+Open data
-Basic information
Entry | Database: PDB / ID: 5fn2 | ||||||
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Title | Cryo-EM structure of gamma secretase in complex with a drug DAPT | ||||||
Components |
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Keywords | HYDROLASE | ||||||
Function / homology | Function and homology information Cajal-Retzius cell differentiation / positive regulation of L-glutamate import across plasma membrane / amyloid precursor protein biosynthetic process / positive regulation of coagulation / protein catabolic process at postsynapse / negative regulation of core promoter binding / gamma-secretase complex / aspartic endopeptidase activity, intramembrane cleaving / short-term synaptic potentiation / positive regulation of amyloid precursor protein biosynthetic process ...Cajal-Retzius cell differentiation / positive regulation of L-glutamate import across plasma membrane / amyloid precursor protein biosynthetic process / positive regulation of coagulation / protein catabolic process at postsynapse / negative regulation of core promoter binding / gamma-secretase complex / aspartic endopeptidase activity, intramembrane cleaving / short-term synaptic potentiation / positive regulation of amyloid precursor protein biosynthetic process / Noncanonical activation of NOTCH3 / positive regulation of endopeptidase activity / choline transport / sequestering of calcium ion / Notch receptor processing / central nervous system myelination / synaptic vesicle targeting / membrane protein intracellular domain proteolysis / negative regulation of axonogenesis / regulation of resting membrane potential / T cell activation involved in immune response / NOTCH4 Activation and Transmission of Signal to the Nucleus / skin morphogenesis / growth factor receptor binding / neural retina development / dorsal/ventral neural tube patterning / regulation of synaptic vesicle cycle / L-glutamate import across plasma membrane / myeloid dendritic cell differentiation / Regulated proteolysis of p75NTR / regulation of phosphorylation / metanephros development / locomotion / brain morphogenesis / glutamate receptor signaling pathway / endoplasmic reticulum calcium ion homeostasis / nuclear outer membrane / smooth endoplasmic reticulum calcium ion homeostasis / amyloid precursor protein metabolic process / astrocyte activation involved in immune response / regulation of canonical Wnt signaling pathway / aggresome / regulation of long-term synaptic potentiation / embryonic limb morphogenesis / skeletal system morphogenesis / cell fate specification / regulation of postsynapse organization / ciliary rootlet / myeloid cell homeostasis / azurophil granule membrane / dopamine receptor signaling pathway / Hydrolases; Acting on peptide bonds (peptidases); Aspartic endopeptidases / Golgi cisterna membrane / positive regulation of amyloid fibril formation / adult behavior / positive regulation of receptor recycling / positive regulation of dendritic spine development / mitochondrial transport / positive regulation of catalytic activity / regulation of neuron projection development / heart looping / blood vessel development / cerebral cortex cell migration / smooth endoplasmic reticulum / amyloid precursor protein catabolic process / protein glycosylation / amyloid-beta formation / negative regulation of apoptotic signaling pathway / autophagosome assembly / membrane protein ectodomain proteolysis / endopeptidase activator activity / EPH-ephrin mediated repulsion of cells / neuron development / rough endoplasmic reticulum / hematopoietic progenitor cell differentiation / somitogenesis / amyloid-beta metabolic process / T cell proliferation / Nuclear signaling by ERBB4 / negative regulation of ubiquitin-dependent protein catabolic process / Notch signaling pathway / regulation of synaptic transmission, glutamatergic / NOTCH2 Activation and Transmission of Signal to the Nucleus / cellular response to calcium ion / neuron projection maintenance / Degradation of the extracellular matrix / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus / cerebellum development / positive regulation of glycolytic process / post-embryonic development / thymus development / dendritic shaft / negative regulation of protein phosphorylation / epithelial cell proliferation / NOTCH3 Activation and Transmission of Signal to the Nucleus / PDZ domain binding / astrocyte activation / apoptotic signaling pathway / synapse organization Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.2 Å | ||||||
Authors | Bai, X.C. / Rajendra, E. / Yang, G.H. / Shi, Y.G. / Scheres, S.H.W. | ||||||
