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9 Cards in this Set
- Front
- Back
What is this? How do you know?
What is its pka? |
Histidine - look for a non-aromatic ring structure w double bonds. (N+)
pka = 6 Charged if protonated. |
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What is this? How do you know?
What is it's pka? |
Glutamate = -O at the bottom. Charged if unprotonated.
pka = 4 |
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What is this?
What is it's pka? |
aspartate = look for -O at bottom.
pka= 4 Charged if unprotonated |
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What is this?
What it its pka? |
Lysine = NH3+ at bottom.
pka = 10 Charged if protonated |
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What is this? How do you know?
What is its pka? |
Arginine
NH2+ double bond at bottom pka = 12 Charged if protonated |
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What is this? How do you know?
What is its pka? |
Cysteine
the SH bond at the end pka = 8 |
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What is this? How do you know?
What is its pka? |
Tyrosine
Look for the phenol group. pka = 10 |
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What is this?
How do you know? What is its pka? |
Proline
Look for the ring structure with 3 CH2 groups. Makes an N+ pka = 9 ONLY WHEN PROLINE IS THE N TERMINAL AA. Charged if protonated. |
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What is the pka of a free carboxyl terminus end in an AA?
What is the pka of an alpha-amino on AA? |
Carboxyl terminus = pka 3
N-terminal amino end = 8 |
