+Open data
-Basic information
Entry | Database: PDB / ID: 7y5z | ||||||
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Title | CryoEM structure of human PS2-containing gamma-secretase | ||||||
Components |
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Keywords | MEMBRANE PROTEIN/HYDROLASE / Intramembrane protease / gamma-secretase / presenilin-2 / MEMBRANE PROTEIN / MEMBRANE PROTEIN-HYDROLASE complex | ||||||
Function / homology | Function and homology information regulation of calcium import into the mitochondrion / : / amyloid precursor protein biosynthetic process / gamma-secretase complex / aspartic endopeptidase activity, intramembrane cleaving / short-term synaptic potentiation / positive regulation of amyloid precursor protein biosynthetic process / positive regulation of endopeptidase activity / Noncanonical activation of NOTCH3 / Notch receptor processing ...regulation of calcium import into the mitochondrion / : / amyloid precursor protein biosynthetic process / gamma-secretase complex / aspartic endopeptidase activity, intramembrane cleaving / short-term synaptic potentiation / positive regulation of amyloid precursor protein biosynthetic process / positive regulation of endopeptidase activity / Noncanonical activation of NOTCH3 / Notch receptor processing / central nervous system myelination / membrane protein intracellular domain proteolysis / NOTCH4 Activation and Transmission of Signal to the Nucleus / growth factor receptor binding / Regulated proteolysis of p75NTR / metanephros development / glutamate receptor signaling pathway / amyloid precursor protein metabolic process / regulation of long-term synaptic potentiation / nuclear inner membrane / myeloid cell homeostasis / ciliary rootlet / azurophil granule membrane / G protein-coupled dopamine receptor signaling pathway / Hydrolases; Acting on peptide bonds (peptidases); Aspartic endopeptidases / mitochondrion-endoplasmic reticulum membrane tethering / positive regulation of catalytic activity / Golgi cisterna membrane / adult behavior / plasma membrane => GO:0005886 / amyloid precursor protein catabolic process / amyloid-beta formation / membrane protein ectodomain proteolysis / endopeptidase activator activity / EPH-ephrin mediated repulsion of cells / amyloid-beta metabolic process / T cell proliferation / Nuclear signaling by ERBB4 / epithelial cell proliferation / Notch signaling pathway / NOTCH2 Activation and Transmission of Signal to the Nucleus / cellular response to calcium ion / NOTCH3 Activation and Transmission of Signal to the Nucleus / Degradation of the extracellular matrix / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus / cerebellum development / dendritic shaft / neuromuscular junction / protein processing / sarcolemma / kinetochore / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Z disc / calcium ion transport / melanosome / synaptic vesicle / ATPase binding / presynaptic membrane / protein-macromolecule adaptor activity / cell cortex / endopeptidase activity / growth cone / neuron apoptotic process / learning or memory / endosome membrane / early endosome / response to hypoxia / mitochondrial inner membrane / intracellular signal transduction / apical plasma membrane / membrane raft / Amyloid fiber formation / Golgi membrane / lysosomal membrane / focal adhesion / centrosome / neuronal cell body / endoplasmic reticulum membrane / Neutrophil degranulation / negative regulation of apoptotic process / perinuclear region of cytoplasm / enzyme binding / cell surface / Golgi apparatus / endoplasmic reticulum / protein-containing complex / proteolysis / extracellular exosome / membrane / nucleus / plasma membrane Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||
Authors | Guo, X. / Wang, Y. / Zhou, J. / Jin, C. / Wang, J. / Jia, B. / Jing, D. / Yan, C. / Lei, J. / Zhou, R. / Shi, Y. | ||||||
Funding support | China, 1items
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Citation | Journal: Nat Commun / Year: 2022 Title: Molecular basis for isoform-selective inhibition of presenilin-1 by MRK-560. Authors: Xuefei Guo / Yumeng Wang / Jiayao Zhou / Chen Jin / Jiaoni Wang / Bojun Jia / Dan Jing / Chuangye Yan / Jianlin Lei / Rui Zhou / Yigong Shi / Abstract: Inhibition of γ-secretase activity represents a potential therapeutic strategy for Alzheimer's disease (AD). MRK-560 is a selective inhibitor with higher potency for Presenilin 1 (PS1) than for PS2, ...Inhibition of γ-secretase activity represents a potential therapeutic strategy for Alzheimer's disease (AD). MRK-560 is a selective inhibitor with higher potency for Presenilin 1 (PS1) than for PS2, the two isoforms of the catalytic subunit of γ-secretase, although the underlying mechanism remains elusive. Here we report the cryo-electron microscopy (cryo-EM) structures of PS1 and PS2-containing γ-secretase complexes with and without MRK-560 at overall resolutions of 2.9-3.4 Å. MRK-560 occupies the substrate binding site of PS1, but is invisible in PS2. Structural comparison identifies Thr281 and Leu282 in PS1 to be the determinant for isoform-dependent sensitivity to MRK-560, which is confirmed by swapping experiment between PS1 and PS2. By revealing the mechanism for isoform-selective inhibition of presenilin, our work may facilitate future drug discovery targeting γ-secretase. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7y5z.cif.gz | 232.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7y5z.ent.gz | 186.8 KB | Display | PDB format |
PDBx/mmJSON format | 7y5z.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/y5/7y5z ftp://data.pdbj.org/pub/pdb/validation_reports/y5/7y5z | HTTPS FTP |
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-Related structure data
Related structure data | 33629MC 7y5tC 7y5xC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Protein , 2 types, 2 molecules AB
#1: Protein | Mass: 78483.570 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: NCSTN, KIAA0253, UNQ1874/PRO4317 / Production host: Homo sapiens (human) / References: UniProt: Q92542 |
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#2: Protein | Mass: 50172.035 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSEN2, AD4, PS2, PSNL2, STM2 / Production host: Homo sapiens (human) References: UniProt: P49810, Hydrolases; Acting on peptide bonds (peptidases); Aspartic endopeptidases |
-Gamma-secretase subunit ... , 2 types, 2 molecules CD
#3: Protein | Mass: 29017.943 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: APH1A, PSF, CGI-78, UNQ579/PRO1141,UNQ1874/PRO4317 / Production host: Homo sapiens (human) / References: UniProt: Q96BI3 |
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#4: Protein | Mass: 12038.029 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSENEN, PEN2, MDS033 / Production host: Homo sapiens (human) / References: UniProt: Q9NZ42 |
-Sugars , 3 types, 12 molecules
#5: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #6: Polysaccharide | beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | Source method: isolated from a genetically manipulated source #7: Sugar | ChemComp-NAG / |
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-Non-polymers , 2 types, 4 molecules
#8: Chemical | ChemComp-PC1 / |
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#9: Chemical |
-Details
Has ligand of interest | N |
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-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: Human PS2-containing gamma-secretase / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Homo sapiens (human) |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1500 nm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.12_2829: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 163958 / Symmetry type: POINT | ||||||||||||||||||||||||
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