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Small-angle X-ray scattering study by synchrotron orbital radiation reveals that high molecular weight subunit of glutenin is a very anisotropic molecule.

Abstract：

:Small-angle X-ray scattering of one high molecular weight (HMW) subunit of wheat glutenin was measured at protein concentration ranges from 1.0 to 10.0 mg/ml. The radius of gyration of whole particles, RO, in aq. 50% (v/v) 1-propanol and 0.1M acetic acid was 16.6 +/- 0.1nm and 22.8nm, respectively, and the corresponding radius of gyration of the cross-section, RC, was 2.82 +/- 0.02 nm and 2.23 +/- 0.01 nm, which indicate that the glutenin HMW subunit exists as very anisotropic particles in both solutions. The RO and RC values of the subunit, and the drastic decrease in scattered intensity at small angles that occurs in the acetic acid solution with relatively low protein concentration are completely explained in terms of rod-like molecules of the glutenin HMW subunit.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Matsushima N,Danno G,Sasaki N,Izumi Y

doi

10.1016/0006-291x(92)90854-e

subject

Has Abstract

pub_date

1992-07-31 00:00:00

pages

1057-64

issue

2

eissn

0006-291X

issn

1090-2104

pii

0006-291X(92)90854-E

journal_volume

186

pub_type

杂志文章

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