[English] 日本語
Yorodumi
- PDB-8qzv: Crystal structure of translation factor eIF5A from Trichomonas va... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 8qzv
TitleCrystal structure of translation factor eIF5A from Trichomonas vaginalis
ComponentsEukaryotic translation initiation factor 5A
KeywordsTRANSLATION / translation factor / hypusination / eIF5A / hypusine
Function / homology
Function and homology information


positive regulation of translational termination / positive regulation of translational elongation / translation elongation factor activity / translation initiation factor activity / ribosome binding / RNA binding
Similarity search - Function
: / Translation initiation factor 5A-like, N-terminal / Translation elongation factor, IF5A, hypusine site / Eukaryotic initiation factor 5A hypusine signature. / Eukaryotic elongation factor 5A hypusine, DNA-binding OB fold / Translation elongation factor IF5A-like / Translation elongation factor, IF5A C-terminal / Eukaryotic elongation factor 5A hypusine, DNA-binding OB fold / Translation protein SH3-like domain superfamily / Ribosomal protein L2, domain 2 / Nucleic acid-binding, OB-fold
Similarity search - Domain/homology
Eukaryotic translation initiation factor 5A
Similarity search - Component
Biological speciesTrichomonas vaginalis (eukaryote)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.35 Å
AuthorsWator, E. / Wilk, P. / Grudnik, P.
Funding support Poland, 2items
OrganizationGrant numberCountry
Polish National Science Centre2019/35/N/NZ1/02805 Poland
Polish National Science Centre2019/33/B/NZ1/01839 Poland
CitationJournal: FEBS J / Year: 2024
Title: Structural characterization of the (deoxy)hypusination in Trichomonas vaginalis questions the bifunctionality of deoxyhypusine synthase.
Authors: Elżbieta Wątor / Piotr Wilk / Paweł Kochanowski / Przemysław Grudnik /
Abstract: Trichomonas vaginalis, the causative agent of trichomoniasis, is a prevalent anaerobic protozoan parasite responsible for the most common nonviral sexually transmitted infection globally. While ...Trichomonas vaginalis, the causative agent of trichomoniasis, is a prevalent anaerobic protozoan parasite responsible for the most common nonviral sexually transmitted infection globally. While metronidazole and its derivatives are approved drugs for this infection, rising resistance necessitates the exploration of new antiparasitic therapies. Protein posttranslational modifications (PTMs) play crucial roles in cellular processes, and among them, hypusination, involving eukaryotic translation factor 5A (eIF5A), has profound implications. Despite extensive studies in various organisms, the role of hypusination in T. vaginalis and its potential impact on parasite biology and pathogenicity remain poorly understood. This study aims to unravel the structural basis of the hypusination pathway in T. vaginalis using X-ray crystallography and cryo-electron microscopy. The results reveal high structural homology between T. vaginalis and human orthologs, providing insights into the molecular architecture of eIF5A and deoxyhypusine synthase (DHS) and their interaction. Contrary to previous suggestions of bifunctionality, our analyses indicate that the putative hydroxylation site in tvDHS is nonfunctional, and biochemical assays demonstrate exclusive deoxyhypusination capability. These findings challenge the notion of tvDHS functioning as both deoxyhypusine synthase and hydroxylase. The study enhances understanding of the hypusination pathway in T. vaginalis, shedding light on its functional relevance and potential as a drug target, and contributing to the development of novel therapeutic strategies against trichomoniasis.
History
DepositionOct 30, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 3, 2024Provider: repository / Type: Initial release
Revision 1.1Jul 10, 2024Group: Database references / Category: citation / citation_author
Item: _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Eukaryotic translation initiation factor 5A


Theoretical massNumber of molelcules
Total (without water)18,4311
Polymers18,4311
Non-polymers00
Water2,684149
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area0 Å2
ΔGint0 kcal/mol
Surface area8240 Å2
MethodPISA
Unit cell
Length a, b, c (Å)34.262, 40.795, 117.024
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

-
Components

#1: Protein Eukaryotic translation initiation factor 5A / eIF-5A


Mass: 18430.594 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Trichomonas vaginalis (eukaryote) / Gene: eIF-5A1 / Plasmid: pETM11 / Production host: Escherichia coli (E. coli) / References: UniProt: D5MC19
#2: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 149 / Source method: isolated from a natural source / Formula: H2O

-
Experimental details

-
Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

-
Sample preparation

CrystalDensity Matthews: 2.22 Å3/Da / Density % sol: 44.56 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 4.2
Details: 0.1 M phosphate/citrate pH=4.2 40 % PEG 300 Directly from crystallization screen

-
Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: BESSY / Beamline: 14.1 / Wavelength: 0.9184 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Jan 18, 2020
RadiationMonochromator: DCM / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9184 Å / Relative weight: 1
ReflectionResolution: 1.35→40.8 Å / Num. obs: 37009 / % possible obs: 99.78 % / Redundancy: 13.6 % / Biso Wilson estimate: 27.74 Å2 / CC1/2: 1 / Rmerge(I) obs: 0.069 / Rrim(I) all: 0.072 / Net I/av σ(I): 15.77 / Net I/σ(I): 15.25
Reflection shellResolution: 1.35→1.43 Å / Redundancy: 11.7 % / Rmerge(I) obs: 2.692 / Mean I/σ(I) obs: 15.77 / Num. unique obs: 68214 / CC1/2: 0.637 / Rrim(I) all: 2.815 / % possible all: 98.1

-
Processing

Software
NameVersionClassification
PHENIX(1.20.1_4487: ???)refinement
XDSdata reduction
XDSdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.35→38.52 Å / SU ML: 0.22 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 36.99 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2357 1115 3.01 %
Rwork0.2111 --
obs0.2118 37009 99.51 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 1.35→38.52 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1053 0 0 149 1202
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.016
X-RAY DIFFRACTIONf_angle_d1.404
X-RAY DIFFRACTIONf_dihedral_angle_d12.509400
X-RAY DIFFRACTIONf_chiral_restr0.092174
X-RAY DIFFRACTIONf_plane_restr0.01189
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.35-1.410.48581350.51414337X-RAY DIFFRACTION98
1.41-1.480.46351360.44674416X-RAY DIFFRACTION100
1.48-1.580.37071380.33754437X-RAY DIFFRACTION100
1.58-1.70.26541390.25434445X-RAY DIFFRACTION100
1.7-1.870.24031380.21594446X-RAY DIFFRACTION100
1.87-2.140.22841400.18444533X-RAY DIFFRACTION100
2.14-2.690.22591410.20284525X-RAY DIFFRACTION100
2.69-38.520.20451480.18054755X-RAY DIFFRACTION100

+
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://pdbjlvh1.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