[English] 日本語
Yorodumi
- PDB-9asq: Human Drosha, DGCR8 and SRSF3 in complex with Pri-let-7f1 -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 9asq
TitleHuman Drosha, DGCR8 and SRSF3 in complex with Pri-let-7f1
Components
  • Isoform 4 of Drosha
  • Microprocessor complex subunit DGCR8
  • Pri-let-7f1
  • Serine/arginine-rich splicing factor 3
KeywordsRNA BINDING PROTEIN/RNA / RNAi / RNA BINDING PROTEIN / RNA BINDING PROTEIN-RNA complex
Function / homology
Function and homology information


protein-RNA sequence-specific adaptor activity / positive regulation of pre-miRNA processing / microprocessor complex / regulation of miRNA metabolic process / protein-RNA adaptor activity / DEAD/H-box RNA helicase binding / primary miRNA binding / ribonuclease III / Transcriptional Regulation by MECP2 / regulation of regulatory T cell differentiation ...protein-RNA sequence-specific adaptor activity / positive regulation of pre-miRNA processing / microprocessor complex / regulation of miRNA metabolic process / protein-RNA adaptor activity / DEAD/H-box RNA helicase binding / primary miRNA binding / ribonuclease III / Transcriptional Regulation by MECP2 / regulation of regulatory T cell differentiation / primary miRNA processing / miRNA metabolic process / regulation of stem cell proliferation / ribonuclease III activity / pre-miRNA processing / mRNA 3'-end processing / regulation of mRNA splicing, via spliceosome / sequence-specific mRNA binding / mRNA cis splicing, via spliceosome / Transport of Mature mRNA derived from an Intron-Containing Transcript / RNA Polymerase II Transcription Termination / MicroRNA (miRNA) biogenesis / SMAD binding / R-SMAD binding / Processing of Capped Intron-Containing Pre-mRNA / mRNA export from nucleus / phospholipase binding / mRNA Splicing - Major Pathway / cellular response to leukemia inhibitory factor / lipopolysaccharide binding / rRNA processing / double-stranded RNA binding / site of double-strand break / regulation of inflammatory response / protein-macromolecule adaptor activity / defense response to Gram-negative bacterium / defense response to Gram-positive bacterium / postsynaptic density / nuclear speck / nuclear body / mRNA binding / heme binding / DNA damage response / positive regulation of gene expression / nucleolus / glutamatergic synapse / protein homodimerization activity / RNA binding / nucleoplasm / metal ion binding / identical protein binding / nucleus / cytoplasm / cytosol
Similarity search - Function
: / RNase III, double-stranded RNA binding domain, animal / Microprocessor complex subunit DGCR8 / Ribonuclease-III-like / Ribonuclease III / Ribonuclease III family signature. / Ribonuclease III domain / Ribonuclease III family domain profile. / Ribonuclease III family / Ribonuclease III domain ...: / RNase III, double-stranded RNA binding domain, animal / Microprocessor complex subunit DGCR8 / Ribonuclease-III-like / Ribonuclease III / Ribonuclease III family signature. / Ribonuclease III domain / Ribonuclease III family domain profile. / Ribonuclease III family / Ribonuclease III domain / Double-stranded RNA binding motif / Double-stranded RNA binding motif / Ribonuclease III, endonuclease domain superfamily / Double stranded RNA-binding domain (dsRBD) profile. / Double-stranded RNA-binding domain / WW domain superfamily / WW/rsp5/WWP domain profile. / Domain with 2 conserved Trp (W) residues / WW domain / RNA recognition motif / RNA recognition motif / Eukaryotic RNA Recognition Motif (RRM) profile. / RNA recognition motif domain / RNA-binding domain superfamily / Nucleotide-binding alpha-beta plait domain superfamily
Similarity search - Domain/homology
: / RNA / RNA (> 10) / RNA (> 100) / Serine/arginine-rich splicing factor 3 / Microprocessor complex subunit DGCR8 / Ribonuclease 3
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å
AuthorsGarg, A. / Joshua-Tor, L.
Funding support United States, 2items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI) United States
National Institutes of Health/National Cancer Institute (NIH/NCI)R01 GM114147 United States
CitationJournal: Mol Cell / Year: 2024
Title: The structural landscape of Microprocessor-mediated processing of pri-let-7 miRNAs.
Authors: Ankur Garg / Renfu Shang / Todor Cvetanovic / Eric C Lai / Leemor Joshua-Tor /
Abstract: MicroRNA (miRNA) biogenesis is initiated upon cleavage of a primary miRNA (pri-miRNA) hairpin by the Microprocessor (MP), composed of the Drosha RNase III enzyme and its partner DGCR8. Multiple pri- ...MicroRNA (miRNA) biogenesis is initiated upon cleavage of a primary miRNA (pri-miRNA) hairpin by the Microprocessor (MP), composed of the Drosha RNase III enzyme and its partner DGCR8. Multiple pri-miRNA sequence motifs affect MP recognition, fidelity, and efficiency. Here, we performed cryoelectron microscopy (cryo-EM) and biochemical studies of several let-7 family pri-miRNAs in complex with human MP. We show that MP has the structural plasticity to accommodate a range of pri-miRNAs. These structures revealed key features of the 5' UG sequence motif, more comprehensively represented as the "flipped U with paired N" (fUN) motif. Our analysis explains how cleavage of class-II pri-let-7 members harboring a bulged nucleotide generates a non-canonical precursor with a 1-nt 3' overhang. Finally, the MP-SRSF3-pri-let-7f1 structure reveals how SRSF3 contributes to MP fidelity by interacting with the CNNC motif and Drosha's Piwi/Argonaute/Zwille (PAZ)-like domain. Overall, this study sheds light on the mechanisms for flexible recognition, accurate cleavage, and regulated processing of different pri-miRNAs by MP.
History
DepositionFeb 26, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 4, 2024Provider: repository / Type: Initial release
Revision 1.1Dec 11, 2024Group: Data collection / Database references / Structure summary
Category: citation / citation_author ...citation / citation_author / em_admin / pdbx_entry_details
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _em_admin.last_update / _pdbx_entry_details.has_protein_modification

