The crystal structure of nitrophorin 4 at 1.5 A resolution: transport of nitric oxide by a lipocalin-based heme protein.Andersen, J.F., Weichsel, A., Balfour, C.A., Champagne, D.E., Montfort, W.R.
(1998) Structure 6: 1315-1327
- PubMed: 9782054
- DOI: https://doi.org/10.1016/s0969-2126(98)00131-2
- Primary Citation of Related Structures:
- PubMed Abstract:
Nitrophorins are nitric oxide (NO) transport proteins from the saliva of blood-feeding insects, which act as vasodilators and anti-platelet agents. Rhodnius prolixus, an insect that carries the trypanosome that causes Chagas' disease, releases four NO-loaded nitrophorins during blood feeding, whereupon the ligand is released into the bloodstream or surrounding tissue of the host. Histamine, a signaling molecule released by the host upon tissue damage, is tightly bound by the nitrophorins; this may facilitate the release of NO and reduce inflammation in the host.
Department of Biochemistry University of Arizona Tucson, AZ 85721, USA.