8X53 | pdb_00008x53

Cryo-EM structure of human gamma-secretase in complex with Abeta46


Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF10251Presenilin enhancer-2 subunit of gamma secretase (PEN-2)Presenilin enhancer-2 subunit of gamma secretase- Family
PF06105Aph-1 protein (Aph-1)Aph-1 protein- Family
PF05450Nicastrin large lobe (Nicastrin)Nicastrin large lobeNicastrin and presenilin are two major components of the gamma-secretase complex, which executes the intramembrane proteolysis of type I integral membrane proteins such as the amyloid precursor protein (APP) and Notch. Nicastrin is synthesised in fi ...Nicastrin and presenilin are two major components of the gamma-secretase complex, which executes the intramembrane proteolysis of type I integral membrane proteins such as the amyloid precursor protein (APP) and Notch. Nicastrin is synthesised in fibroblasts and neurons as an endoglycosidase-H-sensitive glycosylated precursor protein (immature nicastrin) and is then modified by complex glycosylation in the Golgi apparatus and by sialylation in the trans-Golgi network (mature nicastrin) [1]. A region featured in this family has a fold similar to human transferrin receptor (TfR, Swiss:P02786) and a bacterial aminopeptidase (Swiss:P80561). It is implicated in the pathogenesis of Alzheimer's disease [4].
Domain
PF18266Nicastrin small lobe (Ncstrn_small)Nicastrin small lobeThis domain is part of the protein Nicastrin, a component of gamma secretase present in Homo sapiens. Gamma-secretase is thought to contribute to Alzheimer's disease development by generating beta-amyloid peptides. This domain is the known as the sma ...This domain is part of the protein Nicastrin, a component of gamma secretase present in Homo sapiens. Gamma-secretase is thought to contribute to Alzheimer's disease development by generating beta-amyloid peptides. This domain is the known as the small lobe which forms the 'lid'. The lid is an extended surface loop that covers the hydrophilic pocket that is thought to be responsible for substrate recruitment. On substrate binding, the large lobe is thought to rotate relative to the small lobe [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Amyloid-beta precursor protein
Gamma-secretase subunit PEN-2
Gamma-secretase subunit APH-1A
Presenilin-1
Nicastrin

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR013803Amyloidogenic glycoprotein, amyloid-beta peptideDomain
IPR008154Amyloidogenic glycoprotein, extracellularDomain
IPR036176E2 domain superfamilyHomologous Superfamily
IPR024329Amyloidogenic glycoprotein, E2 domainDomain
IPR036669Amyloidogenic glycoprotein, copper-binding domain superfamilyHomologous Superfamily
IPR019745Amyloidogenic glycoprotein, intracellular domain, conserved siteConserved Site
IPR011178Amyloidogenic glycoprotein, copper-bindingDomain
IPR037071Amyloidogenic glycoprotein, amyloid-beta peptide superfamilyHomologous Superfamily
IPR020901Proteinase inhibitor I2, Kunitz, conserved siteConserved Site
IPR019744Amyloidogenic glycoprotein, copper-binding domain conserved siteConserved Site
IPR002223Pancreatic trypsin inhibitor Kunitz domainDomain
IPR015849Amyloidogenic glycoprotein, heparin-bindingDomain
IPR036454Amyloidogenic glycoprotein, heparin-binding domain superfamilyHomologous Superfamily
IPR011993PH-like domain superfamilyHomologous Superfamily
IPR019543Beta-amyloid precursor protein C-terminalDomain
IPR036880Pancreatic trypsin inhibitor Kunitz domain superfamilyHomologous Superfamily
IPR008155Amyloidogenic glycoproteinFamily
IPR019379Gamma-secretase aspartyl protease complex, presenilin enhancer-2 subunitFamily
IPR009294Gamma-secretase subunit Aph-1Family
IPR006639Presenilin/signal peptide peptidaseFamily
IPR002031Peptidase A22A, presenilin 1Family
IPR042524Presenilin, C-terminalHomologous Superfamily
IPR001108Peptidase A22A, presenilinFamily
IPR041084Nicastrin, small lobeDomain
IPR008710NicastrinFamily

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosP05067
PharosQ9NZ42
PharosQ96BI3
PharosP49768
PharosQ92542

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

ChainsExternal LinkComment
A, B, C, D, E
PDBTMAnnotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage