mRNA cap binding complex binding / snRNA export from nucleus / nuclear cap binding complex / RNA cap binding complex / histone mRNA metabolic process / cellular response to triglyceride / cellular response to salt / positive regulation of RNA export from nucleus / mRNA metabolic process / HuR (ELAVL1) binds and stabilizes mRNA ...mRNA cap binding complex binding / snRNA export from nucleus / nuclear cap binding complex / RNA cap binding complex / histone mRNA metabolic process / cellular response to triglyceride / cellular response to salt / positive regulation of RNA export from nucleus / mRNA metabolic process / HuR (ELAVL1) binds and stabilizes mRNA / positive regulation of mRNA 3'-end processing / cap-dependent translational initiation / annulate lamellae / RNA stabilization / Processing of Intronless Pre-mRNAs / regulation of proteasomal ubiquitin-dependent protein catabolic process / RNA cap binding / RNA nuclear export complex / snRNA binding / pre-miRNA export from nucleus / snRNA import into nucleus / miRNA-mediated post-transcriptional gene silencing / nuclear export signal receptor activity / Nuclear RNA decay / cellular response to mineralocorticoid stimulus / primary miRNA processing / manchette / regulation of mRNA processing / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / regulation of centrosome duplication / Regulation of cholesterol biosynthesis by SREBP (SREBF) / regulatory ncRNA-mediated post-transcriptional gene silencing / Transport of the SLBP independent Mature mRNA / Transport of the SLBP Dependant Mature mRNA / alternative mRNA splicing, via spliceosome / RNA 7-methylguanosine cap binding / importin-alpha family protein binding / positive regulation of mRNA splicing, via spliceosome / mRNA 3'-end processing / regulation of protein export from nucleus / Transport of Mature mRNA Derived from an Intronless Transcript / Rev-mediated nuclear export of HIV RNA / Nuclear import of Rev protein / protein localization to nucleolus / mRNA cis splicing, via spliceosome / NEP/NS2 Interacts with the Cellular Export Machinery / Transport of Mature mRNA derived from an Intron-Containing Transcript / mRNA 3'-end processing / tRNA processing in the nucleus / GTP metabolic process / Postmitotic nuclear pore complex (NPC) reformation / RNA catabolic process / regulation of translational initiation / Abortive elongation of HIV-1 transcript in the absence of Tat / RNA Polymerase II Transcription Termination / FGFR2 alternative splicing / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / protein-containing complex localization / nucleocytoplasmic transport / 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 / mRNA Splicing - Minor Pathway / dynein intermediate chain binding / spliceosomal complex assembly / Maturation of hRSV A proteins / Processing of Capped Intron-Containing Pre-mRNA / mitotic sister chromatid segregation / RNA polymerase II transcribes snRNA genes / viral process / spermatid development / 7-methylguanosine mRNA capping / Estrogen-dependent nuclear events downstream of ESR-membrane signaling / ribosomal large subunit export from nucleus / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / nuclear pore / protein localization to nucleus / toxic substance binding / mRNA export from nucleus / sperm flagellum / Cajal body / Formation of HIV-1 elongation complex containing HIV-1 Tat / ribosomal subunit export from nucleus / Formation of HIV elongation complex in the absence of HIV Tat / Cyclin A/B1/B2 associated events during G2/M transition / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of RNA Pol II elongation complex / NPAS4 regulates expression of target genes / ribosomal small subunit export from nucleus / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / RNA Polymerase II Pre-transcription Events / mRNA Splicing - Major Pathway / Transcriptional and post-translational regulation of MITF-M expression and activity / protein export from nucleus / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation 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 / RNA recognition motif / Small GTPase / Ras family / 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.