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- PDB-9k95: Cryo-EM structure of human gamma-secretase in complex with compound E -

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Basic information

Entry
Database: PDB / ID: 9k95
TitleCryo-EM structure of human gamma-secretase in complex with compound E
Components
  • (Gamma-secretase subunit ...) x 2
  • Nicastrin
  • Presenilin-1
KeywordsMEMBRANE PROTEIN / Intramembrane protease / gamma-secretase / presenilin-1
Function / homology
Function and homology information


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 / short-term synaptic potentiation / aspartic endopeptidase activity, intramembrane cleaving / 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 / short-term synaptic potentiation / aspartic endopeptidase activity, intramembrane cleaving / 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 / aggresome / myeloid cell homeostasis / 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 / Golgi cisterna membrane / glutamate receptor signaling pathway / positive regulation of amyloid fibril formation / : / blood vessel development / amyloid-beta formation / mitochondrial transport / 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 / hematopoietic progenitor cell differentiation / T cell proliferation / regulation of synaptic transmission, glutamatergic / Nuclear signaling by ERBB4 / calcium ion homeostasis / rough endoplasmic reticulum / Degradation of the extracellular matrix / Notch signaling pathway / neuron projection maintenance / astrocyte activation / NOTCH2 Activation and Transmission of Signal to the Nucleus / 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 / PDZ domain binding / NOTCH3 Activation and Transmission of Signal to the Nucleus / neuromuscular junction / apoptotic signaling pathway / cell-cell adhesion
Similarity search - Function
Peptidase A22A, presenilin 1 / Gamma-secretase subunit Aph-1 / Gamma-secretase aspartyl protease complex, presenilin enhancer-2 subunit / Aph-1 protein / Presenilin enhancer-2 subunit of gamma secretase / Peptidase A22A, presenilin / Presenilin, C-terminal / Presenilin / Nicastrin / Nicastrin, small lobe ...Peptidase A22A, presenilin 1 / Gamma-secretase subunit Aph-1 / Gamma-secretase aspartyl protease complex, presenilin enhancer-2 subunit / Aph-1 protein / Presenilin enhancer-2 subunit of gamma secretase / Peptidase A22A, presenilin / Presenilin, C-terminal / Presenilin / Nicastrin / Nicastrin, small lobe / Nicastrin large lobe / Nicastrin small lobe / Presenilin/signal peptide peptidase / Presenilin, signal peptide peptidase, family
Similarity search - Domain/homology
: / CHOLESTEROL / 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE / Presenilin-1 / Nicastrin / Gamma-secretase subunit APH-1A / Gamma-secretase subunit PEN-2
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsZhou, R. / Huang, G. / Guo, X. / Wang, J. / Ge, X. / Shi, Y.
Funding support China, 1items
OrganizationGrant numberCountry
National Basic Research Program of China (973 Program)2020YFA0509300 China
CitationJournal: To Be Published
Title: Structural insights into human signal peptide peptidase
Authors: Zhou, R. / Huang, G. / Guo, X. / Wang, J. / Ge, X. / Shi, Y.
History
DepositionOct 25, 2024Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Oct 29, 2025Provider: repository / Type: Initial release
Revision 1.0Oct 29, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Oct 29, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Oct 29, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Oct 29, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Oct 29, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Nicastrin
B: Presenilin-1
C: Gamma-secretase subunit APH-1A
D: Gamma-secretase subunit PEN-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)179,84422
Polymers172,2534
Non-polymers7,59118
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein Nicastrin


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
#2: Protein Presenilin-1 / PS-1 / Protein S182


Mass: 52713.535 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSEN1, AD3, PS1, PSNL1 / Production host: Homo sapiens (human)
References: UniProt: P49768, Hydrolases; Acting on peptide bonds (peptidases); Aspartic endopeptidases

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Gamma-secretase subunit ... , 2 types, 2 molecules CD

#3: Protein Gamma-secretase subunit APH-1A / APH-1a / Aph-1alpha / Presenilin-stabilization factor


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 / Production host: Homo sapiens (human) / References: UniProt: Q96BI3
#4: Protein Gamma-secretase subunit PEN-2 / Presenilin enhancer protein 2


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

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Sugars , 3 types, 12 molecules

#5: Polysaccharide
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 5
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#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


Type: oligosaccharide / Mass: 910.823 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-3[DManpb1-6]DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,5,4/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2-2-2/a4-b1_b4-c1_c3-d1_c6-e1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][b-D-Manp]{}[(6+1)][b-D-Manp]{}}}}}LINUCSPDB-CARE
#7: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 3 types, 6 molecules

#8: Chemical ChemComp-PC1 / 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE / 3-SN-PHOSPHATIDYLCHOLINE


Mass: 790.145 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C44H88NO8P / Comment: phospholipid*YM
#9: Chemical ChemComp-A1D6X / (2~{S})-2-[2-[3,5-bis(fluoranyl)phenyl]ethanoylamino]-~{N}-[(3~{S})-1-methyl-2-oxidanylidene-5-phenyl-3~{H}-1,4-benzodiazepin-3-yl]propanamide / Compound E / gamma-Secretase Inhibitor XXI


Mass: 490.501 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H24F2N4O3 / Feature type: SUBJECT OF INVESTIGATION
#10: Chemical ChemComp-CLR / CHOLESTEROL


Mass: 386.654 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C27H46O

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Details

Has ligand of interestY
Has protein modificationY

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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: Human gamma-secretase in complex with compound E / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 276964 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00611125
ELECTRON MICROSCOPYf_angle_d0.89815212
ELECTRON MICROSCOPYf_dihedral_angle_d7.0066464
ELECTRON MICROSCOPYf_chiral_restr0.0561810
ELECTRON MICROSCOPYf_plane_restr0.0071843

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