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- EMDB-7339: Cryo-EM structure of human KATP bound to ATP and ADP in propeller form -

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Basic information

Entry
Database: EMDB / ID: EMD-7339
TitleCryo-EM structure of human KATP bound to ATP and ADP in propeller form
Map datahuman KATP complexed with ATP and ADP in propeller form
Sample
  • Complex: Quatrefoil form of human KATP in complex with ATP and ADP
    • Protein or peptide: ATP-sensitive inward rectifier potassium channel 11
    • Protein or peptide: ATP-binding cassette sub-family C member 8
  • Ligand: ADENOSINE-5'-TRIPHOSPHATE
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
  • Ligand: MAGNESIUM ION
Function / homology
Function and homology information


Defective ABCC9 causes CMD10, ATFB12 and Cantu syndrome / negative regulation of neuroblast migration / positive regulation of uterine smooth muscle relaxation / ATP sensitive Potassium channels / Defective ABCC8 can cause hypo- and hyper-glycemias / positive regulation of tight junction disassembly / potassium ion-transporting ATPase complex / negative regulation of blood-brain barrier permeability / ATP-activated inward rectifier potassium channel activity / glutamate secretion, neurotransmission ...Defective ABCC9 causes CMD10, ATFB12 and Cantu syndrome / negative regulation of neuroblast migration / positive regulation of uterine smooth muscle relaxation / ATP sensitive Potassium channels / Defective ABCC8 can cause hypo- and hyper-glycemias / positive regulation of tight junction disassembly / potassium ion-transporting ATPase complex / negative regulation of blood-brain barrier permeability / ATP-activated inward rectifier potassium channel activity / glutamate secretion, neurotransmission / inward rectifying potassium channel / negative regulation of low-density lipoprotein particle clearance / sulfonylurea receptor activity / voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / positive regulation of potassium ion transport / inward rectifier potassium channel activity / ATPase-coupled monoatomic cation transmembrane transporter activity / nervous system process / response to pH / regulation of monoatomic ion transmembrane transport / inorganic cation transmembrane transport / neuromuscular process / ankyrin binding / negative regulation of glial cell proliferation / cellular response to organic substance / response to ATP / response to zinc ion / potassium ion import across plasma membrane / positive regulation of insulin secretion involved in cellular response to glucose stimulus / intracellular glucose homeostasis / voltage-gated potassium channel activity / potassium ion binding / potassium channel activity / regulation of insulin secretion / ATPase-coupled transmembrane transporter activity / negative regulation of insulin secretion / ABC-type transporter activity / Ion homeostasis / potassium ion transmembrane transport / T-tubule / regulation of membrane potential / negative regulation of angiogenesis / Regulation of insulin secretion / female pregnancy / ADP binding / sarcolemma / response to insulin / visual learning / ABC-family proteins mediated transport / transmembrane transport / potassium ion transport / synaptic vesicle membrane / memory / glucose metabolic process / positive regulation of tumor necrosis factor production / transmembrane transporter binding / response to lipopolysaccharide / response to xenobiotic stimulus / ATP hydrolysis activity / ATP binding / membrane / plasma membrane
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 / ABC transporter transmembrane region ...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
ATP-binding cassette sub-family C member 8 / ATP-sensitive inward rectifier potassium channel 11
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 5.6 Å
AuthorsLee KPK / Chen J / MacKinnon R
CitationJournal: Elife / Year: 2017
Title: Molecular structure of human KATP in complex with ATP and ADP.
Authors: Kenneth Pak Kin Lee / Jue Chen / Roderick MacKinnon /
Abstract: In many excitable cells, KATP channels respond to intracellular adenosine nucleotides: ATP inhibits while ADP activates. We present two structures of the human pancreatic KATP channel, containing the ...In many excitable cells, KATP channels respond to intracellular adenosine nucleotides: ATP inhibits while ADP activates. We present two structures of the human pancreatic KATP channel, containing the ABC transporter SUR1 and the inward-rectifier K channel Kir6.2, in the presence of Mg and nucleotides. These structures, referred to as quatrefoil and propeller forms, were determined by single-particle cryo-EM at 3.9 Å and 5.6 Å, respectively. In both forms, ATP occupies the inhibitory site in Kir6.2. The nucleotide-binding domains of SUR1 are dimerized with Mg-ATP in the degenerate site and Mg-ADP in the consensus site. A lasso extension forms an interface between SUR1 and Kir6.2 adjacent to the ATP site in the propeller form and is disrupted in the quatrefoil form. These structures support the role of SUR1 as an ADP sensor and highlight the lasso extension as a key regulatory element in ADP's ability to override ATP inhibition.
History
DepositionJan 10, 2018-
Header (metadata) releaseJan 24, 2018-
Map releaseJan 24, 2018-
UpdateJan 24, 2018-
Current statusJan 24, 2018Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.0343
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by cylindrical radius
  • Surface level: 0.0343
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6c3p
  • Surface level: 0.0343
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_7339.png

