## Physical principles and techniques of protein chemistry, Volume 3 |

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Page 470

When the transition is electrically and magnetically allowed (case I), the zero-

order term dominates the expression for

the corresponding absorption and CD bands of a transition will be centered at the

...

When the transition is electrically and magnetically allowed (case I), the zero-

order term dominates the expression for

**rotational strength**and it is predicted thatthe corresponding absorption and CD bands of a transition will be centered at the

...

Page 505

Finally, the

perpendicular to one another [or for that matter when R21 || z-axis; see Eq. (75)].

The symmetry rule here applies in general not only to a system composed of ...

Finally, the

**rotational strength**is zero whenever the transition axes are parallel orperpendicular to one another [or for that matter when R21 || z-axis; see Eq. (75)].

The symmetry rule here applies in general not only to a system composed of ...

Page 508

In essence, the net

components: one (Rą = +1.17 DBM = —R{) is the "normal" perpendicular

component which one expects from the parallel-perpendicular splitting of the ir°^

n~ ...

In essence, the net

**rotational strength**here can be regarded as the sum of twocomponents: one (Rą = +1.17 DBM = —R{) is the "normal" perpendicular

component which one expects from the parallel-perpendicular splitting of the ir°^

n~ ...

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### Common terms and phrases

a-helix absorption acid angle axial ratio Biol calculated CD spectra Chem chromophore circular dichroism coefficient Cohn complex conformation constant contribution corresponding Cotton effects creatine kinase denaturation determined dialyzate diffusible components dilute electron density enzyme equation equilibrated equilibrium exciton experimental frequency function gm/ml grams helical helix hemocyanin hemoglobin intensity interaction isomolal kinase Kratky macromolecule magnetic mass measurements membrane method milliliter mixture molal molecular weight molecule myoglobin negative nondiffusible number of moles observed obtained optical activity osmometers osmotic pressure paramagnetic parameter partial specific volume peptide Phys Pilz plot polymer polypeptides positive primary beam procedure protein component protein concentration protein solution pulse radius of gyration random coil residues rotational strength sample Scatchard Schellman Section shape small-angle scattering solvent solvent medium spectrum sphere structure studies subunits techniques temperature theoretical scattering curves tion transition volume change wavelength zero