1999
DOI: 10.1016/s0040-4020(99)00539-6
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interaction in the conformation of organic compounds. A database study

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Cited by 245 publications
(132 citation statements)
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References 68 publications
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“…The group at position C␦2, thus, appears to interact with Tyr-485 to stabilize it in the open state. The position of Leu-398 in the Kv1.2 crystal structure suggests formation of a CH-interaction (45)(46)(47) between the aromatic ring of Tyr-485 and C␦2. Neither isoleucine nor valine contain a C␦2 group and, thus, are not positioned to develop the interaction.…”
Section: Discussionmentioning
confidence: 97%
“…The group at position C␦2, thus, appears to interact with Tyr-485 to stabilize it in the open state. The position of Leu-398 in the Kv1.2 crystal structure suggests formation of a CH-interaction (45)(46)(47) between the aromatic ring of Tyr-485 and C␦2. Neither isoleucine nor valine contain a C␦2 group and, thus, are not positioned to develop the interaction.…”
Section: Discussionmentioning
confidence: 97%
“…3b, that the structure consists mainly of turns and loops. In Zn 4 SmtA, a CH͞ interaction (33) between H(␣) of Ala-37, part of the ␣-helix, and the aromatic ring of Tyr-31, part of the ␤-sheet, provides direct communication between the two secondary structure elements (Fig. 4a), and accounts for the remarkable high-field shift of the H(␣) proton of Ala-37 (1.73 ppm; induced by the ring current of Tyr-31).…”
Section: Methodsmentioning
confidence: 99%
“…As multiple C-H/π interactions formed between side chains can be significant, they may be considered as one of the driving forces to constrain a peptide conformation and consequently direct specific conformation in many proteins [156]. Using the crystal structure database Nishio et al investigated the C-H/π interactions in peptides [157,158]. Evidence to indicate that 42% of the structures studied exhibited such aromatic interactions was found.…”
Section: C-h/π Hydrogen Bondsmentioning
confidence: 99%
“…The effect of substituents is a useful probe for the hydrogen bond character of C-H/π interactions, as in the formate ester 23 ( Figure 7) since, if it behaves like a conventional hydrogen bond, an electron donating substituent on the hydrogen bond acceptor should increase the interaction. From peptide studies it was found that C-H/π interactions are favored in 5-and 6-membered rings, and this prompted a further study of a series of organic molecules capable of forming 5-, 6-and 7-membered ring C-H/π interactions ( Figure 8) [166,157,168]. Electron donating substituents on the aromatic ring should raise the energy of the highest occupied π-orbital, and electron withdrawing substituents on the carbon atom of the C-H donor should lower the C-H antibonding orbital and hence the energy gap of the interacting orbitals required for a C-H/π hydrogen bond, thus making the interaction favorable.…”
Section: Intramolecular C-h/π Interactions and The Conformation Of Ormentioning
confidence: 99%