+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-22120 | |||||||||
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Title | Structure of human SMO-Gi complex with 24(S),25-EC | |||||||||
Map data | Structure of human SMO-Gi complex with 24(S),25-EC | |||||||||
Sample |
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Keywords | GPCR / MEMBRANE PROTEIN | |||||||||
Function / homology | Function and homology information ventral midline determination / mesenchymal to epithelial transition involved in metanephric renal vesicle formation / regulation of heart morphogenesis / contact inhibition / negative regulation of hair follicle development / central nervous system neuron differentiation / 9+0 non-motile cilium / pancreas morphogenesis / regulation of somatic stem cell population maintenance / epithelial-mesenchymal cell signaling ...ventral midline determination / mesenchymal to epithelial transition involved in metanephric renal vesicle formation / regulation of heart morphogenesis / contact inhibition / negative regulation of hair follicle development / central nervous system neuron differentiation / 9+0 non-motile cilium / pancreas morphogenesis / regulation of somatic stem cell population maintenance / epithelial-mesenchymal cell signaling / myoblast migration / atrial septum morphogenesis / spinal cord dorsal/ventral patterning / determination of left/right asymmetry in lateral mesoderm / Activation of SMO / left/right axis specification / ciliary tip / somite development / patched binding / forebrain morphogenesis / type B pancreatic cell development / positive regulation of branching involved in ureteric bud morphogenesis / thalamus development / positive regulation of organ growth / BBSome-mediated cargo-targeting to cilium / cellular response to cholesterol / dorsal/ventral neural tube patterning / smooth muscle tissue development / pattern specification process / cerebellar cortex morphogenesis / mammary gland epithelial cell differentiation / dentate gyrus development / dopaminergic neuron differentiation / oxysterol binding / commissural neuron axon guidance / positive regulation of multicellular organism growth / positive regulation of smoothened signaling pathway / Hedgehog 'off' state / Class B/2 (Secretin family receptors) / cell fate specification / neural crest cell migration / cAMP-dependent protein kinase inhibitor activity / anterior/posterior pattern specification / ciliary membrane / positive regulation of mesenchymal cell proliferation / midgut development / negative regulation of epithelial cell differentiation / hair follicle morphogenesis / smoothened signaling pathway / positive regulation of neuroblast proliferation / heart looping / negative regulation of DNA binding / odontogenesis of dentin-containing tooth / protein kinase A catalytic subunit binding / endoplasmic reticulum-Golgi intermediate compartment / neuroblast proliferation / T cell migration / Adenylate cyclase inhibitory pathway / vasculogenesis / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / skeletal muscle fiber development / homeostasis of number of cells within a tissue / regulation of mitotic spindle organization / cellular response to forskolin / protein sequestering activity / centriole / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / positive regulation of epithelial cell proliferation / epithelial cell proliferation / negative regulation of protein phosphorylation / central nervous system development / Regulation of insulin secretion / G protein-coupled receptor binding / astrocyte activation / G protein-coupled receptor activity / Hedgehog 'on' state / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / multicellular organism growth / Activation of the phototransduction cascade / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Glucagon signaling in metabolic regulation / G protein-coupled acetylcholine receptor signaling pathway / G-protein activation / cilium / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / cerebral cortex development / G beta:gamma signalling through CDC42 / response to peptide hormone / Vasopressin regulates renal water homeostasis via Aquaporins / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / Mus musculus (house mouse) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.14 Å | |||||||||
Authors | Qi X / Long T | |||||||||
Citation | Journal: Nat Chem Biol / Year: 2020 Title: Sterols in an intramolecular channel of Smoothened mediate Hedgehog signaling. Authors: Xiaofeng Qi / Lucas Friedberg / Ryan De Bose-Boyd / Tao Long / Xiaochun Li / Abstract: Smoothened (SMO), a class Frizzled G protein-coupled receptor (class F GPCR), transduces the Hedgehog signal across the cell membrane. Sterols can bind to its extracellular cysteine-rich domain ...Smoothened (SMO), a class Frizzled G protein-coupled receptor (class F GPCR), transduces the Hedgehog signal across the cell membrane. Sterols can bind to its extracellular cysteine-rich domain (CRD) and to several sites in the seven transmembrane helices (7-TMs) of SMO. However, the mechanism by which sterols regulate SMO via multiple sites is unknown. Here we determined the structures of SMO-G complexes bound to the synthetic SMO agonist (SAG) and to 24(S),25-epoxycholesterol (24(S),25-EC). A novel sterol-binding site in the extracellular extension of TM6 was revealed to connect other sites in 7-TMs and CRD, forming an intramolecular sterol channel from the middle side of 7-TMs to CRD. Additional structures of two gain-of-function variants, SMO and SMO, showed that blocking the channel at its midpoints allows sterols to occupy the binding sites in 7-TMs, thereby activating SMO. These data indicate that sterol transport through the core of SMO is a major regulator of SMO-mediated signaling. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_22120.map.gz | 76.6 MB | EMDB map data format | |
