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Open data
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Basic information
Entry | Database: PDB / ID: 4uis | ||||||
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Title | The cryoEM structure of human gamma-Secretase complex | ||||||
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![]() | HYDROLASE / GAMMA-SECRETASE | ||||||
Function / homology | ![]() Cajal-Retzius cell differentiation / positive regulation of L-glutamate import across plasma membrane / amyloid precursor protein biosynthetic process / 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 / smooth endoplasmic reticulum calcium ion homeostasis / Noncanonical activation of NOTCH3 ...Cajal-Retzius cell differentiation / positive regulation of L-glutamate import across plasma membrane / amyloid precursor protein biosynthetic process / 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 / smooth endoplasmic reticulum calcium ion homeostasis / Noncanonical activation of NOTCH3 / protein catabolic process at postsynapse / TGFBR3 PTM regulation / sequestering of calcium ion / Notch receptor processing / synaptic vesicle targeting / positive regulation of coagulation / central nervous system myelination / negative regulation of axonogenesis / membrane protein intracellular domain proteolysis / skin morphogenesis / T cell activation involved in immune response / choline transport / NOTCH4 Activation and Transmission of Signal to the Nucleus / dorsal/ventral neural tube patterning / ciliary rootlet / neural retina development / regulation of resting membrane potential / L-glutamate import across plasma membrane / Regulated proteolysis of p75NTR / regulation of phosphorylation / myeloid dendritic cell differentiation / endoplasmic reticulum calcium ion homeostasis / brain morphogenesis / locomotion / amyloid precursor protein metabolic process / regulation of synaptic vesicle cycle / regulation of long-term synaptic potentiation / regulation of postsynapse organization / cell fate specification / astrocyte activation involved in immune response / embryonic limb morphogenesis / regulation of canonical Wnt signaling pathway / myeloid cell homeostasis / aggresome / growth factor receptor binding / skeletal system morphogenesis / Hydrolases; Acting on peptide bonds (peptidases); Aspartic endopeptidases / azurophil granule membrane / G protein-coupled dopamine receptor signaling pathway / glutamate receptor signaling pathway / positive regulation of amyloid fibril formation / : / blood vessel development / mitochondrial transport / amyloid-beta formation / amyloid precursor protein catabolic process / heart looping / positive regulation of dendritic spine development / regulation of neuron projection development / positive regulation of receptor recycling / cerebral cortex cell migration / adult behavior / smooth endoplasmic reticulum / nuclear outer membrane / membrane protein ectodomain proteolysis / negative regulation of apoptotic signaling pathway / EPH-ephrin mediated repulsion of cells / negative regulation of ubiquitin-dependent protein catabolic process / autophagosome assembly / endopeptidase activator activity / neuron development / somitogenesis / NOTCH2 Activation and Transmission of Signal to the Nucleus / T cell proliferation / hematopoietic progenitor cell differentiation / regulation of synaptic transmission, glutamatergic / Nuclear signaling by ERBB4 / viral release from host cell by cytolysis / calcium ion homeostasis / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus / rough endoplasmic reticulum / Notch signaling pathway / Degradation of the extracellular matrix / peptidoglycan catabolic process / neuron projection maintenance / astrocyte activation / NOTCH3 Activation and Transmission of Signal to the Nucleus / cellular response to calcium ion / cerebellum development / thymus development / positive regulation of glycolytic process / epithelial cell proliferation / dendritic shaft / post-embryonic development / PDZ domain binding / neuromuscular junction / apoptotic signaling pathway / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.4 Å | ||||||
![]() | Sun, L. / Zhao, L. / Yang, G. / Yan, C. / Zhou, R. / Zhou, X. / Xie, T. / Zhao, Y. / Wu, S. / Li, X. / Shi, Y. | ||||||
![]() | ![]() Title: Structural basis of human γ-secretase assembly. Authors: Linfeng Sun / Lingyun Zhao / Guanghui Yang / Chuangye Yan / Rui Zhou / Xiaoyuan Zhou / Tian Xie / Yanyu Zhao / Shenjie Wu / Xueming Li / Yigong Shi / ![]() Abstract: The four-component intramembrane protease γ-secretase is intricately linked to the development of Alzheimer's disease. Despite recent structural advances, the transmembrane segments (TMs) of γ- ...The four-component intramembrane protease γ-secretase is intricately linked to the development of Alzheimer's disease. Despite recent structural advances, the transmembrane segments (TMs) of γ-secretase remain to be specifically assigned. Here we report a 3D structure of human γ-secretase at 4.32-Å resolution, determined by single-particle, electron cryomicroscopy in the presence of digitonin and with a T4 lysozyme fused to the amino terminus of presenilin 1 (PS1). The overall structure of this human γ-secretase is very similar to that of wild-type γ-secretase determined in the presence of amphipols. The 20 TMs are unambiguously assigned to the four components, revealing principles of subunit assembly. Within the transmembrane region, PS1 is centrally located, with its amino-terminal fragment (NTF) packing against Pen-2 and its carboxyl-terminal fragment (CTF) interacting with Aph-1. The only TM of nicastrin associates with Aph-1 at the thick end of the TM horseshoe, and the extracellular domain of nicastrin directly binds Pen-2 at the thin end. TM6 and TM7 in PS1, which harbor the catalytic aspartate residues, are located on the convex side of the TM horseshoe. This structure serves as an important framework for understanding the function and mechanism of γ-secretase. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 286.4 KB | Display | ![]() |
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PDB format | ![]() | 230.5 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 897.9 KB | Display | ![]() |
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Full document | ![]() | 932.5 KB | Display | |
Data in XML | ![]() | 35.5 KB | Display | |
Data in CIF | ![]() | 55.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
#1: Protein | Mass: 63331.977 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#2: Protein | Mass: 23547.639 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#3: Protein | Mass: 16698.539 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#4: Protein | Mass: 5294.518 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#5: Protein | Mass: 18435.207 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: A0A097J809, UniProt: D9IEF7*PLUS, lysozyme |
Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: T4-LYSOZYME FUSION GAMMA- SECRETASE / Type: COMPLEX |
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Buffer solution | Name: 0.1% DIGITONIN, 25 MM HEPES, PH 7.4, AND 150 MM NACL. / pH: 7.4 Details: 0.1% DIGITONIN, 25 MM HEPES, PH 7.4, AND 150 MM NACL. |
Specimen | Conc.: 4.2 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: VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 100, TEMPERATURE- 277, INSTRUMENT- FEI VITROBOT MARK IV, METHOD- BLOT FOR 3 SECONDS BEFORE PLUNGING, |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS / Date: Dec 22, 2014 |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1500 nm / Cs: 1.4 mm |
Image recording | Electron dose: 4.5 e/Å2 / Film or detector model: DIRECT ELECTRON DE-12 (4k x 3k) |
Image scans | Num. digital images: 2000 |
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Processing
EM software |
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Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
3D reconstruction | Resolution: 4.4 Å / Num. of particles: 177207 / Nominal pixel size: 1.32 Å / Actual pixel size: 1.32 Å Details: SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2974. (DEPOSITION ID: 13293 Symmetry type: POINT | ||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL / Details: METHOD--FLEXIBLE | ||||||||||||
Atomic model building | PDB-ID: 4R12 Accession code: 4R12 / Source name: PDB / Type: experimental model | ||||||||||||
Refinement | Highest resolution: 4.4 Å | ||||||||||||
Refinement step | Cycle: LAST / Highest resolution: 4.4 Å
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