Janin Plot: Difference between revisions
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In biochemistry, a '''Janin plot''' is like a [[Ramachandran plot]] — a way to visualize [[dihedral angle]] distributions in protein structures. While a Ramachandran plot relates the two backbone dihedral angles, a Janin plot relates the first side chain dihedral angle χ-1 against χ-2. Because not all amino acids have these dihedral angles, a Janin plot is not applicable to all such acids. |
In biochemistry, a '''Janin plot''' is like a [[Ramachandran plot]] — a way to visualize [[dihedral angle]] distributions in protein structures. While a Ramachandran plot relates the two backbone dihedral angles, a Janin plot relates the first side chain dihedral angle χ-1 against χ-2. Because not all amino acids have these dihedral angles, a Janin plot is not applicable to all such acids. |
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This correlation is different for the various amino acids and can depend on the type of secondary structure (Helix, Sheet, etc.) local to that residue. The plot is named for |
This correlation is different for the various amino acids and can depend on the type of secondary structure (Helix, Sheet, etc.) local to that residue. The plot is named for Joël Janin, who studied these correlations in 1978.<ref name="Janin">{{cite doi|10.1016/0022-2836(78)90408-4}}</ref> |
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==References== |
==References== |
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Revision as of 02:47, 9 March 2013
In biochemistry, a Janin plot is like a Ramachandran plot — a way to visualize dihedral angle distributions in protein structures. While a Ramachandran plot relates the two backbone dihedral angles, a Janin plot relates the first side chain dihedral angle χ-1 against χ-2. Because not all amino acids have these dihedral angles, a Janin plot is not applicable to all such acids.
This correlation is different for the various amino acids and can depend on the type of secondary structure (Helix, Sheet, etc.) local to that residue. The plot is named for Joël Janin, who studied these correlations in 1978.[1]
References
- ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1016/0022-2836(78)90408-4, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with
|doi=10.1016/0022-2836(78)90408-4instead.