[English] 日本語
Yorodumi
- PDB-8ops: Human terminal uridylyltransferase 7 (TUT7/ZCCHC6) bound with pre... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 8ops
TitleHuman terminal uridylyltransferase 7 (TUT7/ZCCHC6) bound with pre-let7g miRNA and Lin28A - complex 1
Components
  • Protein lin-28 homolog A
  • RNA (71-MER) Let7g
  • Terminal uridylyltransferase 7
KeywordsRNA / Polymerase / uridylation / RNA maturation and turnover control
Function / homology
Function and homology information


negative regulation of glial cell differentiation / positive regulation of cell proliferation involved in kidney development / negative regulation of pre-miRNA processing / polyuridylation-dependent mRNA catabolic process / transposable element silencing by mRNA destabilization / RNA 3'-end processing / uridylyltransferase activity / miRNA catabolic process / protein-RNA adaptor activity / RNA 3' uridylation ...negative regulation of glial cell differentiation / positive regulation of cell proliferation involved in kidney development / negative regulation of pre-miRNA processing / polyuridylation-dependent mRNA catabolic process / transposable element silencing by mRNA destabilization / RNA 3'-end processing / uridylyltransferase activity / miRNA catabolic process / protein-RNA adaptor activity / RNA 3' uridylation / RNA uridylyltransferase / pre-miRNA binding / RNA uridylyltransferase activity / Transcriptional regulation of pluripotent stem cells / Z-decay: degradation of maternal mRNAs by zygotically expressed factors / miRNA metabolic process / Deadenylation of mRNA / pre-miRNA processing / positive regulation of cytoplasmic translation / sequence-specific mRNA binding / oocyte maturation / miRNA binding / stem cell population maintenance / Zygotic genome activation (ZGA) / germ cell development / positive regulation of TOR signaling / rough endoplasmic reticulum / translation initiation factor binding / positive regulation of neuron differentiation / stem cell differentiation / cellular response to glucose stimulus / P-body / cytoplasmic stress granule / G-quadruplex RNA binding / negative regulation of translation / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / mRNA binding / nucleolus / RNA binding / zinc ion binding / nucleoplasm / nucleus / cytosol / cytoplasm
Similarity search - Function
Unstructured region 4 on terminal uridylyltransferase 7 / TUTase nucleotidyltransferase domain / : / : / Lin-28A-like, second zinc knuckle / TUTase nucleotidyltransferase domain / PAP/25A-associated / Cid1 family poly A polymerase / Poly(A) RNA polymerase, mitochondrial-like, central palm domain / Cold-shock protein, DNA-binding ...Unstructured region 4 on terminal uridylyltransferase 7 / TUTase nucleotidyltransferase domain / : / : / Lin-28A-like, second zinc knuckle / TUTase nucleotidyltransferase domain / PAP/25A-associated / Cid1 family poly A polymerase / Poly(A) RNA polymerase, mitochondrial-like, central palm domain / Cold-shock protein, DNA-binding / 'Cold-shock' DNA-binding domain / Cold-shock (CSD) domain profile. / Cold shock domain / Cold shock protein domain / Matrin/U1-C-like, C2H2-type zinc finger / U1-like zinc finger / Zinc finger C2H2 type domain signature. / Nucleotidyltransferase superfamily / zinc finger / Zinc knuckle / Zinc finger, CCHC-type superfamily / Zinc finger, CCHC-type / Zinc finger CCHC-type profile. / Nucleic acid-binding, OB-fold
Similarity search - Domain/homology
RNA / RNA (> 10) / Terminal uridylyltransferase 7 / Protein lin-28 homolog A
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.82 Å
AuthorsYi, G. / Ye, M. / Gilbert, R.J.
Funding support United Kingdom, 1items
OrganizationGrant numberCountry
Wellcome Trust United Kingdom
CitationJournal: Nat Struct Mol Biol / Year: 2024
Title: Structural basis for activity switching in polymerases determining the fate of let-7 pre-miRNAs.
Authors: Gangshun Yi / Mingda Ye / Loic Carrique / Afaf El-Sagheer / Tom Brown / Chris J Norbury / Peijun Zhang / Robert J C Gilbert /
Abstract: Tumor-suppressor let-7 pre-microRNAs (miRNAs) are regulated by terminal uridylyltransferases TUT7 and TUT4 that either promote let-7 maturation by adding a single uridine nucleotide to the pre-miRNA ...Tumor-suppressor let-7 pre-microRNAs (miRNAs) are regulated by terminal uridylyltransferases TUT7 and TUT4 that either promote let-7 maturation by adding a single uridine nucleotide to the pre-miRNA 3' end or mark them for degradation by the addition of multiple uridines. Oligo-uridylation is increased in cells by enhanced TUT7/4 expression and especially by the RNA-binding pluripotency factor LIN28A. Using cryogenic electron microscopy, we captured high-resolution structures of active forms of TUT7 alone, of TUT7 plus pre-miRNA and of both TUT7 and TUT4 bound with pre-miRNA and LIN28A. Our structures reveal that pre-miRNAs engage the enzymes in fundamentally different ways depending on the presence of LIN28A, which clamps them onto the TUTs to enable processive 3' oligo-uridylation. This study reveals the molecular basis for mono- versus oligo-uridylation by TUT7/4, as determined by the presence of LIN28A, and thus their mechanism of action in the regulation of cell fate and in cancer.
History
DepositionApr 8, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 24, 2024Provider: repository / Type: Initial release
Revision 1.1Aug 7, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.pdbx_database_id_PubMed / _citation.title ..._citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _em_admin.last_update
Revision 1.2Sep 25, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _em_admin.last_update

