alanine, proline, valine, leucine, isoleucine, methionine

Which Amino Acids are non-polar (aliphatic)?

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phenylalanine, tyrosine, tryptophan

Which Amino Acids are aromatic?

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serine, threonine, cysteine, asparagine, glutamine

Which Amino Acids are polar (uncharged)?

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lysine, arginine, histidine

Which Amino Acids are positively charged?

5
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aspartate, glutamate

Which Amino Acids are negatively charged?

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Glycine

Name the amino acid

<p>Name the amino acid</p>
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Alanine

Name the amino acid

<p>Name the amino acid</p>
8
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Proline

Name the amino acid

<p>Name the amino acid</p>
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Valine

Name the amino acid

<p>Name the amino acid</p>
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Leucine

Name the amino acid

<p>Name the amino acid</p>
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Isoleucine

Name the amino acid

<p>Name the amino acid</p>
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Methionine

Name the amino acid

<p>Name the amino acid</p>
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Phenylalanine

Name the amino acid

<p>Name the amino acid</p>
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Tyrosine

Name the amino acid

<p>Name the amino acid</p>
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Tryptophan

Name the amino acid

<p>Name the amino acid</p>
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Serine

Name the amino acid

<p>Name the amino acid</p>
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Threonine

Name the amino acid

<p>Name the amino acid</p>
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Cysteine

Name the amino acid

<p>Name the amino acid</p>
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Asparagine

Name the amino acid

<p>Name the amino acid</p>
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Glutamine

Name the amino acid

<p>Name the amino acid</p>
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Lysine

Name the amino acid

<p>Name the amino acid</p>
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Arginine

Name the amino acid

<p>Name the amino acid</p>
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Histidine

Name the amino acid

<p>Name the amino acid</p>
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Aspartate

Name the amino acid

<p>Name the amino acid</p>
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Glutamate

Name the amino acid

<p>Name the amino acid</p>
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Gly

Three letter code for Glycine

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Ala

Three letter code for Alanine

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Pro

Three letter code for Proline

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Val

Three letter code for Valine

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Leu

Three letter code for Leucine

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Ile

Three letter code for Isoleucine

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Met

Three letter code for Methionine

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G

One letter code for Glycine

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A

One letter code for Alanine

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P

One letter code for Proline

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V

One letter code for Valine

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L

One letter code for Leucine

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I

One letter code for Isoleucine

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M

One letter code for Methionine

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Phe

Three letter code for Phenylalanine

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Tyr

Three letter code for Tyrosine

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Trp

Three letter code for Tryptophan

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F

One letter code for Phenylalanine

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Y

One letter code for Tyrosine

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W

One letter code for Tryptophan

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Ser

Three letter code for Serine

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Thr

Three letter code for Threonine

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Cys

Three letter code for Cysteine

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Asn

Three letter code for Asparagine

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Gln

Three letter code for Glutamine

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S

One letter code for Serine

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T

One letter code for Threonine

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C

One letter code for Cysteine

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N

One letter code for Asparagine

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Q

One letter code for Glutamine

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Lys

Three letter code for Lysine

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Arg

Three letter code for Arginine

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His

Three letter code for Histidine

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K

One letter code for Lysine

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R

One letter code for Arginine

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H

One letter code for Histidine

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Asp

Three letter code for Aspartate

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Glu

Three letter code for Glutamate

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D

One letter code for Aspartate

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E

One letter code for Glutamate

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Glycine

Which AA(s) provides the least steric hindrance and the only AA that is achiral?

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Lycine

Arginine

Histidine

Which AA(s) are positively charged at physiological pH?

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Tryptophan

Which AA(s) have an aromatic R group and contribute to maximum absorbance at 280 nm wavelength?

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Histidine

The only AA having an R group with pKa around physiological pH (~7); important in active site of proteins as can function as acid or base in proteins

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Proline

The only AA with substituted α-amino group; influences protein folding by forcing a bend in the chain

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Arginine

Which AA has a guanidinium functional group?

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Histidine

Which AA has an imidazole ring?

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Cysteine

Which AA(s) forms disulfide bonds?

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Serine

Threonine

Tyrosine

Which AA(s) have hydroxyl functional group in the side chain. Thus, undergo phosphorylation when present in proteins?

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Leucine

Isoleucine

Which AA(s) are constitutional isomers?

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Cysteine

Serine

Which AA(s) are only different by one atom?

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Lysine

Arginine

Histidine

Aspartate

Glutamate

Tyrosine

Cystine

Name all of the AA's that have an additional third pKa value corresponding to the R-group

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Hydrophobic effect

Identify the interactions between the R-groups of: Phenylalanine and Leucine

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Ionic interactions

Identify the interactions between the R-groups of: Lysine and Aspartate

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Hydrogen bonds

Identify the interactions between the R-groups of: Serine and Asparagine

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Ionic interactions

Identify the interactions between the R-groups of: Aspartate and Asparagine

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Hydrophobic effect

Identify the interactions between the R-groups of: Arginine and Glutamate

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Hydrogen bonds

Identify the interactions between the R-groups of: Tyrosine and Glutamine