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Header (meta data) | emd-22120-v30.xml emd-22120.xml | 18.8 KB 18.8 KB | Display Display | EMDB header |
Images | emd_22120.png | 39.7 KB | ||
Masks | emd_22120_msk_1.map | 83.7 MB | Mask map | |
Filedesc metadata | emd-22120.cif.gz | 6.3 KB | ||
Others | emd_22120_half_map_1.map.gz emd_22120_half_map_2.map.gz | 65.3 MB 65.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-22120 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-22120 | HTTPS FTP |
-Validation report
Summary document | emd_22120_validation.pdf.gz | 863 KB | Display | EMDB validaton report |
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Full document | emd_22120_full_validation.pdf.gz | 862.5 KB | Display | |
Data in XML | emd_22120_validation.xml.gz | 12.6 KB | Display | |
Data in CIF | emd_22120_validation.cif.gz | 14.9 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-22120 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-22120 | HTTPS FTP |
-Related structure data
Related structure data | 6xbmMC 6xbjC 6xbkC 6xblC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_22120.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Structure of human SMO-Gi complex with 24(S),25-EC | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.832 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_22120_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: Structure of human SMO-Gi complex with 24(S),25-EC
File | emd_22120_half_map_1.map | ||||||||||||
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Annotation | Structure of human SMO-Gi complex with 24(S),25-EC | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Structure of human SMO-Gi complex with 24(S),25-EC
File | emd_22120_half_map_2.map | ||||||||||||
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Annotation | Structure of human SMO-Gi complex with 24(S),25-EC | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : SMO-GI COMPLEX
Entire | Name: SMO-GI COMPLEX |
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Components |
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-Supramolecule #1: SMO-GI COMPLEX
Supramolecule | Name: SMO-GI COMPLEX / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Smoothened homolog
Macromolecule | Name: Smoothened homolog / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 71.786438 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MAAARPARGP ELPLLGLLLL LLLGDPGRGA ASSGNATGPG PRSAGGSARR SAAVTGPPPP LSHCGRAAPC EPLRYNVCLG SVLPYGATS TLLAGDSDSQ EEAHGKLVLW SGLRNAPRCW AVIQPLLCAV YMPKCENDRV ELPSRTLCQA TRGPCAIVER E RGWPDFLR ...String: MAAARPARGP ELPLLGLLLL LLLGDPGRGA ASSGNATGPG PRSAGGSARR SAAVTGPPPP LSHCGRAAPC EPLRYNVCLG SVLPYGATS TLLAGDSDSQ EEAHGKLVLW SGLRNAPRCW AVIQPLLCAV YMPKCENDRV ELPSRTLCQA TRGPCAIVER E RGWPDFLR CTPDRFPEGC TNEVQNIKFN SSGQCEVPLV RTDNPKSWYE DVEGCGIQCQ NPLFTEAEHQ DMHSYIAAFG AV TGLCTLF TLATFVADWR NSNRYPAVIL FYVNACFFVG SIGWLAQFMD GARREIVCRA DGTMRLGEPT SNETLSCVII FVI VYYALM AGVVWFVVLT YAWHTSFKAL GTTYQPLSGK TSYFHLLTWS LPFVLTVAIL AVAQVDGDSV SGICFVGYKN YRYR AGFVL APIGLVLIVG GYFLIRGVMT LFSIKSNHPG LLSEKAASKI NETMLRLGIF GFLAFGFVLI TFSCHFYDFF NQAEW ERSF RDYVLCQANV TIGLPTKQPI PDCEIKNRPS LLVEKINLFA MFGTGIAMST WVWTKATLLI WRRTWCRLTG QSDDEP KRI KKSKMIAKAF SKRHELLQNP GQELSFSMHT VSHDGPVAGL AFDLNEPSAD VSSAWAQHVT KMVARRGAIL PQDISVT PV ATDYKDDDDK UniProtKB: Protein smoothened |
-Macromolecule #2: Guanine nucleotide-binding protein G(i) subunit alpha-1
Macromolecule | Name: Guanine nucleotide-binding protein G(i) subunit alpha-1 type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 40.415031 KDa |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
Sequence | String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGGQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHESM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCA TDTKNVQFVF DAVTDVIIKN NLKDCGLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 37.671102 KDa |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
Sequence | String: PGSSGSELDQ LRQEAEQLKN QIRDARKACA DATLSQITNN IDPVGRIQMR TRRTLRGHLA KIYAMHWGTD SRLLVSASQD GKLIIWDSY TTNKVHAIPL RSSWVMTCAY APSGNYVACG GLDNICSIYN LKTREGNVRV SRELAGHTGY LSCCRFLDDN Q IVTSSGDT ...String: PGSSGSELDQ LRQEAEQLKN QIRDARKACA DATLSQITNN IDPVGRIQMR TRRTLRGHLA KIYAMHWGTD SRLLVSASQD GKLIIWDSY TTNKVHAIPL RSSWVMTCAY APSGNYVACG GLDNICSIYN LKTREGNVRV SRELAGHTGY LSCCRFLDDN Q IVTSSGDT TCALWDIETG QQTTTFTGHT GDVMSLSLAP DTRLFVSGAC DASAKLWDVR EGMCRQTFTG HESDINAICF FP NGNAFAT GSDDATCRLF DLRADQELMT YSHDNIICGI TSVSFSKSGR LLLAGYDDFN CNVWDALKAD RAGVLAGHDN RVS CLGVTD DGMAVATGSW DSFLKIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 7.861143 KDa |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #5: scFv16
Macromolecule | Name: scFv16 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Mus musculus (house mouse) |
Molecular weight | Theoretical: 27.784896 KDa |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
Sequence | String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KAAAHHHHHH HH |
-Macromolecule #6: 17-[3-(3,3-DIMETHYL-OXIRANYL)-1-METHYL-PROPYL]-10,13-DIMETHYL-2,3...
Macromolecule | Name: 17-[3-(3,3-DIMETHYL-OXIRANYL)-1-METHYL-PROPYL]-10,13-DIMETHYL-2,3,4,7,8,9,10,11,12,13,14,15,16,17-TETRADECAHYDRO-1H-CYC LOPENTA[A]PHENANTHREN-3-OL type: ligand / ID: 6 / Number of copies: 2 / Formula: CO1 |
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Molecular weight | Theoretical: 400.637 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: DARK FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: EMDB MAP |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.14 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 443107 |
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: ANGULAR RECONSTITUTION |