Crystal structure of RtcA, the RNA 3'-terminal phosphate cyclase from Pyrococcus horikoshii.

Structure of RNA 3'-phosphate cyclase bound to substrate RNA.

MITIDGSYGEGGGQILRTSVALSTITGEPVRIVNIRANRPNPGLRPQHLHAILALKHLANAEVKGAHVGSRELVFIPKKL
EAKEISIDIGTAGSITLVLQALLPAMVFAREKVKFRITGGTDVSWSPPVDYLSNVTLFALEKIGIHGEIRVIRRGHYPKG
GGIVEGYVEPWNEKRELVAKEYSRIIKIEGISHATNLPSHVAERQARAAKDELLQLKVPIEIRTEISRSIGPGSGIVVWA
ETDCLRLGGDALGKKGKPAEIVGKEAAQELLDQLKPGHCVDKFLGDQLIPFLAFSGGVIWVSEITNHLKTNIWVVESFLG
RIFDVDGNVGEPGKIRVIRRV

20% PEG3350, 0.1 M trisodium citrate, pH 7, VAPOR DIFFUSION, HANGING DROP, temperature 298K