3AF6 THE CRYSTAL STRUCTURE OF AN ARCHAEAL CPSF SUBUNIT, PH1404 FROM PYROCOCCUS HORIKOSHII COMPLEXED WITH RNA-ANALOG HYDROLASE/RNA, ARCHAEAL CPSF, BETA-CASP FAMILY, KH DOMAIN, RIBONUCLEASE, METALLO- BETA-LACTAMASE SUPERFAMILY, PYROCOCCUS HORIKOSHII, ARCHAEA, RNA- ANALOG, HYDROLASE-RNA COMPLEX