mRNA cap binding complex binding / positive regulation of RNA binding / snRNA export from nucleus / cellular response to triglyceride / nuclear cap binding complex / cellular response to salt / histone mRNA metabolic process / RNA cap binding complex / mRNA metabolic process / RNA stabilization ...mRNA cap binding complex binding / positive regulation of RNA binding / snRNA export from nucleus / cellular response to triglyceride / nuclear cap binding complex / cellular response to salt / histone mRNA metabolic process / RNA cap binding complex / mRNA metabolic process / RNA stabilization / positive regulation of RNA export from nucleus / HuR (ELAVL1) binds and stabilizes mRNA / cap-dependent translational initiation / annulate lamellae / positive regulation of mRNA 3'-end processing / Processing of Intronless Pre-mRNAs / regulation of proteasomal ubiquitin-dependent protein catabolic process / RNA cap binding / snRNA binding / pre-miRNA export from nucleus / RNA nuclear export complex / snRNA import into nucleus / regulation of centrosome duplication / nuclear export signal receptor activity / regulation of mRNA processing / manchette / primary miRNA processing / miRNA-mediated post-transcriptional gene silencing / cellular response to mineralocorticoid stimulus / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / regulatory ncRNA-mediated post-transcriptional gene silencing / Regulation of cholesterol biosynthesis by SREBP (SREBF) / RNA 7-methylguanosine cap binding / Transport of the SLBP independent Mature mRNA / importin-alpha family protein binding / Transport of the SLBP Dependant Mature mRNA / alternative mRNA splicing, via spliceosome / regulation of protein export from nucleus / mRNA 3'-end processing / Transport of Mature mRNA Derived from an Intronless Transcript / positive regulation of mRNA splicing, via spliceosome / Rev-mediated nuclear export of HIV RNA / mRNA 3'-end processing / Nuclear import of Rev protein / protein localization to nucleolus / mRNA cis splicing, via spliceosome / NEP/NS2 Interacts with the Cellular Export Machinery / GTP metabolic process / Transport of Mature mRNA derived from an Intron-Containing Transcript / tRNA processing in the nucleus / Postmitotic nuclear pore complex (NPC) reformation / RNA catabolic process / RNA Polymerase II Transcription Termination / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / regulation of translational initiation / Abortive elongation of HIV-1 transcript in the absence of Tat / nucleocytoplasmic transport / FGFR2 alternative splicing / MicroRNA (miRNA) biogenesis / Signaling by FGFR2 IIIa TM / DNA metabolic process / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / Maturation of hRSV A proteins / spliceosomal complex assembly / mRNA Splicing - Minor Pathway / dynein intermediate chain binding / Processing of Capped Intron-Containing Pre-mRNA / mitotic sister chromatid segregation / RNA polymerase II transcribes snRNA genes / ribosomal large subunit export from nucleus / 7-methylguanosine mRNA capping / spermatid development / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Estrogen-dependent nuclear events downstream of ESR-membrane signaling / protein localization to nucleus / viral process / positive regulation of protein binding / sperm flagellum / toxic substance binding / nuclear pore / mRNA export from nucleus / Formation of HIV-1 elongation complex containing HIV-1 Tat / ribosomal subunit export from nucleus / Cajal body / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of HIV elongation complex in the absence of HIV Tat / Cyclin A/B1/B2 associated events during G2/M transition / Formation of RNA Pol II elongation complex / ribosomal small subunit export from nucleus / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / NPAS4 regulates expression of target genes / RNA Polymerase II Pre-transcription Events / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / centriole / Transcriptional and post-translational regulation of MITF-M expression and activity / mRNA Splicing - Major Pathway 類似検索 - 分子機能
Phosphorylated adapter RNA export protein / Phosphorylated adapter RNA export protein, RNA-binding domain / Phosphorylated adapter RNA export protein, RNA-binding domain superfamily / Phosphorylated adapter RNA export protein, RNA-binding domain / MIF4G-like, type 1 / MIF4G-like, type 2 / Nuclear cap-binding protein subunit 1 / MIF4G like / MIF4G like / Nuclear cap-binding protein subunit 2 ...Phosphorylated adapter RNA export protein / Phosphorylated adapter RNA export protein, RNA-binding domain / Phosphorylated adapter RNA export protein, RNA-binding domain superfamily / Phosphorylated adapter RNA export protein, RNA-binding domain / MIF4G-like, type 1 / MIF4G-like, type 2 / Nuclear cap-binding protein subunit 1 / MIF4G like / MIF4G like / Nuclear cap-binding protein subunit 2 / NCBP2, RNA recognition motif / Exportin-1, repeat 3 / Chromosome region maintenance repeat / Exportin-1, repeat 2 / Chromosome region maintenance or exportin repeat / CRM1 / Exportin repeat 2 / CRM1 / Exportin repeat 3 / CRM1 C terminal / Exportin-1, C-terminal / CRM1 C terminal / Exportin-1/5 / Exportin-1/Importin-beta-like / Exportin 1-like protein / MIF4G domain / Middle domain of eukaryotic initiation factor 4G (eIF4G) / MIF4G-like, type 3 / Ran GTPase / Small GTPase Ran-type domain profile. / Importin-beta N-terminal domain / Importin-beta N-terminal domain / Importin-beta N-terminal domain profile. / Importin-beta, N-terminal domain / Ran (Ras-related nuclear proteins) /TC4 subfamily of small GTPases / Rho (Ras homology) subfamily of Ras-like small GTPases / Ras subfamily of RAS small GTPases / Small GTPase / Ras family / RNA recognition motif / RNA recognition motif / Eukaryotic RNA Recognition Motif (RRM) profile. / RNA recognition motif domain / RNA-binding domain superfamily / Rab subfamily of small GTPases / Armadillo-like helical / Small GTP-binding protein domain / Armadillo-type fold / Nucleotide-binding alpha-beta plait domain superfamily / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
Exportin-1 / Nuclear cap-binding protein subunit 2 / GTP-binding nuclear protein Ran / Nuclear cap-binding protein subunit 1 / Phosphorylated adapter RNA export protein 類似検索 - 構成要素
ジャーナル: Nat Struct Mol Biol / 年: 2025 タイトル: Structural basis for the synergistic assembly of the snRNA export complex. 著者: Etienne Dubiez / William Garland / Maja Finderup Brask / Elisabetta Boeri Erba / Torben Heick Jensen / Jan Kadlec / Stephen Cusack / 要旨: The nuclear cap-binding complex (CBC) and its partner Arsenite-Resistance Protein 2 (ARS2) regulate the fate of RNA polymerase II transcripts via mutually exclusive interactions with RNA effectors. ...The nuclear cap-binding complex (CBC) and its partner Arsenite-Resistance Protein 2 (ARS2) regulate the fate of RNA polymerase II transcripts via mutually exclusive interactions with RNA effectors. One such effector is PHAX, which mediates the nuclear export of U-rich small nuclear RNAs (snRNAs). Here we present the cryo-electron microscopy structure of the human snRNA export complex comprising phosphorylated PHAX, CBC, CRM1-RanGTP and capped RNA. The central region of PHAX bridges CBC to the export factor CRM1-RanGTP, while also reinforcing cap dinucleotide binding. Additionally, PHAX interacts with a distant region of CRM1, facilitating contacts of the essential phosphorylated region of PHAX with the prominent basic surface of RanGTP. CBC engagement within the snRNA export complex is incompatible with its binding to other RNA effectors such as ALYREF or NCBP3. We demonstrate that snRNA export complex formation requires synergistic binding of all its components, which in turn displaces ARS2 from CBC and commits the complex for export.