Drosophila melanogaster Rab3 bound to GMPPNP

PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER

Structures of Drosophila melanogaster Rab2 and Rab3 bound to GMPPNP.

GAMASGGDPKWQKDAADQNFDYMFKLLIIGNSSVGKTSFLFRYADDSFTSAFVSTVGIDFKVKTVFRHDKRVKLQIWDTA
GLERYRTITTAYYRGAMGFILMYDVTNEDSFNSVQDWVTQIKTYSWDNAQVILVGNKCDMEDQRVISFERGRQLADQLGV
EFFETSAKENVNVKAVFERLVDIICDKMSE

28% (v/v) PEG 200, 5% (w/v) PEG 3000; 100 mM MES buffer at pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 291K

The authors observe a covalently attached modification at Cys183. The latter modification remains enigmatic and hence has not been modeled in the crystal structure.

MASGGDPKWQKDAADQNFDYMFKLLIIGNSSVGKTSFLFRYADDSFTSAFVSTVGIDFKVKTVFRHDKRVKLQIWDTAGQ
ERYRTITTAYYRGAMGFILMYDVTNEDSFNSVQDWVTQIKTYSWDNAQVILVGNKCDMEDQRVISFERGRQLADQLGVEF
FETSAKENVNVKAVFERLVDIICDKMSE