Helicase; has ATPase activity. Component of the SKI complex which is thought to be involved in exosome-mediated RNA decay and associates with transcriptionally active genes in a manner dependent on PAF1 complex (PAF1C). Homo sapiens (taxid: 9606) EC: 3EC: .EC: 6EC: .EC: 4EC: .EC: -
Score = 60.8 bits (146), Expect = 3e-09, Method: Compositional matrix adjust.
Identities = 34/86 (39%), Positives = 47/86 (54%), Gaps = 12/86 (13%)
Query: 20 SEEADNLNFGLVQVVYEWAM------------QKEGIIVRCIQQLSELLRSIKDGAKIFG 67
+E D F ++ VVYEWA + EG +VR I L E+ R +K + I G
Sbjct: 1201 AEFLDRKRFAMMNVVYEWARGLSFKEIMEMSPEAEGTVVRVITWLDEICREVKTASIIIG 1260
Query: 68 ERDLPLKMDQAIQVIKRDIVFAPSLW 93
L +KM +A ++IKRDIVFA SL+
Sbjct: 1261 NSTLHMKMSRAQELIKRDIVFAASLY 1286
RNA helicase component of the SKI complex involved in 3'-mRNA degradation pathway. Represses dsRNA virus propagation by specifically blocking translation of viral mRNAs, perhaps recognizing the absence of CAP or poly(A). Essential for cell growth only in the presence of M1 replicon.
May be involved in pre-mRNA splicing. Associated with the RNA exosome complex and involved in the 3'processing of the 7S pre-RNA to the mature 5.8S rRNA.
May be involved in pre-mRNA splicing. Associated with the RNA exosome complex and involved in the 3'processing of the 7S pre-RNA to the mature 5.8S rRNA.
Score = 53.5 bits (127), Expect = 3e-07, Method: Compositional matrix adjust.
Identities = 30/85 (35%), Positives = 44/85 (51%), Gaps = 12/85 (14%)
Query: 21 EEADNLNFGLVQVVYEWAMQK------------EGIIVRCIQQLSELLRSIKDGAKIFGE 68
E ++ L++VVY WA EG ++R ++L EL+R + D AK+ G
Sbjct: 1032 EYVNSFKPSLMEVVYAWAHGASFAQICKMTDVYEGSLIRMFRRLEELIRQMVDAAKVIGN 1091
Query: 69 RDLPLKMDQAIQVIKRDIVFAPSLW 93
L KM+ I I RDIVF+ SL+
Sbjct: 1092 TSLQQKMEDTIACIHRDIVFSASLY 1116
Component of the TRAMP complex which has a poly(A) RNA polymerase activity and is involved in a post-transcriptional quality control mechanism limiting inappropriate expression of genetic information. Polyadenylation is required for the degradative activity of the exosome on several of its nuclear RNA substrates (By similarity). Required for heterochromatic gene silencing at centromeric repeats by either exosome- or RNAi-mediated degradation of heterochromatic transcripts.
ATP-dependent RNA helicase required for the 3'-end formation of 5.8S RNA. Cofactor for the exosome complex that unwinds secondary structure in pre-rRNA. Required for nucleocytoplasmic transport of mRNA. May serve as a chaperone which translocates or normalizes the structure of mRNAs in preparation for export. Component of the TRAMP complex which has a poly(A) RNA polymerase activity and is involved in a post-transcriptional quality control mechanism limiting inappropriate expression of genetic information. Polyadenylation is required for the degradative activity of the exosome on several of its nuclear RNA substrates.