>cd06137 DEDDh_RNase This group is composed of eukaryotic exoribonucleases that include PAN2, RNA exonuclease 1 (REX1 or Rex1p), REX3 (Rex3p), REX4 (or Rex4p), ISG20, and similar proteins. They are DEDDh-type DnaQ-like 3'-5' exonucleases containing three conserved sequence motifs termed ExoI, ExoII and ExoIII, with a specific Hx(4)D conserved pattern at ExoIII. These motifs are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis. PAN2 is the catalytic subunit of poly(A) nuclease (PAN), a Pab1p-dependent 3'-5' exoribonuclease which plays an important role in the posttranscriptional maturation of pre-mRNAs. REX proteins are required for the processing and maturation of many RNA species, and ISG20 is an interferon-induced antiviral exonuclease with a strong preference for single-stranded RNA.

Probab=99.01 E-value=4.6e-09 Score=77.01 Aligned_cols=150 Identities=19% Similarity=0.209 Sum_probs=99.6 Q ss_pred EEEECCCCCCCCCCCEEEEEEEEEECCCCEECCEEEEEEECCCCCCCCCHHHHHHHCCCHHHHHHCCC-----CHHHHH- Q ss_conf 99975278898772604899999983897280400226621788877857898985799889960799-----979999- Q gi|254780661|r 6 VIYDYETFGRDVALDRPAQFAGVRVDRQWEKIESTEVFFCKPADDYLPDPEAVFITGITPQKALRDGV-----VEAEFS- 79 (471) Q Consensus 6 v~~D~ETtG~~~~~~~iiq~~~i~~d~~~~~~~~~~~~~~~~~~~~~p~p~a~~v~git~~~~~~~~~-----~~~e~~- 79 (471) T Consensus 1 VAlDCEMv~~~~~~~el~rvs~Vd~-~~g~vl--~d~-~VkP~~--~V~Dy~T~~SGIt~~~l~~a~~~~~~~~~~~~a~ 74 (161) T cd06137 1 VALDCEMVGLADGDSEVVRISAVDV-LTGEVL--IDS-LVRPSV--RVTDWRTRFSGVTPADLEEAAKAGKTIFGWEAAR 74 (161) T ss_pred CEEEEEEECCCCCCCEEEEEEEEEC-CCCEEE--EEE-CCCCCC--CCCCCEEECCCCCHHHHHHHHHCCCCCCCHHHHH T ss_conf 9796452332299725899999972-799199--986-335984--3230143325799999854342153333199999 Q ss_pred HHHHHHHHCCCCEEEEEECHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHCCCCCCCCCCCCCC Q ss_conf 99999951179659995055789999999998507853213256887100158888655565321002444445443310 Q gi|254780661|r 80 RRIHQFFSVPNTCIIGYNNIRFDDYYSRNIFYRNFYDSYRWSWDNGNSRWDLLDVMRAIYAFSPDGIQWPSRDDGATSFK 159 (471) Q Consensus 80 ~~i~~~~~~~~~~~ig~N~~~FD~~~lr~~~~r~~~~~y~~~~~~~~~~~D~l~~~~~~~~~~p~~~~~~~~~~~~~~~k 159 (471) T Consensus 75 ~~l~~~i~-~~tIlVGH~-L~nDL~aL~~~------H~---------~viDTa~l~-------~~~~~~---~~~~~~~s 127 (161) T cd06137 75 AALWKFID-PDTILVGHS-LQNDLDALRMI------HT---------RVVDTAILT-------REAVKG---PLAKRQWS 127 (161) T ss_pred HHHHHHCC-CCCEEEECC-HHHHHHHHCCC------CC---------CEEECEEEC-------CHHCCC---CCCCCCHH T ss_conf 99997458-996798510-13108786277------98---------354320332-------001157---88888866 Q ss_pred HHHHHH-HHCCCC--C-CCCHHHHHHHHHHHHH Q ss_conf 898998-718876--4-3101333189999999 Q gi|254780661|r 160 LQDLAL-ANGIEH--V-NAHDAKADVYATLALV 188 (471) Q Consensus 160 L~~la~-~n~i~~--~-~aH~A~~D~~~t~~l~ 188 (471) T Consensus 128 Lk~La~~~L~~~IQ~g~~gHds~EDA~aam~L~ 160 (161) T cd06137 128 LRTLCRDFLGLKIQGGGEGHDSLEDALAAREVV 160 (161) T ss_pred HHHHHHHHHCHHHCCCCCCCCCHHHHHHHHHHH T ss_conf 999999982877528998849199999999985

HHsearch alignment for GI: 254780661 and conserved domain: cd06137