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- Amide_ring abstract "Amide Rings are small motifs in proteins and polypeptides. They consist of 9-atom or 11-atom rings formed by two CO...HN hydrogen bonds between a side chain amide group and the main chain atoms of a short polypeptide. They are observed with glutamine or asparagine side chains within proteins and polypeptides. Structurally similar rings occur in the binding of purine, pyrimidine and nicotinamide bases to the main chain atoms of proteins. About 4% of asparagines and glutamines form amide rings; in databases of protein domain structures, one is present, on average, every other protein.In such rings the polypeptide has the conformation of beta sheet or of type II polyproline helix (PPII). A number of glutamines and asparagines help bind short peptides (with the PPII conformation) in the groove of class II MHC (Major Histocompatibility Complex) proteins by forming these motifs. Another amide ring occurs at the interior of the variable domains of some Immunoglobulin G antibodies and assists in linking the two beta-sheets.".
- Amide_ring wikiPageID "44217608".
- Amide_ring wikiPageLength "1834".
- Amide_ring wikiPageOutDegree "22".
- Amide_ring wikiPageRevisionID "701498597".
- Amide_ring wikiPageWikiLink Asparagine.
- Amide_ring wikiPageWikiLink Beta_sheet.
- Amide_ring wikiPageWikiLink Category:Protein_structural_motifs.
- Amide_ring wikiPageWikiLink Glutamine.
- Amide_ring wikiPageWikiLink Hydrogen_bond.
- Amide_ring wikiPageWikiLink Immunoglobulin_G.
- Amide_ring wikiPageWikiLink Major_histocompatibility_complex.
- Amide_ring wikiPageWikiLink Nicotinamide.
- Amide_ring wikiPageWikiLink Peptide.
- Amide_ring wikiPageWikiLink Polyproline_helix.
- Amide_ring wikiPageWikiLink Protein.
- Amide_ring wikiPageWikiLink Protein_domain.
- Amide_ring wikiPageWikiLink Purine.
- Amide_ring wikiPageWikiLink Pyrimidine.
- Amide_ring wikiPageUsesTemplate Template:Multiple_issues.
- Amide_ring wikiPageUsesTemplate Template:Original_research.
- Amide_ring wikiPageUsesTemplate Template:Orphan.
- Amide_ring wikiPageUsesTemplate Template:Refimprove.
- Amide_ring wikiPageUsesTemplate Template:Science-stub.
- Amide_ring subject Category:Protein_structural_motifs.
- Amide_ring hypernym Motifs.
- Amide_ring comment "Amide Rings are small motifs in proteins and polypeptides. They consist of 9-atom or 11-atom rings formed by two CO...HN hydrogen bonds between a side chain amide group and the main chain atoms of a short polypeptide. They are observed with glutamine or asparagine side chains within proteins and polypeptides. Structurally similar rings occur in the binding of purine, pyrimidine and nicotinamide bases to the main chain atoms of proteins.".
- Amide_ring label "Amide ring".
- Amide_ring sameAs Q18351735.
- Amide_ring sameAs m.01261mn6.
- Amide_ring sameAs Q18351735.
- Amide_ring wasDerivedFrom Amide_ring?oldid=701498597.
- Amide_ring isPrimaryTopicOf Amide_ring.