Entry Database : EMDB / ID : EMD-67250 Downloads & linksTitle Human minor spliceosome branching-completed C complex (after step-I) Map dataoverall map of the human minor C complex Details SampleComplex : Human minor spliceosome branching-completed C complex (after step-I)RNA : x 5 typesProtein or peptide : x 37 typesProtein or peptide : x 5 typesLigand : x 7 types Details Keywords minor spliceosome / U12-dependent spliceosome / U12-type splicing / step-I spliceosome / SPLICING / branching / snRNP / U12 / U5 / U6atac / intron lariatFunction / homology Function and homology informationFunction Domain/homology Component
second spliceosomal transesterification activity / striated muscle dense body / exon-exon junction subcomplex mago-y14 / negative regulation of selenocysteine incorporation / cellular response to selenite ion / post-spliceosomal complex / exon-exon junction complex / regulation of nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / regulation of vitamin D receptor signaling pathway / pre-mRNA 3'-splice site binding ... second spliceosomal transesterification activity / striated muscle dense body / exon-exon junction subcomplex mago-y14 / negative regulation of selenocysteine incorporation / cellular response to selenite ion / post-spliceosomal complex / exon-exon junction complex / regulation of nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / regulation of vitamin D receptor signaling pathway / pre-mRNA 3'-splice site binding / selenocysteine insertion sequence binding / mRNA metabolic process / regulation of translation at postsynapse, modulating synaptic transmission / regulation of retinoic acid receptor signaling pathway / alternative mRNA splicing, via spliceosome / post-mRNA release spliceosomal complex / U2 snRNP binding / U7 snRNA binding / histone pre-mRNA DCP binding / generation of catalytic spliceosome for first transesterification step / U7 snRNP / 3'-5' RNA helicase activity / Z-decay: degradation of maternal mRNAs by zygotically expressed factors / cis assembly of pre-catalytic spliceosome / histone pre-mRNA 3'end processing complex / nuclear histone mRNA catabolic process / embryonic cranial skeleton morphogenesis / SLBP independent Processing of Histone Pre-mRNAs / regulation of mRNA processing / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / Deadenylation of mRNA / negative regulation of excitatory postsynaptic potential / embryonic brain development / poly(A) binding / 7-methylguanosine cap hypermethylation / U12-type spliceosomal complex / positive regulation of mRNA splicing, via spliceosome / nuclear retinoic acid receptor binding / U1 snRNP binding / C2H2 zinc finger domain binding / pICln-Sm protein complex / U2-type catalytic step 1 spliceosome / methylosome / regulation of mRNA splicing, via spliceosome / RNA splicing, via transesterification reactions / mRNA 3'-end processing / sno(s)RNA-containing ribonucleoprotein complex / small nuclear ribonucleoprotein complex / M-decay: degradation of maternal mRNAs by maternally stored factors / SMN-Sm protein complex / spliceosomal tri-snRNP complex / positive regulation of vitamin D receptor signaling pathway / commitment complex / P granule / U4 snRNP / snRNP binding / host-mediated activation of viral transcription / U2-type precatalytic spliceosome / mRNA cis splicing, via spliceosome / Regulation of gene expression in late stage (branching morphogenesis) pancreatic bud precursor cells / U2-type prespliceosome assembly / RUNX3 regulates NOTCH signaling / U2-type catalytic step 2 spliceosome / Notch binding / U2-type spliceosomal complex / nuclear vitamin D receptor binding / telomerase