5YWB

Structure of pancreatic ATP-sensitive potassium channel bound with Mg-ADP (CTD class2 at 5.2A)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Ligand binding and conformational changes of SUR1 subunit in pancreatic ATP-sensitive potassium channels.

Wu, J.X.Ding, D.Wang, M.Kang, Y.Zeng, X.Chen, L.

(2018) Protein Cell 9: 553-567

  • DOI: 10.1007/s13238-018-0530-y
  • Primary Citation of Related Structures:  
    5YWD, 5YWC, 5YWB, 5YWA, 5YW8, 5YW7, 5YW9, 5YKF, 5YKE, 5YKG

  • PubMed Abstract: 
  • ATP-sensitive potassium channels (K ATP ) are energy sensors on the plasma membrane. By sensing the intracellular ADP/ATP ratio of β-cells, pancreatic K ATP channels control insulin release and regulate metabolism at the whole body level ...

    ATP-sensitive potassium channels (K ATP ) are energy sensors on the plasma membrane. By sensing the intracellular ADP/ATP ratio of β-cells, pancreatic K ATP channels control insulin release and regulate metabolism at the whole body level. They are implicated in many metabolic disorders and diseases and are therefore important drug targets. Here, we present three structures of pancreatic K ATP channels solved by cryo-electron microscopy (cryo-EM), at resolutions ranging from 4.1 to 4.5 Å. These structures depict the binding site of the antidiabetic drug glibenclamide, indicate how Kir6.2 (inward-rectifying potassium channel 6.2) N-terminus participates in the coupling between the peripheral SUR1 (sulfonylurea receptor 1) subunit and the central Kir6.2 channel, reveal the binding mode of activating nucleotides, and suggest the mechanism of how Mg-ADP binding on nucleotide binding domains (NBDs) drives a conformational change of the SUR1 subunit.


    Organizational Affiliation

    Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China. chenlei2016@pku.edu.cn.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-sensitive inward rectifier potassium channel 11A, C, E, G390Mus musculusMutation(s): 0 
Gene Names: Kcnj11
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q61743 (Mus musculus)
Explore Q61743 
Go to UniProtKB:  Q61743
IMPC:  MGI:107501
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-binding cassette sub-family C member 8 isoform X2B, D, F, H1582Mesocricetus auratusMutation(s): 0 
Gene Names: ABCC8
Membrane Entity: Yes 
UniProt
Find proteins for Q09427 (Cricetus cricetus)
Explore Q09427 
Go to UniProtKB:  Q09427
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP (Subject of Investigation/LOI)
Query on ADP

Download Ideal Coordinates CCD File 
I [auth A] , J [auth B] , K [auth B] , N [auth C] , O [auth D] , P [auth D] , S [auth E] , T [auth F] , 
I [auth A],  J [auth B],  K [auth B],  N [auth C],  O [auth D],  P [auth D],  S [auth E],  T [auth F],  U [auth F],  X [auth G],  Y [auth H],  Z [auth H]
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
AA [auth H], BA [auth H], L [auth B], M [auth B], Q [auth D], R [auth D], V [auth F], W [auth F]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data

  • Deposited Date: 2017-11-29 
  • Released Date: 2018-05-30 
  • Deposition Author(s): Chen, L., Wu, J.X.

Funding OrganizationLocationGrant Number
Ministry of Science and Technology of ChinaChina2016YFA0502004
National Natural Science Foundation of ChinaChina31622021
National Natural Science Foundation of ChinaChina31521062
China Postdoctoral Science FoundationChina2016M600856
China Postdoctoral Science FoundationChina2017T100014

Revision History  (Full details and data files)

  • Version 1.0: 2018-05-30
    Type: Initial release
  • Version 1.1: 2018-06-13
    Changes: Data collection, Database references
  • Version 1.2: 2019-11-06
    Changes: Data collection, Other