[English] 日本語
Yorodumi
- PDB-5wua: Structure of a Pancreatic ATP-sensitive Potassium Channel -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 5wua
TitleStructure of a Pancreatic ATP-sensitive Potassium Channel
Components
  • ATP-sensitive inward rectifier potassium channel 11,superfolder GFP
  • SUR1
KeywordsTRANSPORT PROTEIN / KATP / channel / ABC transporter / Kir
Function / homology
Function and homology information


ATP sensitive Potassium channels / response to resveratrol / ATP-activated inward rectifier potassium channel activity / inward rectifying potassium channel / Regulation of insulin secretion / sulfonylurea receptor activity / cell body fiber / ventricular cardiac muscle tissue development / ABC-family proteins mediated transport / CAMKK-AMPK signaling cascade ...ATP sensitive Potassium channels / response to resveratrol / ATP-activated inward rectifier potassium channel activity / inward rectifying potassium channel / Regulation of insulin secretion / sulfonylurea receptor activity / cell body fiber / ventricular cardiac muscle tissue development / ABC-family proteins mediated transport / CAMKK-AMPK signaling cascade / voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / Ion homeostasis / ATPase-coupled monoatomic cation transmembrane transporter activity / inward rectifier potassium channel activity / regulation of monoatomic ion transmembrane transport / nervous system process / inorganic cation transmembrane transport / response to stress / ankyrin binding / response to ATP / action potential / potassium ion import across plasma membrane / response to testosterone / potassium ion binding / intercalated disc / axolemma / ABC-type transporter activity / negative regulation of insulin secretion / cellular response to nutrient levels / heat shock protein binding / T-tubule / acrosomal vesicle / determination of adult lifespan / response to ischemia / positive regulation of protein localization to plasma membrane / cellular response to glucose stimulus / potassium ion transport / sarcolemma / cellular response to nicotine / glucose metabolic process / cellular response to tumor necrosis factor / nuclear envelope / response to estradiol / presynaptic membrane / transmembrane transporter binding / response to hypoxia / endosome / response to xenobiotic stimulus / neuronal cell body / glutamatergic synapse / apoptotic process / ATP hydrolysis activity / protein-containing complex / ATP binding / plasma membrane / cytoplasm
Similarity search - Function
Potassium channel, inwardly rectifying, Kir6.2 / ATP-binding cassette subfamily C member 8 / Sulphonylurea receptor / Potassium channel, inwardly rectifying, transmembrane domain / Inward rectifier potassium channel transmembrane domain / Potassium channel, inwardly rectifying, Kir, cytoplasmic / Potassium channel, inwardly rectifying, Kir / Inward rectifier potassium channel, C-terminal / Inward rectifier potassium channel C-terminal domain / : ...Potassium channel, inwardly rectifying, Kir6.2 / ATP-binding cassette subfamily C member 8 / Sulphonylurea receptor / Potassium channel, inwardly rectifying, transmembrane domain / Inward rectifier potassium channel transmembrane domain / Potassium channel, inwardly rectifying, Kir, cytoplasmic / Potassium channel, inwardly rectifying, Kir / Inward rectifier potassium channel, C-terminal / Inward rectifier potassium channel C-terminal domain / : / 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. / Immunoglobulin E-set / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
SUR1 / ATP-sensitive inward rectifier potassium channel 11
Similarity search - Component
Biological speciesMus musculus (house mouse)
synthetic construct (others)
Mesocricetus auratus (golden hamster)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.6 Å
AuthorsLi, N. / Wu, J.-X. / Chen, L. / Gao, N.
Funding support China, 2items
OrganizationGrant numberCountry
Ministry of Science and Technology of China2016YFA0502004,2016YFA0500700,2013CB910404 China
National Natural Science Foundation of China31622021, 31521062,31422016, 31470722, 31630087 China
CitationJournal: Cell / Year: 2017
Title: Structure of a Pancreatic ATP-Sensitive Potassium Channel.
Authors: Ningning Li / Jing-Xiang Wu / Dian Ding / Jiaxuan Cheng / Ning Gao / Lei Chen /
Abstract: ATP-sensitive potassium channels (K) couple intracellular ATP levels with membrane excitability. These channels play crucial roles in many essential physiological processes and have been implicated ...ATP-sensitive potassium channels (K) couple intracellular ATP levels with membrane excitability. These channels play crucial roles in many essential physiological processes and have been implicated extensively in a spectrum of metabolic diseases and disorders. To gain insight into the mechanism of K, we elucidated the structure of a hetero-octameric pancreatic K channel in complex with a non-competitive inhibitor glibenclamide by single-particle cryoelectron microscopy to 5.6-Å resolution. The structure shows that four SUR1 regulatory subunits locate peripherally and dock onto the central Kir6.2 channel tetramer through the SUR1 TMD0-L0 fragment. Glibenclamide-bound SUR1 uses TMD0-L0 fragment to stabilize Kir6.2 channel in a closed conformation. In another structural population, a putative co-purified phosphatidylinositol 4,5-bisphosphate (PIP) molecule uncouples Kir6.2 from glibenclamide-bound SUR1. These structural observations suggest a molecular mechanism for K regulation by anti-diabetic sulfonylurea drugs, intracellular adenosine nucleotide concentrations, and PIP lipid.
History
DepositionDec 16, 2016Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jan 25, 2017Provider: repository / Type: Initial release

-
Structure visualization

Movie
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-6689
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: ATP-sensitive inward rectifier potassium channel 11,superfolder GFP
B: ATP-sensitive inward rectifier potassium channel 11,superfolder GFP
C: ATP-sensitive inward rectifier potassium channel 11,superfolder GFP
D: ATP-sensitive inward rectifier potassium channel 11,superfolder GFP
E: SUR1
F: SUR1
G: SUR1
H: SUR1


Theoretical massNumber of molelcules
Total (without water)1,014,5438
Polymers1,014,5438
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area29820 Å2
ΔGint-266 kcal/mol
Surface area348440 Å2

-
Components

#1: Protein
ATP-sensitive inward rectifier potassium channel 11,superfolder GFP / Inward rectifier K(+) channel Kir6.2 / Potassium channel / inwardly rectifying subfamily J member 11


Mass: 76339.242 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Details: ATP-sensitive inward rectifier potassium channel 11 with C-terminal synthetic superfolder GFP and affinity tags added
Source: (gene. exp.) Mus musculus (house mouse), (gene. exp.) synthetic construct (others)
Gene: Kcnj11 / Cell line (production host): HEK / Production host: Homo sapiens (human) / References: UniProt: Q61743
#2: Protein
SUR1 / Sulfonylurea receptor 1


Mass: 177296.578 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mesocricetus auratus (golden hamster) / Cell line (production host): HEK / Production host: Homo sapiens (human) / References: UniProt: A0A1S4NYG1*PLUS

-
Experimental details

-
Experiment

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

-
Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1ATP sensitive potassiumCOMPLEXall0RECOMBINANT
2ATP-sensitive inward rectifier potassium channel 11COMPLEX#11RECOMBINANT
3SUR1COMPLEX#21RECOMBINANT
Molecular weightValue: 880 kDa/nm / Experimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
21Mus musculus (house mouse)10090
31Mesocricetus auratus (golden hamster)10036
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-IDCellPlasmid
21Homo sapiens (human)9606HEKBacMam
31Homo sapiens (human)9606HEK
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

-
Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 40 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON II (4k x 4k)

-
Processing

EM softwareName: relion / Version: 2 / Category: 3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C4 (4 fold cyclic)
3D reconstructionResolution: 5.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 34500 / Symmetry type: POINT

+
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