Downloads & links

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Map

FileDownload / File: emd_7339.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationhuman KATP complexed with ATP and ADP in propeller form
Voxel sizeX=Y=Z: 1.3 Å
Density
Contour LevelBy AUTHOR: 0.0343 / Movie #1: 0.0343
Minimum - Maximum-0.75963086 - 1.0142564
Average (Standard dev.)0.00043109682 (±0.010625876)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 390.0 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.31.31.3
M x/y/z300300300
origin x/y/z0.0000.0000.000
length x/y/z390.000390.000390.000
α/β/γ90.00090.00090.000
start NX/NY/NZ-179-179-179
NX/NY/NZ359359359
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS300300300
D min/max/mean-0.7601.0140.000

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Supplemental data

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Sample components

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Entire : Quatrefoil form of human KATP in complex with ATP and ADP

EntireName: Quatrefoil form of human KATP in complex with ATP and ADP
Components
  • Complex: Quatrefoil form of human KATP in complex with ATP and ADP
    • Protein or peptide: ATP-sensitive inward rectifier potassium channel 11
    • Protein or peptide: ATP-binding cassette sub-family C member 8
  • Ligand: ADENOSINE-5'-TRIPHOSPHATE
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
  • Ligand: MAGNESIUM ION

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Supramolecule #1: Quatrefoil form of human KATP in complex with ATP and ADP

SupramoleculeName: Quatrefoil form of human KATP in complex with ATP and ADP
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Homo sapiens (human)
Molecular weightTheoretical: 880 KDa

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Macromolecule #1: ATP-sensitive inward rectifier potassium channel 11

MacromoleculeName: ATP-sensitive inward rectifier potassium channel 11 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 45.144367 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: SASASAMLSR KGIIPEEYVL TRLAEDPAEP RYRARQRRAR FVSKKGNCNV AHKNIREQGR FLQDVFTTLV DLKWPHTLLI FTMSFLCSW LLFAMAWWLI AFAHGDLAPS EGTAEPCVTS IHSFSSAFLF SIEVQVTIGF GGRMVTEECP LAILILIVQN I VGLMINAI ...String:
SASASAMLSR KGIIPEEYVL TRLAEDPAEP RYRARQRRAR FVSKKGNCNV AHKNIREQGR FLQDVFTTLV DLKWPHTLLI FTMSFLCSW LLFAMAWWLI AFAHGDLAPS EGTAEPCVTS IHSFSSAFLF SIEVQVTIGF GGRMVTEECP LAILILIVQN I VGLMINAI MLGCIFMKTA QAHRRAETLI FSKHAVIALR HGRLCFMLRV GDLRKSMIIS ATIHMQVVRK TTSPEGEVVP LH QVDIPME NGVGGNSIFL VAPLIIYHVI DANSPLYDLA PSDLHHHQDL EIIVILEGVV ETTGITTQAR TSYLADEILW GQR FVPIVA EEDGRYSVDY SKFGNTIKVP TPLCTARQLD EDHSLLEALT LASARGPLRK RSVPMAKAKP KFSISPDSLS SNSL EVLFQ G

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Macromolecule #2: ATP-binding cassette sub-family C member 8

