Entry Database : EMDB / ID : EMD-39339 Downloads & linksTitle Cryo-EM structure of the human DSS1-INTAC-PEC complex Map datalocal resolution filtered map using Relion Details Sample Details Keywords DSS1 / Integrator / INTAC / TRANSCRIPTIONFunction / homology Function and homology informationFunction Domain/homology Component
U2 snRNA 3'-end processing / NELF complex / meiotic spindle elongation / INTAC complex / Integration of energy metabolism / microfibril binding / NTRK3 as a dependence receptor / PP2A-mediated dephosphorylation of key metabolic factors / snRNA 3'-end processing / RNA polymerase II transcription initiation surveillance ... U2 snRNA 3'-end processing / NELF complex / meiotic spindle elongation / INTAC complex / Integration of energy metabolism / microfibril binding / NTRK3 as a dependence receptor / PP2A-mediated dephosphorylation of key metabolic factors / snRNA 3'-end processing / RNA polymerase II transcription initiation surveillance / MASTL Facilitates Mitotic Progression / mitotic sister chromatid separation / negative regulation of DNA-templated transcription, elongation / protein phosphatase type 2A complex / protein serine/threonine phosphatase complex / regulation of meiotic cell cycle process involved in oocyte maturation / peptidyl-threonine dephosphorylation / meiotic sister chromatid cohesion, centromeric / snRNA processing / peptidyl-serine dephosphorylation / histone H2AXS139 phosphatase activity / RNA polymerase II CTD heptapeptide repeat Y1 phosphatase activity / RNA polymerase II CTD heptapeptide repeat T4 phosphatase activity / RNA polymerase II CTD heptapeptide repeat S2 phosphatase activity / RNA polymerase II CTD heptapeptide repeat S7 phosphatase activity / MAP kinase serine/threonine phosphatase activity / myosin phosphatase activity / RNA Polymerase III Chain Elongation / FAR/SIN/STRIPAK complex / RNA Polymerase III Transcription Termination / : / Regulation of glycolysis by fructose 2,6-bisphosphate metabolism / DSIF complex / Inhibition of replication initiation of damaged DNA by RB1/E2F1 / female meiotic nuclear division / calmodulin-dependent protein phosphatase activity / RNA polymerase II CTD heptapeptide repeat S5 phosphatase activity / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / regulation of transcription by RNA polymerase I / regulation of transcription elongation by RNA polymerase II / protein phosphatase regulator activity / RPAP3/R2TP/prefoldin-like complex / GABA receptor binding / integrator complex / APC truncation mutants have impaired AXIN binding / AXIN missense mutants destabilize the destruction complex / Truncations of AMER1 destabilize the destruction complex / protein antigen binding / Formation of RNA Pol II elongation complex / Formation of the Early Elongation Complex / Transcriptional regulation by small RNAs / RNA Polymerase II Pre-transcription Events / TP53 Regulates Transcription of DNA Repair Genes / FGFR2 alternative splicing / RNA polymerase II transcribes snRNA genes / mRNA Capping / mRNA Splicing - Minor Pathway / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Elongation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA Pol II CTD phosphorylation and interaction with CE / Estrogen-dependent gene expression / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / mRNA Splicing - Major Pathway / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / ERKs are inactivated / Initiation of Nuclear Envelope (NE) Reformation / negative regulation of stem cell differentiation / Hydrolases; Acting on ester bonds; Endoribonucleases producing 3'-phosphomonoesters / Cytosolic sensors of pathogen-associated DNA / positive regulation of extrinsic apoptotic signaling pathway in absence of ligand / Beta-catenin phosphorylation cascade / Signaling by GSK3beta mutants / CTNNB1 S33 mutants aren't phosphorylated / CTNNB1 S37 mutants aren't phosphorylated / CTNNB1 S45 mutants aren't phosphorylated / CTNNB1 T41 mutants aren't phosphorylated / RNA Polymerase III Abortive And Retractive Initiation / proteasome regulatory particle, lid subcomplex / Co-stimulation by CD28 / regulation of growth / positive regulation of DNA-templated transcription, elongation / Disassembly of the destruction complex and recruitment of AXIN to the membrane / Regulation of ornithine decarboxylase (ODC) / Abortive elongation of HIV-1 transcript in the absence of Tat / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / Homologous DNA Pairing and Strand Exchange / Defective homologous recombination repair (HRR) due to BRCA1 loss of function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA1 binding function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA2/RAD51/RAD51C binding function / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) Similarity search - Function Domain of unknown function DUF3677 / Integrator complex subunit 2, metazoa / Integrator complex subunit 2 / Integrator complex subunit 7 / Integrator complex subunit 1 / : / : / : / : / : ... Domain of unknown function DUF3677 / Integrator complex subunit 2, metazoa / Integrator complex subunit 2 / Integrator complex subunit 7 / Integrator complex subunit 1 / : / : / : / : / : / : / Integrator complex subunit 1, RP2B-binding domain / Integrator complex subunit 2 / Integrator complex subunit 1, R3 domain / Integrator complex subunit 1, R4 domain / Integrator complex subunit 1, INTS2-binding domain / Integrator complex subunit 7, C-terminal domain / Integrator complex subunit 7, N-terminal / Integrator complex subunit 7 helical bundle / INTS6 beta-barrel domain / INTS6/SAGE1/DDX26B/CT45, C-terminal / : / INTS6/SAGE1/DDX26B/CT45 C-terminus / Integrator complex subunit 5, C-terminal / Integrator complex subunit 5, N-terminal / Integrator complex subunit 8 / Integrator complex subunit 5 / Integrator complex subunit 5 N-terminus / Integrator complex subunit 5 C-terminus / Cofactor of BRCA1 / : / Cofactor of BRCA1 (COBRA1) / INTS4 8 helical bundle domain / Integrator subunit 4 family C-terminal Ig-like domain / : / : / NELF-A N-terminal domain / TH1 protein / TH1 protein / Sister chromatid cohesion protein PDS5 protein / Integrator complex subunit 9 / Hepatitis delta antigen (HDAg) domain / : / Integrator IntS9, C-terminal domain / Hepatitis delta antigen (HDAg) domain profile. / Integrator complex subunit 11, MBL-fold / : / Integrator IntS11, C-terminal domain / Metallo-beta-lactamase superfamily domain / : / : / : / Beta-Casp domain / Beta-Casp domain / Beta-Casp domain / Spt5, KOW domain repeat 6 / Transcription elongation factor SPT5, seventh KOW domain / Transcription elongation factor SPT5, sixth KOW domain / Zn-dependent metallo-hydrolase, RNA specificity domain / Zn-dependent metallo-hydrolase RNA specificity domain / Transcription initiation Spt4 / Spt4 superfamily / Spt4/RpoE2 zinc finger / Spt4/RpoE2 zinc finger / Spt4/RpoE2 zinc finger / Transcription elongation factor SPT5, second KOW domain / Transcription elongation factor SPT5, fifth KOW domain / Transcription elongation factor SPT5, KOWx domain / Transcription elongation factor SPT5, KOW1 domain / Transcription elongation factor SPT5, fourth KOW domain / HEAT repeat / Transcription elongation factor Spt5, eukaryote / Spt5 transcription elongation factor, N-terminal / Spt5, KOW domain repeat 2 / Spt5, KOW domain repeat 3 / Spt5, KOW domain repeat 5 / Spt5 transcription elongation factor, acidic N-terminal / NGN domain, eukaryotic / Spt5, KOW domain repeat 1 / Spt5, KOW domain repeat 4 / HEAT repeat / Spt5 C-terminal domain / Spt5 C-terminal nonapeptide repeat binding Spt4 / NGN domain / Transcription elongation factor SPT5 / Early transcription elongation factor of RNA pol II, NGN section / : / PPP2R1A-like HEAT repeat / Serine/threonine specific protein phosphatases signature. / Protein phosphatase 2A homologues, catalytic domain. / DSS1/SEM1 / DSS1/SEM1 family / DSS1_SEM1 / Serine/threonine-specific protein phosphatase/bis(5-nucleosyl)-tetraphosphatase / HEAT repeat profile. / HEAT, type 2 / von Willebrand factor type A domain / HEAT repeats / NusG, N-terminal / In Spt5p, this domain may confer affinity for Spt4p. It possesses a RNP-like fold. Similarity search - Domain/homology DNA-directed RNA polymerase subunit beta / Transcription elongation factor SPT5 / DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / DNA-directed RNA polymerase II subunit RPB1 / Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform / DNA-directed RNA polymerase II subunit RPB2 / DNA-directed RNA polymerase II subunit RPB9 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 ... DNA-directed RNA polymerase subunit beta / Transcription elongation factor SPT5 / DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / DNA-directed RNA polymerase II subunit RPB1 / Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform / DNA-directed RNA polymerase II subunit RPB2 / DNA-directed RNA polymerase II subunit RPB9 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / 26S proteasome complex subunit SEM1 / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerase II subunit RPB7 / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / Transcription elongation factor SPT4 / Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform / Integrator complex subunit 11 / Integrator complex subunit 5 / Integrator complex subunit 8 / Negative elongation factor C/D / Integrator complex subunit 1 / Negative elongation factor B / Integrator complex subunit 4 / Integrator complex subunit 2 / Negative elongation factor A / Integrator complex subunit 9 / Integrator complex subunit 7 / Integrator complex subunit 6 Similarity search - ComponentBiological species Homo sapiens (human)Method single particle reconstruction / cryo EM / Resolution : 4.6 Å Details AuthorsZheng H / Xu Y / Cheng J Funding support 1 items Details Hide detailsOrganization Grant number Country Not funded
CitationJournal : To Be Published Title : Stabilization of Integrator/INTAC by the small but versatile DSS1 protein.Authors : Xu C / Zhou Q / Zheng H / Song A / Zhao W / Xiong Y / Huang Z / Xu Y / Cheng J / Chen FX History Deposition Mar 1, 2024 - Header (metadata) release Mar 5, 2025 - Map release Mar 5, 2025 - Update Jun 18, 2025 - Current status Jun 18, 2025 Processing site : PDBj / Status : Released
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