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Isoform 4 of Drosha
B: Microprocessor complex subunit DGCR8
C: Microprocessor complex subunit DGCR8
E: Pri-let-7f1
H: Serine/arginine-rich splicing factor 3
hetero molecules


Theoretical massNumber of molelcules
Total (without water)391,4459
Polymers391,2345
Non-polymers2114
Water362
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

-
Components

-
Protein , 3 types, 4 molecules ABCH

#1: Protein Isoform 4 of Drosha / Ribonuclease 3 / Ribonuclease III / RNase III / p241


Mass: 155574.297 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DROSHA, RN3, RNASE3L, RNASEN / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q9NRR4, ribonuclease III
#2: Protein Microprocessor complex subunit DGCR8 / DiGeorge syndrome critical region 8


Mass: 86171.203 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DGCR8, C22orf12, DGCRK6, LP4941 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q8WYQ5
#4: Protein Serine/arginine-rich splicing factor 3 / Pre-mRNA-splicing factor SRP20 / Splicing factor / arginine/serine-rich 3


Mass: 19376.775 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SRSF3, SFRS3, SRP20 / Production host: Escherichia coli (E. coli) / References: UniProt: P84103

-
RNA chain , 1 types, 1 molecules E

#3: RNA chain Pri-let-7f1


Mass: 43940.816 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli) / References: GenBank: 15212042

-
Non-polymers , 3 types, 6 molecules

#5: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#6: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca / Feature type: SUBJECT OF INVESTIGATION
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Formula: H2O

-
Details

Has ligand of interestY
Has protein modificationN

-
Experimental details

-
Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

-
Sample preparation

ComponentName: RNAi_protein_f1_SR / Type: COMPLEX / Entity ID: #1-#4 / Source: MULTIPLE SOURCES
Molecular weightValue: 0.31 MDa / Experimental value: YES
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

-
Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 700 nm / Cs: 2.7 mm
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 76.6 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)
EM imaging opticsEnergyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV

-
Processing

EM softwareName: PHENIX / Version: 1.20_4459: / Category: model refinement
CTF correctionType: PHASE FLIPPING ONLY
3D reconstructionResolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 325534 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00312837
ELECTRON MICROSCOPYf_angle_d0.46517812
ELECTRON MICROSCOPYf_dihedral_angle_d11.8672569
ELECTRON MICROSCOPYf_chiral_restr0.0352013
ELECTRON MICROSCOPYf_plane_restr0.0031937

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more