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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-6991 | ||||||||||||
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Title | Structure of the human PKD1/PKD2 complex | ||||||||||||
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![]() | Asymmetric complex / polycystic kidney disease / MEMBRANE PROTEIN | ||||||||||||
Function / homology | ![]() metanephric distal tubule morphogenesis / nitrogen cycle metabolic process / detection of nodal flow / metanephric smooth muscle tissue development / metanephric cortex development / metanephric cortical collecting duct development / metanephric distal tubule development / polycystin complex / mesonephric tubule development / mesonephric duct development ...metanephric distal tubule morphogenesis / nitrogen cycle metabolic process / detection of nodal flow / metanephric smooth muscle tissue development / metanephric cortex development / metanephric cortical collecting duct development / metanephric distal tubule development / polycystin complex / mesonephric tubule development / mesonephric duct development / metanephric part of ureteric bud development / renal tubule morphogenesis / determination of liver left/right asymmetry / HLH domain binding / lung epithelium development / metanephric ascending thin limb development / lymph vessel morphogenesis / metanephric mesenchyme development / metanephric S-shaped body morphogenesis / basal cortex / renal artery morphogenesis / mitocytosis / positive regulation of inositol 1,4,5-trisphosphate-sensitive calcium-release channel activity / metanephric proximal tubule development / calcium-induced calcium release activity / calcium-independent cell-matrix adhesion / Wnt receptor activity / migrasome / cilium organization / VxPx cargo-targeting to cilium / genitalia development / detection of mechanical stimulus / muscle alpha-actinin binding / regulation of calcium ion import / voltage-gated monoatomic ion channel activity / placenta blood vessel development / response to fluid shear stress / cellular response to hydrostatic pressure / Golgi-associated vesicle membrane / cation channel complex / cellular response to fluid shear stress / metanephric collecting duct development / outward rectifier potassium channel activity / actinin binding / cellular response to osmotic stress / non-motile cilium / digestive tract development / determination of left/right symmetry / inorganic cation transmembrane transport / voltage-gated monoatomic cation channel activity / aorta development / cartilage development / neural tube development / motile cilium / voltage-gated sodium channel activity / ciliary membrane / cartilage condensation / branching involved in ureteric bud morphogenesis / protein heterotetramerization / branching morphogenesis of an epithelial tube / skin development / negative regulation of G1/S transition of mitotic cell cycle / spinal cord development / establishment of cell polarity / cytoplasmic side of endoplasmic reticulum membrane / homophilic cell adhesion via plasma membrane adhesion molecules / heart looping / regulation of G1/S transition of mitotic cell cycle / centrosome duplication / voltage-gated potassium channel activity / cell surface receptor signaling pathway via JAK-STAT / anatomical structure morphogenesis / potassium channel activity / lateral plasma membrane / embryonic placenta development / voltage-gated calcium channel activity / regulation of cell adhesion / transcription regulator inhibitor activity / monoatomic cation channel activity / cytoskeletal protein binding / cellular response to cAMP / regulation of proteasomal protein catabolic process / release of sequestered calcium ion into cytosol / potassium ion transmembrane transport / calcium channel complex / sodium ion transmembrane transport / regulation of mitotic spindle organization / cytoplasmic vesicle membrane / cellular response to calcium ion / protein export from nucleus / liver development / basal plasma membrane / cell-matrix adhesion / kidney development / lumenal side of endoplasmic reticulum membrane / cellular response to reactive oxygen species / establishment of localization in cell / phosphoprotein binding / protein tetramerization / calcium ion transmembrane transport Similarity search - Function | ||||||||||||
Biological species | ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.6 Å | ||||||||||||
![]() | Su Q / Hu F / Ge X / Lei J / Yu S / Wang T / Zhou Q / Mei C / Shi Y | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of the human PKD1-PKD2 complex. Authors: Qiang Su / Feizhuo Hu / Xiaofei Ge / Jianlin Lei / Shengqiang Yu / Tingliang Wang / Qiang Zhou / Changlin Mei / Yigong Shi / ![]() Abstract: Mutations in two genes, and , account for most cases of autosomal dominant polycystic kidney disease, one of the most common monogenetic disorders. Here we report the 3.6-angstrom cryo-electron ...Mutations in two genes, and , account for most cases of autosomal dominant polycystic kidney disease, one of the most common monogenetic disorders. Here we report the 3.6-angstrom cryo-electron microscopy structure of truncated human PKD1-PKD2 complex assembled in a 1:3 ratio. PKD1 contains a voltage-gated ion channel (VGIC) fold that interacts with PKD2 to form the domain-swapped, yet noncanonical, transient receptor potential (TRP) channel architecture. The S6 helix in PKD1 is broken in the middle, with the extracellular half, S6a, resembling pore helix 1 in a typical TRP channel. Three positively charged, cavity-facing residues on S6b may block cation permeation. In addition to the VGIC, a five-transmembrane helix domain and a cytosolic PLAT domain were resolved in PKD1. The PKD1-PKD2 complex structure establishes a framework for dissecting the function and disease mechanisms of the PKD proteins. | ||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 58.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 14.5 KB 14.5 KB | Display Display | ![]() |
