[English] 日本語

- PDB-5a63: Cryo-EM structure of the human gamma-secretase complex at 3.4 ang... -
+
Open data
-
Basic information
Entry | Database: PDB / ID: 5a63 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | Cryo-EM structure of the human gamma-secretase complex at 3.4 angstrom resolution. | ||||||||||||
![]() |
| ||||||||||||
![]() | HYDROLASE / CRYO-EM / HUMAN GAMMA-SECRETASE / MEMBRANE PROTEIN | ||||||||||||
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 / positive regulation of endopeptidase activity / 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 ...Cajal-Retzius cell differentiation / positive regulation of L-glutamate import across plasma membrane / amyloid precursor protein biosynthetic process / negative regulation of core promoter binding / positive regulation of endopeptidase activity / 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 / choline transport / T cell activation involved in immune response / 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 / metanephros development / 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 / astrocyte activation involved in immune response / embryonic limb morphogenesis / cell fate specification / 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 / Golgi cisterna membrane / 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 / regulation of neuron projection development / positive regulation of dendritic spine development / adult behavior / positive regulation of receptor recycling / cerebral cortex cell migration / smooth endoplasmic reticulum / nuclear outer membrane / membrane protein ectodomain proteolysis / negative regulation of apoptotic signaling pathway / negative regulation of ubiquitin-dependent protein catabolic process / EPH-ephrin mediated repulsion of cells / autophagosome assembly / endopeptidase activator activity / neuron development / somitogenesis / T cell proliferation / hematopoietic progenitor cell differentiation / regulation of synaptic transmission, glutamatergic / Nuclear signaling by ERBB4 / calcium ion homeostasis / rough endoplasmic reticulum / Notch signaling pathway / Degradation of the extracellular matrix / neuron projection maintenance / NOTCH2 Activation and Transmission of Signal to the Nucleus / astrocyte activation / NRIF signals cell death from the nucleus / cellular response to calcium ion / Activated NOTCH1 Transmits Signal to the Nucleus / cerebellum development / thymus development / positive regulation of glycolytic process / dendritic shaft / epithelial cell proliferation / post-embryonic development / NOTCH3 Activation and Transmission of Signal to the Nucleus / PDZ domain binding / neuromuscular junction / apoptotic signaling pathway / cell-cell adhesion Similarity search - Function | ||||||||||||
Biological species | ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||||||||
![]() | Bai, X. / Yan, C. / Yang, G. / Lu, P. / Ma, D. / Sun, L. / Zhou, R. / Scheres, S.H.W. / Shi, Y. | ||||||||||||
![]() | ![]() Title: An atomic structure of human γ-secretase. Authors: Xiao-Chen Bai / Chuangye Yan / Guanghui Yang / Peilong Lu / Dan Ma / Linfeng Sun / Rui Zhou / Sjors H W Scheres / Yigong Shi / ![]() ![]() Abstract: Dysfunction of the intramembrane protease γ-secretase is thought to cause Alzheimer's disease, with most mutations derived from Alzheimer's disease mapping to the catalytic subunit presenilin 1 (PS1) ...Dysfunction of the intramembrane protease γ-secretase is thought to cause Alzheimer's disease, with most mutations derived from Alzheimer's disease mapping to the catalytic subunit presenilin 1 (PS1). Here we report an atomic structure of human γ-secretase at 3.4 Å resolution, determined by single-particle cryo-electron microscopy. Mutations derived from Alzheimer's disease affect residues at two hotspots in PS1, each located at the centre of a distinct four transmembrane segment (TM) bundle. TM2 and, to a lesser extent, TM6 exhibit considerable flexibility, yielding a plastic active site and adaptable surrounding elements. The active site of PS1 is accessible from the convex side of the TM horseshoe, suggesting considerable conformational changes in nicastrin extracellular domain after substrate recruitment. Component protein APH-1 serves as a scaffold, anchoring the lone transmembrane helix from nicastrin and supporting the flexible conformation of PS1. Ordered phospholipids stabilize the complex inside the membrane. Our structure serves as a molecular basis for mechanistic understanding of γ-secretase function. | ||||||||||||
History |
|
-
Structure visualization
Movie |
![]() |
---|---|
Structure viewer | Molecule: ![]() ![]() |
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 270.5 KB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | 211.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.5 MB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 1.5 MB | Display | |
Data in XML | ![]() | 49.9 KB | Display | |
Data in CIF | ![]() | 70.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 2677M ![]() 2678M ![]() 3061MC M: map data used to model this data C: citing same article ( |
---|---|
Similar structure data | |
EM raw data | ![]() Data #1: Unaligned multi-frame micrographs of human gamma-secretase [micrographs - multiframe]) |
-
Links
-
Assembly
Deposited unit | ![]()
|
---|---|
1 |
|
-
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.) ![]() ![]() |
---|---|
#2: Protein | Mass: 52713.535 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P49768, 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.) ![]() ![]() |
---|---|
#4: Protein | Mass: 12038.029 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Sugars , 3 types, 11 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 / |
---|
-Non-polymers , 1 types, 2 molecules 
#8: Chemical |
---|
-Details
Has protein modification | Y |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
Component | Name: HUMAN GAMMA-SECRETASE / Type: COMPLEX |
---|---|
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: VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 100, TEMPERATURE- 85, INSTRUMENT- FEI VITROBOT MARK IV, METHOD- BLOT FOR 4 SECONDS BEFORE PLUNGING, |
-
Electron microscopy imaging
Experimental equipment | ![]() Model: Tecnai F30 / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TECNAI F30 / Date: Oct 2, 2014 |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 81000 X / Calibrated magnification: 35714 X / Nominal defocus max: 3200 nm / Nominal defocus min: 700 nm / Cs: 2.7 mm |
Specimen holder | Temperature: 85 K |
Image recording | Electron dose: 38 e/Å2 / Film or detector model: GATAN K2 (4k x 4k) |
Radiation wavelength | Relative weight: 1 |
-
Processing
EM software |
| ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Details: EACH PARTICLE | ||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
3D reconstruction | Resolution: 3.4 Å / Num. of particles: 159549 Magnification calibration: CROSS- -CORRELATION DENSITIES WITHIN SPHERICAL SHELL Details: SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3061. (DEPOSITION ID: 13527). Symmetry type: POINT | ||||||||||||
Refinement | Highest resolution: 3.4 Å | ||||||||||||
Refinement step | Cycle: LAST / Highest resolution: 3.4 Å
|