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- PDB-4uis: The cryoEM structure of human gamma-Secretase complex -

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Basic information

Entry
Database: PDB / ID: 4uis
TitleThe cryoEM structure of human gamma-Secretase complex
Components
  • (GAMMA-SECRETASEGamma secretase) x 4
  • LYSOZYME
KeywordsHYDROLASE / GAMMA-SECRETASE
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 / Notch receptor processing / central nervous system myelination / sequestering of calcium ion / membrane protein intracellular domain proteolysis / synaptic vesicle targeting / negative regulation of axonogenesis / regulation of resting membrane potential / T cell activation involved in immune response / skin morphogenesis / NOTCH4 Activation and Transmission of Signal to the Nucleus / 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 / amyloid precursor protein metabolic process / regulation of phosphorylation / locomotion / brain morphogenesis / glutamate receptor signaling pathway / endoplasmic reticulum calcium ion homeostasis / nuclear outer membrane / smooth endoplasmic reticulum calcium ion homeostasis / 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 / positive regulation of amyloid fibril formation / cell fate specification / regulation of postsynapse organization / positive regulation of dendritic spine development / ciliary rootlet / myeloid cell homeostasis / azurophil granule membrane / dopamine receptor signaling pathway / adult behavior / Hydrolases; Acting on peptide bonds (peptidases); Aspartic endopeptidases / positive regulation of receptor recycling / mitochondrial transport / positive regulation of catalytic activity / heart looping / regulation of neuron projection development / blood vessel development / amyloid precursor protein catabolic process / cerebral cortex cell migration / smooth endoplasmic reticulum / protein glycosylation / amyloid-beta formation / negative regulation of apoptotic signaling pathway / autophagosome assembly / membrane protein ectodomain proteolysis / EPH-ephrin mediated repulsion of cells / neuron development / Nuclear signaling by ERBB4 / rough endoplasmic reticulum / hematopoietic progenitor cell differentiation / somitogenesis / amyloid-beta metabolic process / T cell proliferation / negative regulation of ubiquitin-dependent protein catabolic process / Notch signaling pathway / regulation of synaptic transmission, glutamatergic / viral release from host cell by cytolysis / NOTCH2 Activation and Transmission of Signal to the Nucleus / cellular response to calcium ion / neuron projection maintenance / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus / Degradation of the extracellular matrix / cerebellum development / positive regulation of glycolytic process / peptidoglycan catabolic process / post-embryonic development / dendritic shaft / thymus development / negative regulation of protein phosphorylation / epithelial cell proliferation / PDZ domain binding / NOTCH3 Activation and Transmission of Signal to the Nucleus / astrocyte activation / apoptotic signaling pathway / synapse organization / neuron migration
Similarity search - Function
Peptidase A22A, presenilin 1 / Peptidase A22A, presenilin / Presenilin, C-terminal / Presenilin / Nicastrin / Nicastrin, small lobe / Nicastrin / Nicastrin small lobe / Presenilin/signal peptide peptidase / Presenilin, signal peptide peptidase, family ...Peptidase A22A, presenilin 1 / Peptidase A22A, presenilin / Presenilin, C-terminal / Presenilin / Nicastrin / Nicastrin, small lobe / Nicastrin / Nicastrin small lobe / Presenilin/signal peptide peptidase / Presenilin, signal peptide peptidase, family / Endolysin T4 type / T4-type lysozyme / Glycoside hydrolase, family 24 / Lysozyme domain superfamily / Phage lysozyme / Lysozyme-like domain superfamily
Similarity search - Domain/homology
Endolysin / Endolysin / Presenilin-1 / Nicastrin
Similarity search - Component
Biological speciesHOMO SAPIENS (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.4 Å
AuthorsSun, L. / Zhao, L. / Yang, G. / Yan, C. / Zhou, R. / Zhou, X. / Xie, T. / Zhao, Y. / Wu, S. / Li, X. / Shi, Y.
CitationJournal: Proc Natl Acad Sci U S A / Year: 2015
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.
History
DepositionApr 3, 2015Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 10, 2015Provider: repository / Type: Initial release
Revision 1.1Aug 2, 2017Group: Data collection / Category: em_software
Item: _em_software.fitting_id / _em_software.image_processing_id / _em_software.name

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Structure visualization

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  • Simplified surface model + fitted atomic model
  • EMDB-2974
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Assembly

Deposited unit
A: GAMMA-SECRETASE
B: GAMMA-SECRETASE
C: GAMMA-SECRETASE
D: GAMMA-SECRETASE
G: LYSOZYME


Theoretical massNumber of molelcules
Total (without water)127,3085
Polymers127,3085
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA

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Components

#1: Protein GAMMA-SECRETASE / Gamma secretase


Mass: 63331.977 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Cell line (production host): HEK 293S / Production host: HOMO SAPIENS (human) / References: UniProt: Q92542*PLUS
#2: Protein GAMMA-SECRETASE / Gamma secretase


Mass: 23547.639 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Cell line (production host): HEK 293S / Production host: HOMO SAPIENS (human) / References: UniProt: P49768*PLUS
#3: Protein GAMMA-SECRETASE / Gamma secretase


Mass: 16698.539 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Cell line (production host): HEK 293S / Production host: HOMO SAPIENS (human)
#4: Protein GAMMA-SECRETASE / Gamma secretase


Mass: 5294.518 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Cell line (production host): HEK 293S / Production host: HOMO SAPIENS (human)
#5: Protein LYSOZYME /


Mass: 18435.207 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Cell line (production host): HEK 293S / Production host: HOMO SAPIENS (human)
References: UniProt: A0A097J809, UniProt: D9IEF7*PLUS, lysozyme

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: T4-LYSOZYME FUSION GAMMA- SECRETASE / Type: COMPLEX
Buffer solutionName: 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.
SpecimenConc.: 4.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: HOLEY CARBON
VitrificationInstrument: 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
MicroscopyModel: FEI TITAN KRIOS / Date: Dec 22, 2014
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 3000 nm / Nominal defocus min: 1500 nm / Cs: 1.4 mm
Image recordingElectron dose: 4.5 e/Å2 / Film or detector model: DIRECT ELECTRON DE-12 (4k x 3k)
Image scansNum. digital images: 2000

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Processing

EM software
IDNameCategory
1UCSF Chimeramodel fitting
2RELION3D reconstruction
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 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 buildingProtocol: FLEXIBLE FIT / Space: REAL / Details: METHOD--FLEXIBLE
Atomic model buildingPDB-ID: 4R12

4r12

RefinementHighest resolution: 4.4 Å
Refinement stepCycle: LAST / Highest resolution: 4.4 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms8461 0 0 0 8461

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