Physical Principles and Techniques of Protein Chemistry, Part 3Sydney J. Leach |
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Page 378
... helical and coiled conformations . = = From the position of the resolved absorption and CD bands of helical and randomly coiled polypeptides ( see Section IV ) it is apparent that a1 and a2 at λ1 193 nm and A2 225 nm are not actual ...
... helical and coiled conformations . = = From the position of the resolved absorption and CD bands of helical and randomly coiled polypeptides ( see Section IV ) it is apparent that a1 and a2 at λ1 193 nm and A2 225 nm are not actual ...
Page 415
... helical poly - L - tyrosine into four com- ponent Gaussian bands at 270 and 248 nm for tyrosine and at 224 and 190 nm for the a - helical Cotton effects . Kronig - Kramers transformations of these components into ORD curves yielded a ...
... helical poly - L - tyrosine into four com- ponent Gaussian bands at 270 and 248 nm for tyrosine and at 224 and 190 nm for the a - helical Cotton effects . Kronig - Kramers transformations of these components into ORD curves yielded a ...
Page 416
... helical form at pH 5.78 , this becomes a negative Cotton effect . Thus the n- * Cotton effect of the a - helix may overshadow the side - chain Cotton effects ( see , e.g. , Beychok , 1967 ) . This probably explains why the levorotation ...
... helical form at pH 5.78 , this becomes a negative Cotton effect . Thus the n- * Cotton effect of the a - helix may overshadow the side - chain Cotton effects ( see , e.g. , Beychok , 1967 ) . This probably explains why the levorotation ...
Contents
F Density and Composition | 16 |
Direct Volume Change | 22 |
Density | 32 |
Copyright | |
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a-helix absorption acid Amer angle B-structure band Biochem Biochemistry Biol c₂ calculated CD spectra Chem chemical potential chromophore coefficient conformation constant Cotton effects cross-section denaturation determined dialyzate difference diffusible components dilute Donnan electron density enzyme equation equilibrated equilibrium exciton experimental function gm/ml grams helical helix hemocyanin hemoglobin intensity interaction Kratky Kupke Linderstrøm-Lang macromolecules magnetic measurements membrane method mixture molal molecular weight molecule monomer myoglobin negative nondiffusible components nonideality number of moles obtained optical activity osmometers osmotic pressure parameter partial specific volume particles peptide Phys Pilz plot polymer polypeptides positive potential procedure protein component protein concentration protein solution radius of gyration random coil residues rotational strength salt sample Scatchard Schellman Section shape small-angle scattering solvent solvent medium spectrum sphere structure subunits temperature Tinoco tion transition v₂ volume change wavelength zero