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- EMDB-30879: focused refinement map for the RBM48/ARMC7 region -

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Basic information

Entry
Database: EMDB / ID: EMD-30879
Titlefocused refinement map for the RBM48/ARMC7 region
Map datafocused refinement map for the RBM48/ARMC7 region
Sample
  • Complex: Structure of the Activated Human Minor Spliceosome (Bact Complex)
Function / homology
Function and homology information


regulation of postsynaptic density protein 95 clustering / RES complex / negative regulation of chemokine-mediated signaling pathway / snoRNA splicing / U11/U12 snRNP / U2 snRNP binding / post-mRNA release spliceosomal complex / U7 snRNA binding / histone pre-mRNA DCP binding / regulation of retinoic acid receptor signaling pathway ...regulation of postsynaptic density protein 95 clustering / RES complex / negative regulation of chemokine-mediated signaling pathway / snoRNA splicing / U11/U12 snRNP / U2 snRNP binding / post-mRNA release spliceosomal complex / U7 snRNA binding / histone pre-mRNA DCP binding / regulation of retinoic acid receptor signaling pathway / U7 snRNP / protein localization to microtubule / B-WICH complex / histone pre-mRNA 3'end processing complex / alternative mRNA splicing, via spliceosome / cis assembly of pre-catalytic spliceosome / regulation of vitamin D receptor signaling pathway / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / splicing factor binding / methylosome / protein methylation / U12-type spliceosomal complex / miRNA processing / 7-methylguanosine cap hypermethylation / nuclear retinoic acid receptor binding / U2-type catalytic step 1 spliceosome / pICln-Sm protein complex / U1 snRNP binding / RNA splicing, via transesterification reactions / Prp19 complex / blastocyst formation / spliceosomal tri-snRNP complex / small nuclear ribonucleoprotein complex / P granule / sno(s)RNA-containing ribonucleoprotein complex / SMN-Sm protein complex / mRNA 3'-end processing / : / mRNA cis splicing, via spliceosome / positive regulation of mRNA splicing, via spliceosome / U2-type spliceosomal complex / telomerase RNA binding / telomerase holoenzyme complex / U2-type precatalytic spliceosome / regulation of mRNA splicing, via spliceosome / C2H2 zinc finger domain binding / U2-type prespliceosome assembly / commitment complex / U2-type catalytic step 2 spliceosome / U4 snRNP / positive regulation by host of viral transcription / Transport of Mature mRNA derived from an Intron-Containing Transcript / positive regulation of vitamin D receptor signaling pathway / U2 snRNP / SAGA complex / Notch binding / nuclear vitamin D receptor binding / positive regulation of transcription by RNA polymerase III / RNA Polymerase II Transcription Termination / Basigin interactions / Regulation of gene expression in late stage (branching morphogenesis) pancreatic bud precursor cells / U1 snRNP / RUNX3 regulates NOTCH signaling / RHOBTB1 GTPase cycle / U2-type prespliceosome / NOTCH4 Intracellular Domain Regulates Transcription / pattern recognition receptor activity / K63-linked polyubiquitin modification-dependent protein binding / ubiquitin-ubiquitin ligase activity / WD40-repeat domain binding / NOTCH3 Intracellular Domain Regulates Transcription / positive regulation of neurogenesis / precatalytic spliceosome / nuclear androgen receptor binding / spliceosomal complex assembly / positive regulation of transcription by RNA polymerase I / Notch-HLH transcription pathway / mRNA Splicing - Minor Pathway / regulation of RNA splicing / Formation of paraxial mesoderm / positive regulation of transforming growth factor beta receptor signaling pathway / SMAD binding / antiviral innate immune response / protein localization to nucleus / spliceosomal tri-snRNP complex assembly / U5 snRNA binding / positive regulation of G1/S transition of mitotic cell cycle / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / U5 snRNP / retinoic acid receptor signaling pathway / localization / regulation of DNA repair / Cajal body / spliceosomal snRNP assembly / U2 snRNA binding / U6 snRNA binding / RNA processing / canonical NF-kappaB signal transduction
Similarity search - Function
RBM48, RNA recognition motif / RNA-binding protein 48 / Armadillo repeat-containing protein 7 / Sodium channel modifier 1, zinc-finger / Sodium channel modifier 1, acidic C-terminal domain / Sodium channel modifier 1 / Zinc-finger of sodium channel modifier 1 / Acidic C-terminal region of sodium channel modifier 1 SCNM1 / G-patch domain and KOW motifs-containing protein, KOW 1 / G-patch domain and KOW motifs-containing protein, KOW 2 ...RBM48, RNA recognition motif / RNA-binding protein 48 / Armadillo repeat-containing protein 7 / Sodium channel modifier 1, zinc-finger / Sodium channel modifier 1, acidic C-terminal domain / Sodium channel modifier 1 / Zinc-finger of sodium channel modifier 1 / Acidic C-terminal region of sodium channel modifier 1 SCNM1 / G-patch domain and KOW motifs-containing protein, KOW 1 / G-patch domain and KOW motifs-containing protein, KOW 2 / Peptidyl-prolyl cis-trans isomerase like 2, U-box domain / PDZ-binding protein, CRIPT / Microtubule-associated protein CRIPT / Spp2/MOS2, G-patch domain / Pre-mRNA-splicing factor CWC24-like / Pre-mRNA-splicing factor Spp2-like / G-patch domain / Ist3-like, RNA recognition motif / Bud13 / Pre-mRNA-splicing factor of RES complex / PWI domain superfamily / PWI domain / PWI domain profile. / SF3B6, RNA recognition motif / : / SF3B4, RNA recognition motif 2 / PWI domain / PWI, domain in splicing factors / SF3B4, RNA recognition motif 1 / Cyclophilin-type peptidyl-prolyl cis-trans isomerase, cyclophilin A-like / Splicing factor 3B, subunit 5 / mRNA splicing factor Cwf21 domain / cwf21 domain / Splicing factor 3B subunit 1 / Splicing factor 3B subunit 1 / Domain of unknown function DUF382 / Domain of unknown function (DUF382) / G-patch domain profile. / WD repeat Prp46/PLRG1-like / : / : / G-patch domain / glycine rich nucleic binding domain / SKI-interacting protein SKIP, SNW domain / PHF5-like / SKI-interacting protein, SKIP / SKIP/SNW domain / PHF5-like protein / PSP, proline-rich / PSP / Myb-like DNA-binding domain / proline-rich domain in spliceosome associated proteins / Pre-mRNA-splicing factor Cwf15/Cwc15 / HAT (Half-A-TPR) repeat / Cwf15/Cwc15 cell cycle control protein / Splicing factor 3B subunit 5/RDS3 complex subunit 10 / Splicing factor 3B subunit 10 (SF3b10) / Small ribonucleoprotein associated, SmB/SmN / Zinc finger C-x8-C-x5-C-x3-H type (and similar) / Splicing factor 3B subunit 1-like / Pre-mRNA splicing factor component Cdc5p/Cef1, C-terminal / pre-mRNA splicing factor component / Initiation factor eIF-4 gamma, MA3 / MA3 domain / MI domain profile. / Domain in DAP-5, eIF4G, MA-3 and other proteins. / Small nuclear ribonucleoprotein D1 / MIF4G domain / Spt5 C-terminal domain / Spt5 C-terminal nonapeptide repeat binding Spt4 / U-box domain profile. / Modified RING finger domain / Pre-mRNA-splicing factor Syf1-like / Brr2, N-terminal helicase PWI domain / : / N-terminal helicase PWI domain / Pre-mRNA-splicing helicase BRR2 plug domain / Middle domain of eukaryotic initiation factor 4G (eIF4G) / MIF4G-like, type 3 / U-box domain / Snu114, GTP-binding domain / Sec63 Brl domain / Zinc finger, CCCH-type superfamily / SAP domain / 116kDa U5 small nuclear ribonucleoprotein component, N-terminal / 116kDa U5 small nuclear ribonucleoprotein component, C-terminal / 116 kDa U5 small nuclear ribonucleoprotein component N-terminus / SAP motif profile. / Putative DNA-binding (bihelical) motif predicted to be involved in chromosomal organisation / SAP domain / : / Helicase associated domain (HA2), ratchet-like / zinc finger / DEAD-box helicase, OB fold / Oligonucleotide/oligosaccharide-binding (OB)-fold / Helicase-associated domain / Helicase associated domain (HA2), winged-helix / Helicase associated domain (HA2) Add an annotation / Small nuclear ribonucleoprotein Sm D3 / Sec63 domain
Similarity search - Domain/homology
E3 ubiquitin-protein ligase RNF113A / Pleiotropic regulator 1 / Pre-mRNA-splicing factor ATP-dependent RNA helicase DHX16 / Splicing factor 3B subunit 1 / U5 small nuclear ribonucleoprotein 200 kDa helicase / Small nuclear ribonucleoprotein-associated proteins B and B' / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein F / Small nuclear ribonucleoprotein G / Small nuclear ribonucleoprotein Sm D1 ...E3 ubiquitin-protein ligase RNF113A / Pleiotropic regulator 1 / Pre-mRNA-splicing factor ATP-dependent RNA helicase DHX16 / Splicing factor 3B subunit 1 / U5 small nuclear ribonucleoprotein 200 kDa helicase / Small nuclear ribonucleoprotein-associated proteins B and B' / 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 / RING-type E3 ubiquitin-protein ligase PPIL2 / Splicing factor 3B subunit 2 / SNW domain-containing protein 1 / 116 kDa U5 small nuclear ribonucleoprotein component / Splicing factor 3B subunit 3 / Splicing factor 3B subunit 4 / RNA-binding protein 48 / Pre-mRNA-processing-splicing factor 8 / Spliceosome-associated protein CWC27 homolog / PHD finger-like domain-containing protein 5A / Serine/arginine repetitive matrix protein 1 / Smad nuclear-interacting protein 1 / G-patch domain and KOW motifs-containing protein / U5 small nuclear ribonucleoprotein 40 kDa protein / Cell division cycle 5-like protein / BUD13 homolog / Sodium channel modifier 1 / Splicing factor 3B subunit 5 / Crooked neck-like protein 1 / Armadillo repeat-containing protein 7 / Pre-mRNA-splicing factor CWC22 homolog / Spliceosome-associated protein CWC15 homolog / Cysteine-rich PDZ-binding protein / Serine/arginine repetitive matrix protein 2 / RNA-binding motif protein, X-linked 2 / Splicing factor 3B subunit 6
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.24 Å
AuthorsBai R / Wan R
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)31930059 China
CitationJournal: Science / Year: 2021
Title: Structure of the activated human minor spliceosome.
Authors: Rui Bai / Ruixue Wan / Lin Wang / Kui Xu / Qiangfeng Zhang / Jianlin Lei / Yigong Shi /
Abstract: The minor spliceosome mediates splicing of the rare but essential U12-type precursor messenger RNA. Here, we report the atomic features of the activated human minor spliceosome determined by cryo- ...The minor spliceosome mediates splicing of the rare but essential U12-type precursor messenger RNA. Here, we report the atomic features of the activated human minor spliceosome determined by cryo-electron microscopy at 2.9-angstrom resolution. The 5' splice site and branch point sequence of the U12-type intron are recognized by the U6atac and U12 small nuclear RNAs (snRNAs), respectively. Five newly identified proteins stabilize the conformation of the catalytic center: The zinc finger protein SCNM1 functionally mimics the SF3a complex of the major spliceosome, the RBM48-ARMC7 complex binds the γ-monomethyl phosphate cap at the 5' end of U6atac snRNA, the U-box protein PPIL2 coordinates loop I of U5 snRNA and stabilizes U5 small nuclear ribonucleoprotein (snRNP), and CRIPT stabilizes U12 snRNP. Our study provides a framework for the mechanistic understanding of the function of the human minor spliceosome.
History
DepositionJan 15, 2021-
Header (metadata) releaseApr 7, 2021-
Map releaseApr 7, 2021-
UpdateOct 19, 2022-
Current statusOct 19, 2022Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.015
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.015
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_30879.png

