Send to

Choose Destination
See comment in PubMed Commons below
Acta Crystallogr D Biol Crystallogr. 2001 Nov;57(Pt 11):1669-70. Epub 2001 Oct 25.

Purification, crystallization and preliminary X-ray diffraction studies of disintegrin (schistatin) from saw-scaled viper (Echis carinatus).

Author information

  • 1Department of Biophysics, All India Institute of Medical Sciences, New Delhi 110 029, India.


This is the first report of crystallographic data on a disintegrin molecule from any source. The heterodimeric disintegrin with a molecular weight of 14 kDa from Echis carinatus venom is a potent antagonist of alpha4 integrins. The intact disintegrin, containing two subunits A and B, was isolated and purified using affinity and ion-exchange columns. It has been crystallized using 1.6 M ammonium sulfate as a precipitating agent. The crystals grew to dimensions of 0.25 x 0.20 x 0.20 mm and diffracted to 2.5 A resolution. The crystals belong to space group I4(1)22, with unit-cell parameters a = b = 91.7, c = 55.1 A. Assuming a molecular weight of 14 kDa, a V(M) of 2.1 A(3) Da(-1) is obtained for one molecule of disintegrin in the asymmetric unit.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for International Union of Crystallography
    Loading ...
    Support Center