0000000000555592
AUTHOR
Derek Stewart
Band Gap and Electronic Structure of an Epitaxial, SemiconductingCr0.80Al0.20Thin Film
This work was supported by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 and the Nanotechnology Network Project, MEXT, Japan. C. Papp and B. Balke thank the Humboldt foundation for support. Calculations were done at the Cornell Nanoscale Facility, part of the National Nanotechnology Infrastructure Network (NNIN) funded by NSF. HXPS experiments were approved at the NIMS Beamline Station (Proposal No. 2009A4906)
Sulphoevernan, a polyanionic polysaccharide, and the narcissus lectin potently inhibit human immunodeficiency virus infection by binding to viral envelope protein.
Sulphoevernan is a sulphated alpha-1----3, 1----4 polyglucan (Mr 20,000) with a helical structure. This compound effectively inhibits both human immunodeficiency virus type 1 (HIV-1) and type 2 infection of cells in vitro at concentrations around 0.5 micrograms/ml. Moreover, the compound completely inhibits HIV-1-induced syncytium formation at a concentration of 1 microgram/ml. Competition experiments with 35S-labelled sulphoevernan revealed that the mannose-specific lectin from Narcissus pseudonarcissus prevented binding of sulphoevernan to HIV-1, whereas the antibody OKT4A did not reduce the amount of sulphoevernan bound to MT-2 cells. These data indicate that the non-cytotoxic polymer su…