Citation | Journal: Elife / Year: 2015 Title: Sampling the conformational space of the catalytic subunit of human γ-secretase. Authors: Xiao-chen Bai / Eeson Rajendra / Guanghui Yang / Yigong Shi / Sjors H W Scheres / Abstract: Human γ-secretase is an intra-membrane protease that cleaves many different substrates. Aberrant cleavage of Notch is implicated in cancer, while abnormalities in cutting amyloid precursor protein ...Human γ-secretase is an intra-membrane protease that cleaves many different substrates. Aberrant cleavage of Notch is implicated in cancer, while abnormalities in cutting amyloid precursor protein lead to Alzheimer's disease. Our previous cryo-EM structure of γ-secretase revealed considerable disorder in its catalytic subunit presenilin. Here, we describe an image classification procedure that characterizes molecular plasticity at the secondary structure level, and apply this method to identify three distinct conformations in our previous sample. In one of these conformations, an additional transmembrane helix is visible that cannot be attributed to the known components of γ-secretase. In addition, we present a γ-secretase structure in complex with the dipeptidic inhibitor N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester (DAPT). Our results reveal how conformational mobility in the second and sixth transmembrane helices of presenilin is greatly reduced upon binding of DAPT or the additional helix, and form the basis for a new model of how substrate enters the transmembrane domain. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 5fn2.cif.gz | 261.2 KB | Display | PDBx/mmCIF format |
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PDB format | pdb5fn2.ent.gz | 212.7 KB | Display | PDB format |
PDBx/mmJSON format | 5fn2.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/fn/5fn2 ftp://data.pdbj.org/pub/pdb/validation_reports/fn/5fn2 | HTTPS FTP |
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-Related structure data
Related structure data | 3237MC 3238C 3239C 3240C 5fn3C 5fn4C 5fn5C C: citing same article (ref.) M: map data used to model this data |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 78483.570 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: A DRUG DAPT WAS BOUND TO GAMMA SECRETASE COMPLEX / Source: (gene. exp.) Homo sapiens (human) / Cell line: HEK293F / Gene: NCSTN, KIAA0253, UNQ1874/PRO4317 / Plasmid: PMLINK / Production host: HOMO SAPIENS (human) / References: UniProt: Q92542 |
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#2: Protein | Mass: 52651.465 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: A DRUG DAPT WAS BOUND TO GAMMA SECRETASE COMPLEX / Source: (gene. exp.) Homo sapiens (human) / Cell line: HEK293F / Gene: PSEN1, AD3, PS1, PSNL1 / Plasmid: PMLINK / Production host: HOMO SAPIENS (human) References: UniProt: P49768, Hydrolases; Acting on peptide bonds (peptidases); Aspartic endopeptidases |
#3: Protein | Mass: 29017.943 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: A DRUG DAPT WAS BOUND TO GAMMA SECRETASE COMPLEX / Source: (gene. exp.) Homo sapiens (human) / Cell line: HEK293F / Gene: APH1A, PSF, CGI-78, UNQ579/PRO1141 / Plasmid: PMLINK / Production host: HOMO SAPIENS (human) / References: UniProt: Q96BI3 |
#4: Protein | Mass: 12038.029 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: A DRUG DAPT WAS BOUND TO GAMMA SECRETASE COMPLEX / Source: (gene. exp.) Homo sapiens (human) / Cell line: HEK293F / Gene: PSENEN, PEN2, MDS033 / Plasmid: PMLINK / Production host: HOMO SAPIENS (human) / References: UniProt: Q9NZ42 |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: GAMMA SECRETASE / Type: COMPLEX |
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Buffer solution | Name: 25 MM HEPES, PH 7.4, 150 MM NACL AND AMPHIPOL A8-35 / pH: 7.4 Details: 25 MM HEPES, PH 7.4, 150 MM NACL AND AMPHIPOL A8-35 |
Specimen | Conc.: 6 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: HOLEY CARBON |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Details: LIQUID ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS / Date: Dec 31, 2014 |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy / Nominal magnification: 81000 X / Calibrated magnification: 35714 X / Nominal defocus max: 2700 nm / Nominal defocus min: 800 nm / Cs: 2 mm |
Specimen holder | Temperature: 85 K |
Image recording | Electron dose: 38 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k) |
Image scans | Num. digital images: 2000 |
-Processing
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
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3D reconstruction | Resolution: 4.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 51366 / Refinement type: HALF-MAPS REFINED INDEPENDENTLY / Symmetry type: POINT | ||||||||||||
Refinement | Highest resolution: 4.2 Å | ||||||||||||
Refinement step | Cycle: LAST / Highest resolution: 4.2 Å
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