Downloads & links

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Map

FileDownload / File: emd_30879.map.gz / Format: CCP4 / Size: 824 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationfocused refinement map for the RBM48/ARMC7 region
Voxel sizeX=Y=Z: 1.0742 Å
Density
Contour LevelBy AUTHOR: 0.015 / Movie #1: 0.015
Minimum - Maximum-0.047973044 - 0.094383195
Average (Standard dev.)-2.6802145e-05 (±0.0012629516)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions600600600
Spacing600600600
CellA=B=C: 644.52 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.07421.07421.0742
M x/y/z600600600
origin x/y/z0.0000.0000.000
length x/y/z644.520644.520644.520
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ400400400
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS600600600
D min/max/mean-0.0480.094-0.000

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Supplemental data

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Sample components

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Entire : Structure of the Activated Human Minor Spliceosome (Bact Complex)

EntireName: Structure of the Activated Human Minor Spliceosome (Bact Complex)
Components
  • Complex: Structure of the Activated Human Minor Spliceosome (Bact Complex)

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Supramolecule #1: Structure of the Activated Human Minor Spliceosome (Bact Complex)

SupramoleculeName: Structure of the Activated Human Minor Spliceosome (Bact Complex)
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#45
Source (natural)Organism: Homo sapiens (human) / Strain: HeLa S3 / Location in cell: Nucleus
Molecular weightExperimental: 1.7 MDa

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration0.2 mg/mL
BufferpH: 7.9
GridModel: Quantifoil / Material: GOLD / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Support film - Film thickness: 4.0 nm
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Specialist opticsEnergy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV
Sample stageCooling holder cryogen: NITROGEN
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 19.531 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.24 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 66297

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