[English] 日本語
Yorodumi
- EMDB-35278: ecCTPS filament bound with CTP, NADH, DON -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-35278
TitleecCTPS filament bound with CTP, NADH, DON
Map data
Sample
  • Complex: ecCTPS filament with CTP,NADH,DON
    • Protein or peptide: CTP synthase
  • Ligand: ADENINE
  • Ligand: 5-OXO-L-NORLEUCINE
  • Ligand: CYTIDINE-5'-TRIPHOSPHATE
  • Ligand: MAGNESIUM ION
Keywordsinhibitor / metabolic filament / CTP synthase / HYDROLASE
Function / homology
Function and homology information


CTP synthase (glutamine hydrolysing) / CTP synthase activity / 'de novo' CTP biosynthetic process / pyrimidine nucleobase biosynthetic process / glutamine metabolic process / ATP binding / metal ion binding / identical protein binding / cytosol
Similarity search - Function
CTP synthase / CTP synthase, N-terminal / CTP synthase GATase domain / CTP synthase N-terminus / Glutamine amidotransferase / Glutamine amidotransferase class-I / Glutamine amidotransferase type 1 domain profile. / Class I glutamine amidotransferase-like / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Biological speciesEscherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsGuo CJ / Liu JL
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: mLife / Year: 2024
Title: Filamentation and inhibition of prokaryotic CTP synthase with ligands.
Authors: Chenjun Guo / Zixuan Wang / Ji-Long Liu /
Abstract: Cytidine triphosphate synthase (CTPS) plays a pivotal role in the de novo synthesis of cytidine triphosphate (CTP), a fundamental building block for RNA and DNA that is essential for life. CTPS is ...Cytidine triphosphate synthase (CTPS) plays a pivotal role in the de novo synthesis of cytidine triphosphate (CTP), a fundamental building block for RNA and DNA that is essential for life. CTPS is capable of directly binding to all four nucleotide triphosphates: adenine triphosphate, uridine triphosphate, CTP, and guanidine triphosphate. Furthermore, CTPS can form cytoophidia in vivo and metabolic filaments in vitro, undergoing regulation at multiple levels. CTPS is considered a potential therapeutic target for combating invasions or infections by viral or prokaryotic pathogens. Utilizing cryo-electron microscopy, we determined the structure of CTPS (ecCTPS) filament in complex with CTP, nicotinamide adenine dinucleotide (NADH), and the covalent inhibitor 6-diazo-5-oxo- l-norleucine (DON), achieving a resolution of 2.9 Å. We constructed a phylogenetic tree based on differences in filament-forming interfaces and designed a variant to validate our hypothesis, providing an evolutionary perspective on CTPS filament formation. Our computational analysis revealed a solvent-accessible ammonia tunnel upon DON binding. Through comparative structural analysis, we discern a distinct mode of CTP binding of ecCTPS that differs from eukaryotic counterparts. Combining biochemical assays and structural analysis, we determined and validated the synergistic inhibitory effects of CTP with NADH or adenine on CTPS. Our results expand our comprehension of the diverse regulatory aspects of CTPS and lay a foundation for the design of specific inhibitors targeting prokaryotic CTPS.
History
DepositionFeb 7, 2023-
Header (metadata) releaseFeb 14, 2024-
Map releaseFeb 14, 2024-
UpdateJul 24, 2024-
Current statusJul 24, 2024Processing site: PDBj / Status: Released

-
Structure visualization

Supplemental images

emd_35278.png

Downloads & links

-
Map

FileDownload / File: emd_35278.map.gz / Format: CCP4 / Size: 59.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.06 Å/pix.
x 250 pix.
= 265. Å		1.06 Å/pix.
x 250 pix.
= 265. Å		1.06 Å/pix.
x 250 pix.
= 265. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.06 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.008
Minimum - Maximum-0.009183244 - 0.032624766
Average (Standard dev.)-0.00007616505 (±0.0012603642)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions250250250
Spacing250250250
CellA=B=C: 265.0 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Mask #1

