The biological activity of toyocamycin has been examined on the basis of the model developed by Sanyal et al. for the incorporation of nucleoside analogs during transcription. Using the simplified formula of Claverie for intermolecular interactions, computations have been carried out on the pairing
Interaction energy studies of pyrrolopyrimidine nucleoside antibiotics: Sangivamycin
โ Scribed by Nitish K. Sanyal; Rajendra Prasad Ojha; M. Roychoudhury; S. N. Tiwari
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 389 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0192-8651
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โฆ Synopsis
Interaction energy calculations have been employed to study the biological activity of sangivamycin. The interaction energy values and the site of association of the analog have been compared with those for the nucleic acid bases. A comparative estimation of the results with those of other pyrrolopyrimidine nucleosides (Tubercidin and Toyocamycin) has been made. These studies suggest that the activity of pyrrolopyrimidine analogs is of the following order Toyocamycin > Tubercidin > Sangivamycin which is in general agreement with the experimental results.
๐ SIMILAR VOLUMES
On the basis of intermolecular interaction energy studies, the possibility of incorporation of a pyrrolopyrimidine nucleoside analog has been examined. Both stacking as well as in-plane (hydrogen bonding) interactions have been considered for computing the association energy of analogous base (tuber
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The quantum mechanical perturbation method has been utilized to explain the biological function of 8-azapurine nucleoside analogs. The possibility of binding of the analog has been discussed in terms of interaction energy, which includes the electrostatic, polarization, dispersion, and repulsion ter