5A63 | pdb_00005a63

Cryo-EM structure of the human gamma-secretase complex at 3.4 angstrom resolution.


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
De5a63D1 A: Repetitive alpha hairpinsX: Lis-homology dimerization domainH: Lis-homology dimerization domainT: FimbrialF:ECOD (20:10:01)
Ce5a63C1 A: Repetitive alpha hairpinsX: Intramembrane protease Rce1-relatedH: Intramembrane protease Rce1-relatedT: Aph-1F:ECOD (20:10:01)
Be5a63B1 A: Periplasmic binding protein-like IIX: Hairpin loop containing domain-likeH: ACT-likeT: ACT_7F:ECOD (20:10:01)
Ae5a63A1 A: EF-handX: HTHH: winged helix domainT:F:ECOD (20:10:01)

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
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
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Gamma-secretase subunit PEN-2
Gamma-secretase subunit APH-1A
Presenilin-1
Nicastrin

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosQ9NZ42
PharosQ96BI3
PharosP49768
PharosQ92542

Membrane Protein Annotation: OPM OPM Database Homepage

ChainsExternal LinkTypeClassSuperfamilyFamily
A, B, C, D
OPMTransmembraneAlpha-helical polytopicPeptidase ADGamma-secretase

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Membrane Protein Annotation: mpstruc mpstruc Database Homepage