holoenzyme complex / Transport of Mature mRNA derived from an Intron-Containing Transcript / NOTCH4 Intracellular Domain Regulates Transcription / telomerase RNA binding / exploration behavior / positive regulation of neurogenesis / U1 snRNP / U2 snRNP / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / RNA Polymerase II Transcription Termination / NOTCH3 Intracellular Domain Regulates Transcription / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / protein methylation / mRNA stabilization / U2-type prespliceosome / muscle organ development / protein peptidyl-prolyl isomerization / K63-linked polyubiquitin modification-dependent protein binding / nuclear androgen receptor binding / cyclosporin A binding / generation of catalytic spliceosome for second transesterification step / precatalytic spliceosome / ubiquitin-ubiquitin ligase activity / Notch-HLH transcription pathway / Formation of paraxial mesoderm / regulation of alternative mRNA splicing, via spliceosome / positive regulation of transforming growth factor beta receptor signaling pathway / WD40-repeat domain binding / negative regulation of DNA damage response, signal transduction by p53 class mediator / mRNA 3'-splice site recognition / SMAD binding / mRNA Splicing - Minor Pathway / spliceosomal complex assembly / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator Similarity search - Function Multiple myeloma tumor-associated protein 2-like, N-terminal / Multiple myeloma tumor-associated protein 2-like / Multiple myeloma tumor-associated / RBM48, RNA recognition motif / RNA-binding protein 48 / Armadillo repeat-containing protein 7 / : / : / RNA-binding protein 48 helical domain / Protein FRG1 ... Multiple myeloma tumor-associated protein 2-like, N-terminal / Multiple myeloma tumor-associated protein 2-like / Multiple myeloma tumor-associated / RBM48, RNA recognition motif / RNA-binding protein 48 / Armadillo repeat-containing protein 7 / : / : / RNA-binding protein 48 helical domain / Protein FRG1 / FRG1-like domain / CBF1-interacting co-repressor CIR, N-terminal domain / Pre-mRNA splicing factor / : / N-terminal domain of CBF1 interacting co-repressor CIR / Pre-mRNA splicing factor / N-terminal domain of CBF1 interacting co-repressor CIR / mRNA splicing factor Cwf18-like / Splicing factor Yju2 / cwf18 pre-mRNA splicing factor / Saf4/Yju2 protein / Saf4/Yju2 protein / Pre-mRNA-splicing factor SLU7 domain / Pre-mRNA-splicing factor SLU7 / Pre-mRNA splicing Prp18-interacting factor / Mago nashi protein / RNA-binding motif protein 8 / RBM8, RNA recognition motif / Mago nashi superfamily / Mago nashi protein / Actin-crosslinking / Pre-mRNA-splicing factor Isy1 / Pre-mRNA-splicing factor Isy1 superfamily / Isy1-like splicing family / : / Prp19 WD40 domain / : / : / Intron-binding protein aquarius, beta-barrel / Intron-binding protein aquarius insert domain / Peptidyl-prolyl cis-trans isomerase E / Peptidyl-prolyl cis-trans isomerase E, RNA recognition motif / Pre-mRNA-splicing factor SPF27 / Breast carcinoma amplified sequence 2 (BCAS2) / CWF11 family / Intron-binding protein aquarius, N-terminal / Intron-binding protein aquarius N-terminal / Helix hairpin bin domain superfamily / : / : / mRNA splicing factor Cwf21 domain / cwf21 domain / UPF1-type helicase core domain profile. / Pre-mRNA-splicing factor 19 / Pre-mRNA-processing factor 19 / : / Prp19/Pso4-like / : / Pre-mRNA-splicing factor SYF1 middle HAT repeat / Cyclophilin-type peptidyl-prolyl cis-trans isomerase, cyclophilin A-like / : / Pre-mRNA-splicing factor Syf1/CRNKL1 C-terminal HAT repeat / DNA2/NAM7 helicase, helicase domain / AAA domain / U-box domain / SKI-interacting protein SKIP, SNW domain / Pre-mRNA-splicing factor Cwf15/Cwc15 / SKI-interacting protein, SKIP / SKIP/SNW domain / Cwf15/Cwc15 cell cycle control protein / WD repeat Prp46/PLRG1-like / : / Initiation factor eIF-4 gamma, MA3 / Pre-mRNA splicing factor component Cdc5p/Cef1, C-terminal / : / : / : / MA3 domain / pre-mRNA splicing factor component / Pre-mRNA-splicing factor Syf1/CNRKL1 N-terminal HAT repeat / MI domain profile. / Domain in DAP-5, eIF4G, MA-3 and other proteins. / DNA2/NAM7-like helicase / : / MIF4G domain / Small ribonucleoprotein associated, SmB/SmN / Myb-like DNA-binding domain / Middle domain of eukaryotic initiation factor 4G (eIF4G) / MIF4G-like, type 3 / Spt5 C-terminal domain / Spt5 C-terminal nonapeptide repeat binding Spt4 / Small nuclear ribonucleoprotein D1 / Brr2, N-terminal helicase PWI domain / : / N-terminal helicase PWI domain / Pre-mRNA-splicing helicase BRR2 plug domain / : / Winged Helix-turn-helix domain / Sec63 Brl domain / U-box domain profile. Similarity search - Domain/homology Pleiotropic regulator 1 / RNA helicase aquarius / U5 small nuclear ribonucleoprotein 200 kDa helicase / Pre-mRNA-splicing factor SPF27 / Pre-mRNA-splicing factor SLU7 / Small nuclear ribonucleoprotein-associated proteins B and B' / Eukaryotic initiation factor 4A-III / Protein mago nashi homolog / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein F ... Pleiotropic regulator 1 / RNA helicase aquarius / U5 small nuclear ribonucleoprotein 200 kDa helicase / Pre-mRNA-splicing factor SPF27 / Pre-mRNA-splicing factor SLU7 / Small nuclear ribonucleoprotein-associated proteins B and B' / Eukaryotic initiation factor 4A-III / Protein mago nashi homolog / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein F / Small nuclear ribonucleoprotein G / Small nuclear ribonucleoprotein Sm D1 / Small nuclear ribonucleoprotein Sm D2 / Small nuclear ribonucleoprotein Sm D3 / SNW domain-containing protein 1 / Protein FRG1 / 116 kDa U5 small nuclear ribonucleoprotein component / RNA-binding protein 48 / Pre-mRNA-processing-splicing factor 8 / Coiled-coil domain-containing protein 12 / Pre-mRNA-splicing factor ATP-dependent RNA helicase PRP16 / Peptidylprolyl isomerase domain and WD repeat-containing protein 1 / U5 small nuclear ribonucleoprotein 40 kDa protein / Cell division cycle 5-like protein / Multiple myeloma tumor-associated protein 2 / Splicing factor YJU2 / Crooked neck-like protein 1 / Armadillo repeat-containing protein 7 / Pre-mRNA-splicing factor CWC22 homolog / Pre-mRNA-splicing factor SYF1 / WD repeat-containing protein 70 / Pre-mRNA-splicing factor CWC25 homolog / Spliceosome-associated protein CWC15 homolog / Pre-mRNA-splicing factor ISY1 homolog / Pre-mRNA-processing factor 19 / Peptidyl-prolyl cis-trans isomerase E / Serine/arginine repetitive matrix protein 2 / Peptidyl-prolyl cis-trans isomerase-like 1 / RNA-binding protein 8A Similarity search - ComponentBiological species Homo sapiens (human)Method single particle reconstruction / cryo EM / Resolution : 2.92 Å Details AuthorsBai R / Wan R Funding support China, 1 items Details Hide detailsOrganization Grant number Country National Natural Science Foundation of China (NSFC) 32171214 China
CitationJournal : Vita / Year : 2026Title : Molecular mechanism of the catalysis for U12-type splicing by the humanAuthors : Bai R / Guo H / Sun R / Zhu Y / Shi Y / Wan R History Deposition Nov 23, 2025 - Header (metadata) release Aug 12, 2026 - Map release Aug 12, 2026 - Update Aug 12, 2026 - Current status Aug 12, 2026 Processing site : PDBc / Status : Released
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