• Bulletin of the Korean Chemical Society
• /
• 제24권6호
• /
• pp.802-804
• /
• 2003

The relative stabilities of weak binding clusters are sensitive to temperature due to the entropy effect. Thus, here we report significant changes in relative stabilities between two low-energy electron-water trimer structures and those between three low-energy electron-water pentamer structures, as the temperature increases. The trimer and pentamer show structural changes around 200 K.

• Bulletin of the Korean Chemical Society
• /
• 제25권7호
• /
• pp.957-958
• /
• 2004

• Journal of Photoscience
• /
• 제10권1호
• /
• pp.81-87
• /
• 2003

Based on structural information provided by recently reported crystal structures of rhodopsin, we present rationales for the regiospecific protein perturbation on the previously reported $\^$19/F chemical shifts of the vinyl and trifluoromethylrhodopsins and their photoproducts. The crystal structures also suggest that H-bonding is a likely cause for the earlier reported regiospecific photoisomerization of the 10-fluororhodopsins. Photoisomerization was revealed by chemical shift of the photoproducts. Additionally, possible use of 3-bond F,F coupling constants for following photoisomerization of retinal-binding proteins is discussed.

• Bulletin of the Korean Chemical Society
• /
• 제29권10호
• /
• pp.2043-2046
• /
• 2008

• 한국생물공학회:학술대회논문집
• /
• 한국생물공학회 2005년도 생물공학의 동향(XVII)
• /
• pp.628-628
• /
• 2005

• Bulletin of the Korean Chemical Society
• /
• 제23권11호
• /
• pp.1585-1589
• /
• 2002

Two novel calixarene-based fluoroionophores were synthesized. Their conformations were confirmed to 1,3-alternate by X-ray crystal structures. From CHEF by blocking the PET mechanism in fluorescence spectra, we observed $In^{3+}$ and $Pb^{2+}$ selectivity over other metal ions. For $In^{3+}$ion, calix[4]-bis-azacrown-5 showed about 20 times more sensitive than calix[4]-mono-azacrown-5 because the source of the binding selectivity comes from the calixarene framework and azacrown ligand by controlling the fluorescence and PET mechanisms as-sociated with the amine moiety.

• Bulletin of the Korean Chemical Society
• /
• 제26권3호
• /
• pp.470-472
• /
• 2005

• Bulletin of the Korean Chemical Society
• /
• 제27권8호
• /
• pp.1227-1230
• /
• 2006

• Bulletin of the Korean Chemical Society
• /
• 제28권3호
• /
• pp.474-476
• /
• 2007

• BMB Reports
• /
• 제33권1호
• /
• pp.89-91
• /
• 2000

In this investigation we report our search for the presence of Leucine Rich Repeats (LRRs) in various Bacillus thuringiensis (Bt) sub species. Leucine rich repeats are short sequence motifs present in some proteins. The consensus sequence corresponding to the LRR was present in Crystal proteins of Bacillus thuringiensis sub species. This LRR sequence has been predicted to be involved in proteinprotein interactions or receptor binding functions, hence the importance of this study.