Fileemd_35278_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #2

Fileemd_35278_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #1

Fileemd_35278_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : ecCTPS filament with CTP,NADH,DON

EntireName: ecCTPS filament with CTP,NADH,DON
Components
  • Complex: ecCTPS filament with CTP,NADH,DON
    • Protein or peptide: CTP synthase
  • Ligand: ADENINE
  • Ligand: 5-OXO-L-NORLEUCINE
  • Ligand: CYTIDINE-5'-TRIPHOSPHATE
  • Ligand: MAGNESIUM ION

-
Supramolecule #1: ecCTPS filament with CTP,NADH,DON

SupramoleculeName: ecCTPS filament with CTP,NADH,DON / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)

-
Macromolecule #1: CTP synthase

MacromoleculeName: CTP synthase / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
Molecular weightTheoretical: 60.317801 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString: MTTNYIFVTG GVVSSLGKGI AAASLAAILE ARGLNVTIMK LDPYINVDPG TMSPIQHGEV FVTEDGAETD LDLGHYERFI RTKMSRRNN FTTGRIYSDV LRKERRGDYL GATVQVIPHI TNAIKERVLE GGEGHDVVLV EIGGTVGDIE SLPFLEAIRQ M AVEIGREH ...String:
MTTNYIFVTG GVVSSLGKGI AAASLAAILE ARGLNVTIMK LDPYINVDPG TMSPIQHGEV FVTEDGAETD LDLGHYERFI RTKMSRRNN FTTGRIYSDV LRKERRGDYL GATVQVIPHI TNAIKERVLE GGEGHDVVLV EIGGTVGDIE SLPFLEAIRQ M AVEIGREH TLFMHLTLVP YMAASGEVKT KPTQHSVKEL LSIGIQPDIL ICRSDRAVPA NERAKIALFC NVPEKAVISL KD VDSIYKI PGLLKSQGLD DYICKRFSLN CPEANLSEWE QVIFEEANPV SEVTIGMVGK YIELPDAYKS VIEALKHGGL KNR VSVNIK LIDSQDVETR GVEILKGLDA ILVPGGFGYR GVEGMITTAR FARENNIPYL GICLGMQVAL IDYARHVANM ENAN STEFV PDCKYPVVAL ITEWRDENGN VEVRSEKSDL GGTMRLGAQQ CQLVDDSLVR QLYNAPTIVE RHRHRYEVNN MLLKQ IEDA GLRVAGRSGD DQLVEIIEVP NHPWFVACQF HPEFTSTPRD GHPLFAGFVK AASEFQKRQA

UniProtKB: CTP synthase

-
Macromolecule #2: ADENINE

MacromoleculeName: ADENINE / type: ligand / ID: 2 / Number of copies: 4 / Formula: ADE
Molecular weightTheoretical: 135.127 Da
Chemical component information

ChemComp-ADE:
ADENINE

-
Macromolecule #3: 5-OXO-L-NORLEUCINE

MacromoleculeName: 5-OXO-L-NORLEUCINE / type: ligand / ID: 3 / Number of copies: 4 / Formula: ONL
Molecular weightTheoretical: 145.156 Da
Chemical component information

ChemComp-ONL:
5-OXO-L-NORLEUCINE

-
Macromolecule #4: CYTIDINE-5'-TRIPHOSPHATE

MacromoleculeName: CYTIDINE-5'-TRIPHOSPHATE / type: ligand / ID: 4 / Number of copies: 4 / Formula: CTP
Molecular weightTheoretical: 483.156 Da
Chemical component information

ChemComp-CTP:
CYTIDINE-5'-TRIPHOSPHATE

-
Macromolecule #5: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 5 / Number of copies: 4 / Formula: MG
Molecular weightTheoretical: 24.305 Da

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation statefilament

-
Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 1300114
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

+
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