[English] 日本語
Yorodumi
- PDB-9v5h: cryo-EM structure of hexameric ArnA -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 9v5h
Titlecryo-EM structure of hexameric ArnA
Components(Bifunctional polymyxin resistance protein ArnA) x 2
KeywordsTRANSFERASE / Lipid A modification Polymyxin resistance Bifunctional enzyme UDP-glucuronic acid dehydrogenase UDP-4-amino-4-deoxy-L-arabinose / transferase Lipopolysaccharide biosynthesis Antibiotic resistance Aminotransferase Dehydrogenase LPS modification pathway L-Ara4N biosynthesis
Function / homology
Function and homology information


UDP-4-deoxy-4-formamido-beta-L-arabinopyranose biosynthetic process / UDP-glucuronate dehydrogenase activity / UDP-4-amino-4-deoxy-L-arabinose formyltransferase activity / UDP-glucuronic acid dehydrogenase (UDP-4-keto-hexauronic acid decarboxylating) / UDP-4-amino-4-deoxy-L-arabinose formyltransferase / UDP-D-xylose biosynthetic process / UDP-glucuronate decarboxylase activity / lipopolysaccharide biosynthetic process / lipid A biosynthetic process / NAD+ binding ...UDP-4-deoxy-4-formamido-beta-L-arabinopyranose biosynthetic process / UDP-glucuronate dehydrogenase activity / UDP-4-amino-4-deoxy-L-arabinose formyltransferase activity / UDP-glucuronic acid dehydrogenase (UDP-4-keto-hexauronic acid decarboxylating) / UDP-4-amino-4-deoxy-L-arabinose formyltransferase / UDP-D-xylose biosynthetic process / UDP-glucuronate decarboxylase activity / lipopolysaccharide biosynthetic process / lipid A biosynthetic process / NAD+ binding / response to antibiotic / protein-containing complex / identical protein binding / membrane
Similarity search - Function
Bifunctional polymyxin resistance protein, ArnA / Bifunctional polymyxin resistance protein ArnA-like, extended (e) SDRs / : / Formyl transferase, C-terminal / Formyl transferase, C-terminal domain / Formyl transferase-like, C-terminal domain superfamily / Formyl transferase, N-terminal / Formyl transferase / Formyl transferase, N-terminal domain superfamily / NAD-dependent epimerase/dehydratase ...Bifunctional polymyxin resistance protein, ArnA / Bifunctional polymyxin resistance protein ArnA-like, extended (e) SDRs / : / Formyl transferase, C-terminal / Formyl transferase, C-terminal domain / Formyl transferase-like, C-terminal domain superfamily / Formyl transferase, N-terminal / Formyl transferase / Formyl transferase, N-terminal domain superfamily / NAD-dependent epimerase/dehydratase / NAD dependent epimerase/dehydratase family / NAD(P)-binding domain superfamily
Similarity search - Domain/homology
Bifunctional polymyxin resistance protein ArnA
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4 Å
AuthorsCaliseki, M. / Borucu, U. / Kadapalakere, S.Y. / Schaffitzel, C. / Kabasakal, B.V.
Funding support United Kingdom, Turkey, 4items
OrganizationGrant numberCountry
Other government118C225
Biotechnology and Biological Sciences Research Council (BBSRC)BB/P000940/1 United Kingdom
Other government210701/Z/18/Z
Other government Turkey
CitationJournal: Biorxiv / Year: 2025
Title: Off-Target Structural Insights: ArnA and AcrB in Bacterial Membrane Protein Cryo-EM Analysis
Authors: Caliseki, M. / Borucu, U. / Yadav, S.K.N. / Schaffitzel, C. / Kabasakal, B.V.
History
DepositionMay 26, 2025Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 30, 2025Provider: repository / Type: Initial release

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Bifunctional polymyxin resistance protein ArnA
B: Bifunctional polymyxin resistance protein ArnA
C: Bifunctional polymyxin resistance protein ArnA
D: Bifunctional polymyxin resistance protein ArnA
E: Bifunctional polymyxin resistance protein ArnA
F: Bifunctional polymyxin resistance protein ArnA
G: Bifunctional polymyxin resistance protein ArnA
H: Bifunctional polymyxin resistance protein ArnA
I: Bifunctional polymyxin resistance protein ArnA
J: Bifunctional polymyxin resistance protein ArnA
K: Bifunctional polymyxin resistance protein ArnA
L: Bifunctional polymyxin resistance protein ArnA


Theoretical massNumber of molelcules
Total (without water)434,77012
Polymers434,77012
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

-
Components

#1: Protein
Bifunctional polymyxin resistance protein ArnA / Polymyxin resistance protein PmrI


Mass: 32717.416 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: arnA, pmrI, yfbG, b2255, JW2249 / Production host: Escherichia coli BL21(DE3) (bacteria)
References: UniProt: P77398, UDP-4-amino-4-deoxy-L-arabinose formyltransferase, UDP-glucuronic acid dehydrogenase (UDP-4-keto-hexauronic acid decarboxylating)
#2: Protein
Bifunctional polymyxin resistance protein ArnA / Polymyxin resistance protein PmrI


Mass: 39744.215 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: arnA, pmrI, yfbG, b2255, JW2249 / Production host: Escherichia coli BL21(DE3) (bacteria)
References: UniProt: P77398, UDP-4-amino-4-deoxy-L-arabinose formyltransferase, UDP-glucuronic acid dehydrogenase (UDP-4-keto-hexauronic acid decarboxylating)
Has protein modificationN

-
Experimental details

-
Experiment

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

-
Sample preparation

ComponentName: Hexameric Bifunctional polymyxin resistance protein ArnA
Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Escherichia coli (E. coli)
Source (recombinant)Organism: Escherichia coli BL21(DE3) (bacteria)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE-PROPANE

-
Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 700 nm
Image recordingElectron dose: 60.6 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k)

-
Processing

EM softwareName: PHENIX / Version: 1.21.2_5419: / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 74212 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00430234
ELECTRON MICROSCOPYf_angle_d0.95141070
ELECTRON MICROSCOPYf_dihedral_angle_d6.8044054
ELECTRON MICROSCOPYf_chiral_restr0.0524548
ELECTRON MICROSCOPYf_plane_restr0.0065322

+
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