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Biochemistry > Protein Structure > Flashcards

Protein Structure Flashcards

1
Q

A peptide bond forms between…

A
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2
Q

what type of reaction forms to create a peptide bond

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3
Q

Asymmetric Bond:

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4
Q

Peptide Nomenclature I

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5
Q

Peptides/Oligopeptides

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6
Q

Polypeptide

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7
Q

Protein

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8
Q

Amino Acids and Charge

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9
Q

Primary Structure

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10
Q

Peptide bonds can be rigid:

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11
Q

However in the other resonance conformation there is…

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12
Q

Peptide bonds are planar:

A

whenthe nitrogen delocalizes the electrons to the carbonyl group this restricts rotation making them planar

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13
Q

The Rotation of Polypeptide Backbones is Limited

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14
Q

Polypeptide Bonds: H bonding

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15
Q

Secondary Structure

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16
Q

Alpha Helix:

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17
Q

Proline is not found in the…

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18
Q

alpha helix..left or right handed structure

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19
Q

Every turn in an alpha helix group is … amino acid residues:

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20
Q

Atoms in the polypeptide backbone can interact with eachother through…

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21
Q

Side chains of the amino acid are not involved in…

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22
Q

Beta sheets are stabilized by hydrogen bonds between…

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23
Q

beta sheets: parallel

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24
Q

Antiparallel

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25
Q

Side chains point above or below the…

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26
Q

ß-sheets are often drawn as arrows

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27
Q

Forces that stabilize alpha helices:

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28
Q

Forces that stabilize beta sheets:

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29
Q

Irregular Structures:

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30
Q

Tertiary Structure:

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31
Q

Tertiary Structure: Fibrous Proteins

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32
Q

Globular proteins are stabilized by…and can be broken by…

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33
Q

lon Pairs/Salt Bridges

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34
Q

Positive Charges

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35
Q

Negative Charges

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36
Q

Disulfide Bonds/Bridges

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37
Q

Domain

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38
Q

Motif

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39
Q

Prosthetic Groups

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40
Q

Quaternary Structure

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Biochemistry (5 decks)

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