>pfam01138 RNase_PH 3' exoribonuclease family, domain 1. This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of the domain. PNPase is involved in mRNA degradation in a 3'-5' direction. The exosome is a 3'-5' exoribonuclease complex that is required for 3' processing of the 5.8S rRNA. Three of its five protein components contain a copy of this domain. A hypothetical protein from S. pombe appears to belong to an uncharacterized subfamily. This subfamily is found in both eukaryotes and archaebacteria.

Probab=99.63 E-value=6.5e-15 Score=139.97 Aligned_cols=123 Identities=42% Similarity=0.632 Sum_probs=104.2 Q ss_pred CEEEEEEECEECCCCCCEEEEEECCCEEEEEEEECCCCCCCCCCC--CCEEEEECCCCCCCCCCCCCCCCCCCCCHHHHH Q ss_conf 989999914004546728999978948999997278888777735--406866523201336788873578988714531 Q gi|254780784|r 13 GRPLKLETGRIARQSDGAVLATYGETVVLATVVYDRSLKDGQDFF--PLTVNYQERTYAVGKIPGGYLRRESRPTENEIL 90 (699) Q Consensus 13 gr~i~~ETGklArqA~GsV~v~~G~T~VLaTv~~~~~~~~~~dFf--PLtVdY~Ek~yAaGkIPGgF~kREgrpsd~EiL 90 (699) T Consensus 2 ~R~i~~~~g-v~~~a~GSa~v~~G~T~Via~V~~p~~~~~~~~~~~~~l~v~v~~~p~a~~~~~------~~~~~~~~~~ 74 (128) T pfam01138 2 LRPIEIETG-VLSQADGSALVELGDTKVLATVTGPIEPPNERDFFPGELTVEYEEKPFASGERP------EGRPSEREIE 74 (128) T ss_pred CCCEEEEEC-CCCCCCEEEEEEECCEEEEEEEECCCCCCCCCCCCCCEEEEEEEECCCCCCCCC------CCCCCHHHHH T ss_conf 731899969-779988789999899799999970543555567888569999867574355334------6863166899 Q ss_pred HHHHHHCCCCCCCCCC--CCCCEEEEEEEEECCCCCCHHHHHHHHHHHHHHHCCCC Q ss_conf 1112321267767468--86883789999821888877899999999998732688 Q gi|254780784|r 91 ISRMIDRSIRPLFSKC--YKNETQVIINVMQHDLESSPHVVSMVAASAALMLSGLP 144 (699) Q Consensus 91 ~sRlIDR~lRPLFPkg--f~~evQIv~~VLS~D~~~dpdvlAi~aASaAL~ISdIP 144 (699) T Consensus 75 l~~~l~~~l~~~~~~~~~~~~~I~i~v~vl~~dG~--~~~a~~~A~~~AL~dagiP 128 (128) T pfam01138 75 LSRLIDRALRPSFPLEGYPRWEIRIDITVLSDDGS--LLDAAINAASLALADAGIP 128 (128) T ss_pred HHHHHHHHHHHHCCCCCCCCEEEEEEEEEECCCCC--HHHHHHHHHHHHHHHCCCC T ss_conf 99999999886456044785699999999957999--8999999999999865999

HHsearch alignment for GI: 254780784 and conserved domain: pfam01138