[English] 日本語
Yorodumi
- PDB-7y48: Cryo-EM Structure of biliverdin-bound mitochondrial ABC transport... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 7y48
TitleCryo-EM Structure of biliverdin-bound mitochondrial ABC transporter ABCB10 from Biortus
ComponentsATP-binding cassette sub-family B member 10, mitochondrial
KeywordsMEMBRANE PROTEIN / ABC transporter / biliverdin
Function / homology
Function and homology information


positive regulation of heme biosynthetic process / mitochondrial unfolded protein response / Mitochondrial ABC transporters / positive regulation of hemoglobin biosynthetic process / heme biosynthetic process / mitochondrial transport / ABC-type transporter activity / erythrocyte development / positive regulation of erythrocyte differentiation / mitochondrial membrane ...positive regulation of heme biosynthetic process / mitochondrial unfolded protein response / Mitochondrial ABC transporters / positive regulation of hemoglobin biosynthetic process / heme biosynthetic process / mitochondrial transport / ABC-type transporter activity / erythrocyte development / positive regulation of erythrocyte differentiation / mitochondrial membrane / mitochondrial inner membrane / protein homodimerization activity / ATP hydrolysis activity / mitochondrion / ATP binding
Similarity search - Function
Type 1 protein exporter / ABC transporter transmembrane region / ABC transporter type 1, transmembrane domain / ABC transporter integral membrane type-1 fused domain profile. / ABC transporter type 1, transmembrane domain superfamily / ABC transporter-like, conserved site / ABC transporters family signature. / ABC transporter / ABC transporter-like, ATP-binding domain / ATP-binding cassette, ABC transporter-type domain profile. ...Type 1 protein exporter / ABC transporter transmembrane region / ABC transporter type 1, transmembrane domain / ABC transporter integral membrane type-1 fused domain profile. / ABC transporter type 1, transmembrane domain superfamily / ABC transporter-like, conserved site / ABC transporters family signature. / ABC transporter / ABC transporter-like, ATP-binding domain / ATP-binding cassette, ABC transporter-type domain profile. / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
CHOLESTEROL / Biliverdine IX Alpha / ATP-binding cassette sub-family B member 10, mitochondrial
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.85 Å
AuthorsCao, S. / Yang, Y.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Nat Commun / Year: 2023
Title: Cryo-EM structures of mitochondrial ABC transporter ABCB10 in apo and biliverdin-bound form.
Authors: Sheng Cao / Yihu Yang / Lili He / Yumo Hang / Xiaodong Yan / Hui Shi / Jiaquan Wu / Zhuqing Ouyang /
Abstract: ABCB10, a member of ABC transporter superfamily that locates in the inner membrane of mitochondria, plays crucial roles in hemoglobin synthesis, antioxidative stress and stabilization of the iron ...ABCB10, a member of ABC transporter superfamily that locates in the inner membrane of mitochondria, plays crucial roles in hemoglobin synthesis, antioxidative stress and stabilization of the iron transporter mitoferrin-1. Recently, it was found that ABCB10 is a mitochondrial biliverdin exporter. However, the molecular mechanism of biliverdin export by ABCB10 remains elusive. Here we report the cryo-EM structures of ABCB10 in apo (ABCB10-apo) and biliverdin-bound form (ABCB10-BV) at 3.67 Å and 2.85 Å resolution, respectively. ABCB10-apo adopts a wide-open conformation and may thus represent the apo form structure. ABCB10-BV forms a closed conformation and biliverdin situates in a hydrophobic pocket in one protomer and bridges the interaction through hydrogen bonds with the opposing one. We also identify cholesterols sandwiched by BVs and discuss the export dynamics based on these structural and biochemical observations.
History
DepositionJun 14, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0May 24, 2023Provider: repository / Type: Initial release
Revision 1.1Sep 27, 2023Group: Data collection / Derived calculations ...Data collection / Derived calculations / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / em_3d_fitting_list / entity / pdbx_entity_nonpoly
Item: _chem_comp.name / _chem_comp.pdbx_synonyms ..._chem_comp.name / _chem_comp.pdbx_synonyms / _em_3d_fitting_list.initial_refinement_model_id / _entity.pdbx_description / _pdbx_entity_nonpoly.name
Revision 1.2May 8, 2024Group: Database references / Structure summary / Category: citation / pdbx_contact_author
Item: _citation.page_last / _citation.pdbx_database_id_PubMed ..._citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _pdbx_contact_author.email

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
B: ATP-binding cassette sub-family B member 10, mitochondrial
hetero molecules


Theoretical massNumber of molelcules
Total (without water)68,1493
Polymers67,1801
Non-polymers9692
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

-
Components

#1: Protein ATP-binding cassette sub-family B member 10, mitochondrial / ATP-binding cassette transporter 10 / ABC transporter 10 protein


Mass: 67180.125 Da / Num. of mol.: 1 / Mutation: Q9NRK6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ABCB10 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q9NRK6
#2: Chemical ChemComp-CLR / CHOLESTEROL


Mass: 386.654 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H46O / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical ChemComp-IE5 / Biliverdine IX Alpha / 3-[5-[(3-ethenyl-4-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-2-[(~{Z})-[5-[(~{Z})-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-pyrrol-2-ylidene]methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid


Mass: 582.646 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C33H34N4O6 / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY

-
Experimental details

-
Experiment

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

-
Sample preparation

ComponentName: Complex of ABCB10 binding with biliverdin / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human) / Cell: HEK293
Buffer solutionpH: 7.5
SpecimenConc.: 4.78 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: 5W / Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

-
Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1100 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm
Image recordingAverage exposure time: 2.5 sec. / Electron dose: 55.21 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

-
Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C2 (2 fold cyclic)
3D reconstructionResolution: 2.85 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 206922 / Symmetry type: POINT
Atomic model buildingB value: 97.3 / Protocol: AB INITIO MODEL
Atomic model buildingPDB-ID: 4AYX

4ayx


Accession code: 4AYX / Source name: PDB / Type: experimental model

+
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