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Amino Acid pKa's
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N terminal -NH
3
+
~9-10
C Terminal -COO
-
~2-2.5
COOH (Glutamate (E) and Aspartate (D))
~4
Histidine (H)
~6-7
Cysteine (C)
~8
Lysine (K) and Tyrosine (Y)
~10.5
Arganine (R)
~12.5
pH much GREATER than pKa
Deprotonated
pH much LESS than pKa
Protonated
Author
pwendland
ID
128767
Card Set
Amino Acid pKa's
Description
Amino Acid parts and their pKa's
Updated
2012-01-18T22:22:35Z
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