Salt bridges
From Proteopedia
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| - | + | In proteins, salt bridges occur between amino acid side-chains with opposite positive or negative full-electron charges, namely, (at neutral pH) Glu- or Asp- vs. Arg+ or Lys+. They can also occur between an inorganic ion, such as K+ or Cl-, and an amino acid side-chain. | |
| - | Putative salt bridges can be displayed by | + | A salt bridge is generally considered to exist when the centers of charge are 4 Å or less apart<ref>Jeffrey, George A., An introduction to hydrogen bonding, Oxford University Press, 1997. Page 192.</ref>. The energetic significance of such complementary charge pairs is a complex function of the local environment. |
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| + | Putative salt bridges can be displayed by [[FirstGlance in Jmol]]. | ||
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| + | ==References== | ||
| + | <references /> | ||
Revision as of 18:12, 3 February 2010
In proteins, salt bridges occur between amino acid side-chains with opposite positive or negative full-electron charges, namely, (at neutral pH) Glu- or Asp- vs. Arg+ or Lys+. They can also occur between an inorganic ion, such as K+ or Cl-, and an amino acid side-chain.
A salt bridge is generally considered to exist when the centers of charge are 4 Å or less apart[1]. The energetic significance of such complementary charge pairs is a complex function of the local environment.
Putative salt bridges can be displayed by FirstGlance in Jmol.
References
- ↑ Jeffrey, George A., An introduction to hydrogen bonding, Oxford University Press, 1997. Page 192.
