[English] 日本語
Yorodumi
- EMDB-28214: Cryo-EM structure of human PRDX4 -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-28214
TitleCryo-EM structure of human PRDX4
Map dataCryo-EM structure of human PRDX4
Sample
  • Complex: H6PD
    • Protein or peptide: Peroxiredoxin-4
  • Ligand: water
KeywordsOXIDOREDUCTASE
Function / homology
Function and homology information


cellular response to stress / negative regulation of male germ cell proliferation / I-kappaB phosphorylation / thioredoxin-dependent peroxiredoxin / thioredoxin peroxidase activity / molecular sequestering activity / protein maturation by protein folding / extracellular matrix organization / cell redox homeostasis / hydrogen peroxide catabolic process ...cellular response to stress / negative regulation of male germ cell proliferation / I-kappaB phosphorylation / thioredoxin-dependent peroxiredoxin / thioredoxin peroxidase activity / molecular sequestering activity / protein maturation by protein folding / extracellular matrix organization / cell redox homeostasis / hydrogen peroxide catabolic process / male gonad development / spermatogenesis / secretory granule lumen / response to oxidative stress / ficolin-1-rich granule lumen / molecular adaptor activity / Neutrophil degranulation / endoplasmic reticulum / extracellular exosome / extracellular region / identical protein binding / nucleus / cytosol
Similarity search - Function
Peroxiredoxin, C-terminal / C-terminal domain of 1-Cys peroxiredoxin / Alkyl hydroperoxide reductase subunit C/ Thiol specific antioxidant / AhpC/TSA family / Thioredoxin domain profile. / Thioredoxin domain / Thioredoxin-like superfamily
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.83 Å
AuthorsSu CC / Lyu M
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID) United States
CitationJournal: Cell Rep / Year: 2023
Title: High-resolution structural-omics of human liver enzymes.
Authors: Chih-Chia Su / Meinan Lyu / Zhemin Zhang / Masaru Miyagi / Wei Huang / Derek J Taylor / Edward W Yu /
Abstract: We applied raw human liver microsome lysate to a holey carbon grid and used cryo-electron microscopy (cryo-EM) to define its composition. From this sample we identified and simultaneously determined ...We applied raw human liver microsome lysate to a holey carbon grid and used cryo-electron microscopy (cryo-EM) to define its composition. From this sample we identified and simultaneously determined high-resolution structural information for ten unique human liver enzymes involved in diverse cellular processes. Notably, we determined the structure of the endoplasmic bifunctional protein H6PD, where the N- and C-terminal domains independently possess glucose-6-phosphate dehydrogenase and 6-phosphogluconolactonase enzymatic activity, respectively. We also obtained the structure of heterodimeric human GANAB, an ER glycoprotein quality-control machinery that contains a catalytic α subunit and a noncatalytic β subunit. In addition, we observed a decameric peroxidase, PRDX4, which directly contacts a disulfide isomerase-related protein, ERp46. Structural data suggest that several glycosylations, bound endogenous compounds, and ions associate with these human liver enzymes. These results highlight the importance of cryo-EM in facilitating the elucidation of human organ proteomics at the atomic level.
History
DepositionSep 22, 2022-
Header (metadata) releaseMay 3, 2023-
Map releaseMay 3, 2023-
UpdateNov 15, 2023-
Current statusNov 15, 2023Processing site: RCSB / Status: Released

-
Structure visualization

Supplemental images

emd_28214.png

Downloads & links

-
Map

FileDownload / File: emd_28214.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationCryo-EM structure of human PRDX4
Voxel sizeX=Y=Z: 1.08 Å
Density
Contour LevelBy AUTHOR: 0.37
Minimum - Maximum-1.8224118 - 3.2470162
Average (Standard dev.)0.00005909519 (±0.07384141)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 324.0 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Mask #1

Fileemd_28214_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Additional map: unsharpened map

Fileemd_28214_additional_1.map
Annotationunsharpened map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: Cryo-EM structure of human PRDX4

Fileemd_28214_half_map_1.map
AnnotationCryo-EM structure of human PRDX4
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: Cryo-EM structure of human PRDX4

Fileemd_28214_half_map_2.map
AnnotationCryo-EM structure of human PRDX4
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : H6PD

EntireName: H6PD
Components
  • Complex: H6PD
    • Protein or peptide: Peroxiredoxin-4
  • Ligand: water

-
Supramolecule #1: H6PD

SupramoleculeName: H6PD / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

-
Macromolecule #1: Peroxiredoxin-4

MacromoleculeName: Peroxiredoxin-4 / type: protein_or_peptide / ID: 1 / Number of copies: 10 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 30.578873 KDa
SequenceString: MEALPLLAAT TPDHGRHRRL LLLPLLLFLL PAGAVQGWET EERPRTREEE CHFYAGGQVY PGEASRVSVA DHSLHLSKAK ISKPAPYWE GTAVIDGEFK ELKLTDYRGK YLVFFFYPLD FTFVCPTEII AFGDRLEEFR SINTEVVACS VDSQFTHLAW I NTPRRQGG ...String:
MEALPLLAAT TPDHGRHRRL LLLPLLLFLL PAGAVQGWET EERPRTREEE CHFYAGGQVY PGEASRVSVA DHSLHLSKAK ISKPAPYWE GTAVIDGEFK ELKLTDYRGK YLVFFFYPLD FTFVCPTEII AFGDRLEEFR SINTEVVACS VDSQFTHLAW I NTPRRQGG LGPIRIPLLS DLTHQISKDY GVYLEDSGHT LRGLFIIDDK GILRQITLND LPVGRSVDET LRLVQAFQYT DK HGEVCPA GWKPGSETII PDPAGKLKYF DKLN

UniProtKB: Peroxiredoxin-4

-
Macromolecule #2: water

MacromoleculeName: water / type: ligand / ID: 2 / Number of copies: 402 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER / Water

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

Concentration0.5 mg/mL
BufferpH: 7.5
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV
DetailsThis is from a heterogeneous and impure protein sample.

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 29.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

-
Image processing

Startup modelType of model: INSILICO MODEL
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.83 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 34192
FSC plot (resolution estimation)

-
Atomic model buiding 1

RefinementProtocol: AB INITIO MODEL
Output model

PDB-8ekw:
Cryo-EM structure of human PRDX4

+
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