The xenograft antigen in complex with GS-1-B4 lectin: crystallization and preliminary X-ray analysis.
The implantation of animal organs is one approach to overcoming the shortage of human donor organs for medical transplantation. Although readily available, non-primate tissues are subject to hyperacute rejection wherein human anti-Galalpha(1-3)Gal antibodies react with haptens present on the transplanted cells' surfaces. The understanding of this interaction on a molecular level will further the development of a strategy for the prevention of hyperacute rejection in xenotransplantation. The Galalpha(1-3)Gal hapten ('xenograft antigen') has been cocrystallized with the Gal-specific B(4) isolectin of Griffonia simplicifolia lectin-1. Crystals were analyzed by cryocrystallography and were found to diffract to moderately high resolution on a rotating-anode X-ray source. They belong to the P2(1)2(1)2 space group, with unit-cell parameters a = 111.0, b = 51.3, c = 76.9 A, and contain two molecules per asymmetric unit.
Tempel
W
W
Complex Carbohydrate Research Center, The University of Georgia, 220 Riverbend Road, Athens, GA 30602, USA.
Lipscomb
L A
LA
Rose
J P
JP
Woods
R J
RJ
D015478:Antigens, Heterophile / Q000737:chemistry; D003460:Crystallization; D018360:Crystallography, X-Ray; D007887:Fabaceae / Q000737:chemistry*; D037102:Lectins / Q000737:chemistry*; D008958:Models, Molecular; D037121:Plant Lectins; D011487:Protein Conformation
D015478:Antigens, Heterophile; C045475:Griffonia simplicifolia lectins; D037102:Lectins; D037121:Plant Lectins