Crystal structure of nitrophorin 2 ferrous aqua complex

Crystal structures, ligand induced conformational change and heme deformation in complexes of nitrophorin 2, a nitric oxide transport protein from rhodnius prolixus

MDCSTNISPKQGLDKAKYFSGKWYVTHFLDKDPQVTDQYCSSFTPRESDGTVKEALYHYNANKKTSFYNIGEGKLESSGL
QYTAKYKTVDKKKAVLKEADEKNSYTLTVLEADDSSALVHICLREGSKDLGDLYTVLTHQKDAEPSAKVKSAVTQAGLQL
SQFVGTKDLGCQYDDQFTSL

sodium citrate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

The same ferrous complex, another crystal form

Isomorphous structure of the ferric aqua complex

HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS

beta barrel, lipocalin, ferrous heme, TRANSPORT PROTEIN