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Terminal uridylyltransferase 7
B: Protein lin-28 homolog A
C: RNA (71-MER) Let7g
hetero molecules


Theoretical massNumber of molelcules
Total (without water)217,1974
Polymers217,1313
Non-polymers651
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

-
Components

#1: Protein Terminal uridylyltransferase 7 / TUTase 7 / Zinc finger CCHC domain-containing protein 6


Mass: 171493.766 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TUT7, HS2, KIAA1711, ZCCHC6 / Production host: Escherichia coli KRX (bacteria) / References: UniProt: Q5VYS8, RNA uridylyltransferase
#2: Protein Protein lin-28 homolog A / Lin-28A / Zinc finger CCHC domain-containing protein 1


Mass: 22778.975 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: LIN28A, CSDD1, LIN28, ZCCHC1 / Production host: Escherichia coli KRX (bacteria) / References: UniProt: Q9H9Z2
#3: RNA chain RNA (71-MER) Let7g


Mass: 22858.557 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human)
#4: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
Has ligand of interestN

-
Experimental details

-
Experiment

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

-
Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1Human terminal uridylyltransferase 7 (TUT7/ZCCHC6) bound with pre-let7g miRNA and Lin28A - complex 1COMPLEX#1-#30RECOMBINANT
2Terminal uridylyltransferase 7 and Protein lin-28 homolog ACOMPLEX#1-#21RECOMBINANT
3RNA (71-MER) Let7gCOMPLEX#31RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
22Homo sapiens (human)9606
33Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-IDStrain
22Escherichia coli KRX (bacteria)1452720KRX
33Synthetic construct (others)32630
Buffer solutionpH: 7.8
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: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

-
Processing

CTF correctionType: PHASE FLIPPING ONLY
3D reconstructionResolution: 3.82 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 183972 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0035273
ELECTRON MICROSCOPYf_angle_d0.5547485
ELECTRON MICROSCOPYf_dihedral_angle_d16.9641322
ELECTRON MICROSCOPYf_chiral_restr0.038908
ELECTRON MICROSCOPYf_plane_restr0.006694

+
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