MacromoleculeName: ATP-binding cassette sub-family C member 8 / type: protein_or_peptide / ID: 2 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 177.180219 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MPLAFCGSEN HSAAYRVDQG VLNNGCFVDA LNVVPHVFLL FITFPILFIG WGSQSSKVHI HHSTWLHFPG HNLRWILTFM LLFVLVCEI AEGILSDGVT ESHHLHLYMP AGMAFMAAVT SVVYYHNIET SNFPKLLIAL LVYWTLAFIT KTIKFVKFLD H AIGFSQLR ...String:
MPLAFCGSEN HSAAYRVDQG VLNNGCFVDA LNVVPHVFLL FITFPILFIG WGSQSSKVHI HHSTWLHFPG HNLRWILTFM LLFVLVCEI AEGILSDGVT ESHHLHLYMP AGMAFMAAVT SVVYYHNIET SNFPKLLIAL LVYWTLAFIT KTIKFVKFLD H AIGFSQLR FCLTGLLVIL YGMLLLVEVN VIRVRRYIFF KTPREVKPPE DLQDLGVRFL QPFVNLLSKG TYWWMNAFIK TA HKKPIDL RAIGKLPIAM RALTNYQRLC EAFDAQVRKD IQGTQGARAI WQALSHAFGR RLVLSSTFRI LADLLGFAGP LCI FGIVDH LGKENDVFQP KTQFLGVYFV SSQEFLANAY VLAVLLFLAL LLQRTFLQAS YYVAIETGIN LRGAIQTKIY NKIM HLSTS NLSMGEMTAG QICNLVAIDT NQLMWFFFLC PNLWAMPVQI IVGVILLYYI LGVSALIGAA VIILLAPVQY FVATK LSQA QRSTLEYSNE RLKQTNEMLR GIKLLKLYAW ENIFRTRVET TRRKEMTSLR AFAIYTSISI FMNTAIPIAA VLITFV GHV SFFKEADFSP SVAFASLSLF HILVTPLFLL SSVVRSTVKA LVSVQKLSEF LSSAEIREEQ CAPHEPTPQG PASKYQA VP LRVVNRKRPA REDCRGLTGP LQSLVPSADG DADNCCVQIM GGYFTWTPDG IPTLSNITIR IPRGQLTMIV GQVGCGKS S LLLAALGEMQ KVSGAVFWSS LPDSEIGEDP SPERETATDL DIRKRGPVAY ASQKPWLLNA TVEENIIFES PFNKQRYKM VIEACSLQPD IDILPHGDQT QIGERGINLS GGQRQRISVA RALYQHANVV FLDDPFSALD IHLSDHLMQA GILELLRDDK RTVVLVTHK LQYLPHADWI IAMKDGTIQR EGTLKDFQRS ECQLFEHWKT LMNRQDQELE KETVTERKAT EPPQGLSRAM S SRDGLLQD EEEEEEEAAE SEEDDNLSSM LHQRAEIPWR ACAKYLSSAG ILLLSLLVFS QLLKHMVLVA IDYWLAKWTD SA LTLTPAA RNCSLSQECT LDQTVYAMVF TVLCSLGIVL CLVTSVTVEW TGLKVAKRLH RSLLNRIILA PMRFFETTPL GSI LNRFSS DCNTIDQHIP STLECLSRST LLCVSALAVI SYVTPVFLVA LLPLAIVCYF IQKYFRVASR DLQQLDDTTQ LPLL SHFAE TVEGLTTIRA FRYEARFQQK LLEYTDSNNI ASLFLTAANR WLEVRMEYIG ACVVLIAAVT SISNSLHREL SAGLV GLGL TYALMVSNYL NWMVRNLADM ELQLGAVKRI HGLLKTEAES YEGLLAPSLI PKNWPDQGKI QIQNLSVRYD SSLKPV LKH VNALIAPGQK IGICGRTGSG KSSFSLAFFR MVDTFEGHII IDGIDIAKLP LHTLRSRLSI ILQDPVLFSG TIRFNLD PE RKCSDSTLWE ALEIAQLKLV VKALPGGLDA IITEGGENFS QGQRQLFCLA RAFVRKTSIF IMDEATASID MATENILQ K VVMTAFADRT VVTIAHRVHT ILSADLVIVL KRGAILEFDK PEKLLSRKDS VFASFVRADK

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Macromolecule #3: ADENOSINE-5'-TRIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 3 / Number of copies: 8 / Formula: ATP
Molecular weightTheoretical: 507.181 Da
Chemical component information

ChemComp-ATP:
ADENOSINE-5'-TRIPHOSPHATE / ATP, energy-carrying molecule*YM / Adenosine triphosphate

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Macromolecule #4: ADENOSINE-5'-DIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 4 / Number of copies: 4 / Formula: ADP
Molecular weightTheoretical: 427.201 Da
Chemical component information

ChemComp-ADP:
ADENOSINE-5'-DIPHOSPHATE / ADP, energy-carrying molecule*YM / Adenosine diphosphate

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Macromolecule #5: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 5 / Number of copies: 8 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration0.45 mg/mL
BufferpH: 8.5
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Atmosphere: AIR
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 283 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 1.18 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionSoftware - Name: CTFFIND
Startup modelType of model: INSILICO MODEL / In silico model: ab-initio model from cryoSPARC
Initial angle assignmentType: PROJECTION MATCHING / Software - Name: cryoSPARC
Final angle assignmentType: PROJECTION MATCHING / Software - Name: RELION
Final reconstructionResolution.type: BY AUTHOR / Resolution: 5.6 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION / Number images used: 47282

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