Crystal structure of Cimex nitrophorin A21V mutant

Proximal Cysteine Protonation in Cimex Nitrophorin is key to efficient NO transport and release.

PPAQLSVHTVSWNSGHERVPTNLEELLGLNSGETPDVIAVAVQGFGFQTDKPQQGPACVKNFQSLLTSKGYTKLKNTITE
TMGLTVYCLEKHLDQNTLKNETIIVTVDDQKKSGGIVTSFTIYNKRFSFTTSRMSDEDVTSTNTKYAYDTRLDYSKKDDP
SDFLFWIGDLNVRVETNATHAKSLVDQNNIDGLMAFDQLKKAKEQKLFDGWTEPQVTFKPTYKFKPNTDEYDLSATPSWT
DRALYKSGTGKTIQPLSYNSLTNYKQTEHRPVLAKFRVTL

PEG 4000 , pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS

beta sandwich, ferric heme, thiolate heme ligand, Transport protein

PPAQLSVHTVSWNSGHERAPTNLEELLGLNSGETPDVIAVAVQGFGFQTDKPQQGPACVKNFQSLLTSKGYTKLKNTITE
TMGLTVYCLEKHLDQNTLKNETIIVTVDDQKKSGGIVTSFTIYNKRFSFTTSRMSDEDVTSTNTKYAYDTRLDYSKKDDP
SDFLFWIGDLNVRVETNATHAKSLVDQNNIDGLMAFDQLKKAKEQKLFDGWTEPQVTFKPTYKFKPNTDEYDLSATPSWT
DRALYKSGTGKTIQPLSYNSLTNYKQTEHRPVLAKFRVTL