Images | ![]() | 238.9 KB | ||
Filedesc metadata | ![]() | 6.4 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6a70MC ![]() 6992C C: citing same article ( M: atomic model generated by this map |
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Similar structure data | |
EM raw data | ![]() Data #1: Autopicked particles of PKD1/PKD2 complex [picked particles - multiframe - unprocessed]) |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | None | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.091 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : the structure of an asymmetric complex
Entire | Name: the structure of an asymmetric complex |
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Components |
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-Supramolecule #1: the structure of an asymmetric complex
Supramolecule | Name: the structure of an asymmetric complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all Details: Samples were obtained by co-expression in 293F cells. A complex contains one PKD1 subunit and three PKD2 subunits. |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 310 KDa |
-Macromolecule #1: Polycystin-2
Macromolecule | Name: Polycystin-2 / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 66.623406 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MGSAGWSHPQ FEKGGGSGGG SGGSAWSHPQ FEKGSAAAPR VAWAERLVRG LRGLWGTRLM EESSTNREKY LKSVLRELVT YLLFLIVLC ILTYGMMSSN VYYYTRMMSQ LFLDTPVSKT EKTNFKTLSS MEDFWKFTEG SLLDGLYWKM QPSNQTEADN R SFIFYENL ...String: MGSAGWSHPQ FEKGGGSGGG SGGSAWSHPQ FEKGSAAAPR VAWAERLVRG LRGLWGTRLM EESSTNREKY LKSVLRELVT YLLFLIVLC ILTYGMMSSN VYYYTRMMSQ LFLDTPVSKT EKTNFKTLSS MEDFWKFTEG SLLDGLYWKM QPSNQTEADN R SFIFYENL LLGVPRIRQL RVRNGSCSIP QDLRDEIKEC YDVYSVSSED RAPFGPRNGT AWIYTSEKDL NGSSHWGIIA TY SGAGYYL DLSRTREETA AQVASLKKNV WLDRGTRATF IDFSVYNANI NLFCVVRLLV EFPATGGVIP SWQFQPLKLI RYV TTFDFF LAACEIIFCF FIFYYVVEEI LEIRIHKLHY FRSFWNCLDV VIVVLSVVAI GINIYRTSNV EVLLQFLEDQ NTFP NFEHL AYWQIQFNNI AAVTVFFVWI KLFKFINFNR TMSQLSTTMS RCAKDLFGFA IMFFIIFLAY AQLAYLVFGT QVDDF STFQ ECIFTQFRII LGDINFAEIE EANRVLGPIY FTTFVFFMFF ILLNMFLAII NDTYSEVKSD LAQQKAEMEL SDLIRK GYH KALVKLKLKK NTVD UniProtKB: Polycystin-2 |
-Macromolecule #2: Polycystin-1
Macromolecule | Name: Polycystin-1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 127.024836 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MGSAGDYKDH DGDYKDHDID YKDDDDKGSA AATAFGASLF VPPSHVRFVF PEPTADVNYI VMLTCAVCLV TYMVMAAILH KLDQLDASR GRAIPFCGQR GRFKYEILVK TGWGRGSGTT AHVGIMLYGV DSRSGHRHLD GDRAFHRNSL DIFRIATPHS L GSVWKIRV ...String: MGSAGDYKDH DGDYKDHDID YKDDDDKGSA AATAFGASLF VPPSHVRFVF PEPTADVNYI VMLTCAVCLV TYMVMAAILH KLDQLDASR GRAIPFCGQR GRFKYEILVK TGWGRGSGTT AHVGIMLYGV DSRSGHRHLD GDRAFHRNSL DIFRIATPHS L GSVWKIRV WHDNKGLSPA WFLQHVIVRD LQTARSAFFL VNDWLSVETE ANGGLVEKEV LAASDAALLR FRRLLVAELQ RG FFDKHIW LSIWDRPPRS RFTRIQRATC CVLLICLFLG ANAVWYGAVG DSAYSTGHVS RLSPLSVDTV AVGLVSSVVV YPV YLAILF LFRMSRSKVA GSPSPTPAGQ QVLDIDSCLD SSVLDSSFLT FSGLHAEQAF VGQMKSDLFL DDSKSLVCWP SGEG TLSWP DLLSDPSIVG SNLRQLARGQ AGHGLGPEED GFSLASPYSP AKSFSASDED LIQQVLAEGV SSPAPTQDTH METDL LSSL SSTPGEKTET LALQRLGELG PPSPGLNWEQ PQAARLSRTG LVEGLRKRLL PAWCASLAHG LSLLLVAVAV AVSGWV GAS FPPGVSVAWL LSSSASFLAS FLGWEPLKVL LEALYFSLVA KRLHPDEDDT LVESPAVTPV SARVPRVRPP HGFALFL AK EEARKVKRLH GMLRSLLVYM LFLLVTLLAS YGDASCHGHA YRLQSAIKQE LHSRAFLAIT RSEELWPWMA HVLLPYVH G NQSSPELGPP RLRQVRLQEA LYPDPPGPRV HTCSAAGGFS TSDYDVGWES PHNGSGTWAY SAPDLLGAWS WGSCAVYDS GGYVQELGLS LEESRDRLRF LQLHNWLDNR SRAVFLELTR YSPAVGLHAA VTLRLEFPAA GRALAALSVR PFALRRLSAG LSLPLLTSV CLLLFAVHFA VAEARTWHRE GRWRVLRLGA WARWLLVALT AATALVRLAQ LGAADRQWTR FVRGRPRRFT S FDQVAQLS SAARGLAASL LFLLLVKAAQ QLRFVRQWSV FGKTLCRALP ELLGVTLGLV VLGVAYAQLA ILLVSSCVDS LW SVAQALL VLCPGTGLST LCPAESWHLS PLLCVGLWAL RLWGALRLGA VILRWRYHAL RGELYRPAWE PQDYEMVELF LRR LRLWMG LSKVKEFRHK VRFEGMEPLP SRSSRGS UniProtKB: Polycystin-1 |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 10 mg/mL | ||||||||||||
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Buffer | pH: 7.5 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: CARBON / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 281 K / Instrument: FEI VITROBOT MARK IV | ||||||||||||
Details | This sample was monodisperse. |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: DARK FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 27296 |
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: ANGULAR RECONSTITUTION |