Journal of Amino Acids / 2012 / Article / Tab 1

Research Article

Correlation of TrpGly and GlyTrp Rotamer Structure with W7 and W10 UV Resonance Raman Modes and Fluorescence Emission Shifts

Table 1

Fluorescence emission maxima, experimental and calculated W10 band peaks and W7 Fermi doublet band ratio, (1360 cm−1)/ (1340 cm−1), for GW and WG dipeptides at pH 5.5 and 9.3. Parenthetical values are for shifts relative to values for the WG zwitterion species.

Peptide, pHExperimental W10 Raman Shift (cm−1)Calculated W10 Raman Shift (cm−1)W7 Fluorescence emission (nm)

WG, 5.5124212711.0347
WG, 9.31239 (−3)1267 (−4)1.4355 (+8)
GW, 5.51235 (−7)1268 (−3)1.6357 (+10)
GW, 9.31236 (−6)1262 (−9)1.6357 (+10)