[English] 日本語
Yorodumi
- PDB-5u03: Cryo-EM structure of the human CTP synthase filament -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 5u03
TitleCryo-EM structure of the human CTP synthase filament
ComponentsCTP synthase 1
KeywordsLIGASE / PROTEIN FIBRIL / nucleotide metabolism / enzyme / filament
Function / homology
Function and homology information


cytoophidium / CTP synthase (glutamine hydrolysing) / CTP synthase activity / 'de novo' CTP biosynthetic process / pyrimidine nucleobase biosynthetic process / Interconversion of nucleotide di- and triphosphates / CTP biosynthetic process / nucleobase-containing compound metabolic process / glutamine metabolic process / B cell proliferation ...cytoophidium / CTP synthase (glutamine hydrolysing) / CTP synthase activity / 'de novo' CTP biosynthetic process / pyrimidine nucleobase biosynthetic process / Interconversion of nucleotide di- and triphosphates / CTP biosynthetic process / nucleobase-containing compound metabolic process / glutamine metabolic process / B cell proliferation / T cell proliferation / response to xenobiotic stimulus / ATP binding / membrane / identical protein binding / cytosol / cytoplasm
Similarity search - Function
CTP synthase / CTP synthase, N-terminal / CTP synthase GATase domain / CTP synthase N-terminus / Glutamine amidotransferase class-I / Glutamine amidotransferase / Glutamine amidotransferase type 1 domain profile. / Class I glutamine amidotransferase-like / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
ADENOSINE-5'-TRIPHOSPHATE / URIDINE 5'-TRIPHOSPHATE / CTP synthase 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 6.1 Å
AuthorsLynch, E.M. / Kollman, J.M.
CitationJournal: Nat Struct Mol Biol / Year: 2017
Title: Human CTP synthase filament structure reveals the active enzyme conformation.
Authors: Eric M Lynch / Derrick R Hicks / Matthew Shepherd / James A Endrizzi / Allison Maker / Jesse M Hansen / Rachael M Barry / Zemer Gitai / Enoch P Baldwin / Justin M Kollman /
Abstract: The universally conserved enzyme CTP synthase (CTPS) forms filaments in bacteria and eukaryotes. In bacteria, polymerization inhibits CTPS activity and is required for nucleotide homeostasis. Here we ...The universally conserved enzyme CTP synthase (CTPS) forms filaments in bacteria and eukaryotes. In bacteria, polymerization inhibits CTPS activity and is required for nucleotide homeostasis. Here we show that for human CTPS, polymerization increases catalytic activity. The cryo-EM structures of bacterial and human CTPS filaments differ considerably in overall architecture and in the conformation of the CTPS protomer, explaining the divergent consequences of polymerization on activity. The structure of human CTPS filament, the first structure of the full-length human enzyme, reveals a novel active conformation. The filament structures elucidate allosteric mechanisms of assembly and regulation that rely on a conserved conformational equilibrium. The findings may provide a mechanism for increasing human CTPS activity in response to metabolic state and challenge the assumption that metabolic filaments are generally storage forms of inactive enzymes. Allosteric regulation of CTPS polymerization by ligands likely represents a fundamental mechanism underlying assembly of other metabolic filaments.
History
DepositionNov 22, 2016Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 26, 2017Provider: repository / Type: Initial release
Revision 1.1May 17, 2017Group: Database references
Revision 1.2Jun 21, 2017Group: Database references / Category: citation
Item: _citation.country / _citation.journal_volume ..._citation.country / _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Jul 18, 2018Group: Data collection / Category: em_image_scans / em_software / Item: _em_software.name

-
Structure visualization

Movie
  • Biological unit as representative helical assembly
  • Imaged by Jmol
  • Download
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-8474
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: CTP synthase 1
B: CTP synthase 1
C: CTP synthase 1
D: CTP synthase 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)271,07412
Polymers267,1094
Non-polymers3,9658
Water0
1
A: CTP synthase 1
B: CTP synthase 1
C: CTP synthase 1
D: CTP synthase 1
hetero molecules

A: CTP synthase 1
B: CTP synthase 1
C: CTP synthase 1
D: CTP synthase 1
hetero molecules

A: CTP synthase 1
B: CTP synthase 1
C: CTP synthase 1
D: CTP synthase 1
hetero molecules

A: CTP synthase 1
B: CTP synthase 1
C: CTP synthase 1
D: CTP synthase 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,084,29848
Polymers1,068,43716
Non-polymers15,86132
Water0
TypeNameSymmetry operationNumber
helical symmetry operation4
2


  • Idetical with deposited unit in distinct coordinate
  • helical asymmetric unit
TypeNameSymmetry operationNumber
helical symmetry operation1
3


  • Idetical with deposited unit in distinct coordinate
  • helical asymmetric unit, std helical frame
TypeNameSymmetry operationNumber
transform to helical frame1
SymmetryHelical symmetry: (Circular symmetry: 1 / Dyad axis: no / N subunits divisor: 1 / Num. of operations: 4 / Rise per n subunits: 104.1 Å / Rotation per n subunits: 60.6 °)

-
Components

#1: Protein
CTP synthase 1 / / CTP synthetase 1 / UTP--ammonia ligase 1


Mass: 66777.297 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CTPS1, CTPS / Production host: Saccharomyces cerevisiae (brewer's yeast)
References: UniProt: P17812, CTP synthase (glutamine hydrolysing)
#2: Chemical
ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE / Adenosine triphosphate


Mass: 507.181 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Comment: ATP, energy-carrying molecule*YM
#3: Chemical
ChemComp-UTP / URIDINE 5'-TRIPHOSPHATE / Uridine triphosphate


Mass: 484.141 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C9H15N2O15P3 / Comment: UTP*YM

-
Experimental details

-
Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: FILAMENT / 3D reconstruction method: helical reconstruction

-
Sample preparation

ComponentName: human CTP synthase 1 filament / Type: COMPLEX
Details: hCTPS1 filaments assembled in the presence of UTP, ATP, and GTP
Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Saccharomyces cerevisiae (brewer's yeast) / Plasmid: pDO105-hCTPS1
Buffer solutionpH: 7.9
SpecimenConc.: 0.3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

-
Electron microscopy imaging

Experimental equipment
Model: Tecnai F20 / Image courtesy: FEI Company
MicroscopyModel: FEI TECNAI F20
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 45 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

-
Processing

EM software
IDNameCategory
13SPIDER3D reconstruction
14hsearch_lorentz3D reconstruction
15CTFFIND3D reconstruction
CTF correctionType: PHASE FLIPPING ONLY
Helical symmertyAngular rotation/subunit: 60.6 ° / Axial rise/subunit: 104.1 Å / Axial symmetry: C1
3D reconstructionResolution: 6.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 24880 / Symmetry type: HELICAL

+
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