NP_001230701.1
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NCBI GenBank Nucleotide #
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UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
20,977 Da
NCBI Official Full Name
gamma-secretase subunit APH-1A isoform 4
NCBI Official Synonym Full Names
aph-1 homolog A, gamma secretase subunit
NCBI Official Synonym Symbols
APH-1; APH-1A; CGI-78; 6530402N02Rik [Similar Products]
NCBI Protein Information
gamma-secretase subunit APH-1A
UniProt Protein Name
Gamma-secretase subunit APH-1A
UniProt Synonym Protein Names
Aph-1alpha; Presenilin-stabilization factor
UniProt Synonym Gene Names
UniProt Entry Name
APH1A_HUMAN
NCBI Summary for Aph1a
This gene encodes a component of the gamma secretase complex that cleaves integral membrane proteins such as Notch receptors and beta-amyloid precursor protein. The gamma secretase complex contains this gene product, or the paralogous anterior pharynx defective 1 homolog B (APH1B), along with the presenilin, nicastrin, and presenilin enhancer-2 proteins. The precise function of this seven-transmembrane-domain protein is unknown though it is suspected of facilitating the association of nicastrin and presenilin in the gamma secretase complex as well as interacting with substrates of the gamma secretase complex prior to their proteolytic processing. Polymorphisms in a promoter region of this gene have been associated with an increased risk for developing sporadic Alzheimer's disease. Alternative splicing results in multiple protein-coding and non-protein-coding transcript variants. [provided by RefSeq, Aug 2011]
UniProt Comments for Aph1a
APH1A: Essential subunit of the gamma-secretase complex, an endoprotease complex that catalyzes the intramembrane cleavage of integral proteins such as Notch receptors and APP (beta-amyloid precursor protein). It probably represents a stabilizing cofactor for the presenilin homodimer that promotes the formation of a stable complex. Belongs to the APH-1 family. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: Membrane protein, integral; Membrane protein, multi-pass; Apoptosis; Endoplasmic reticulum
Chromosomal Location of Human Ortholog: 1p36.13-q31.3
Cellular Component: endoplasmic reticulum; endoplasmic reticulum membrane; Golgi apparatus; integral to plasma membrane; membrane; plasma membrane
Molecular Function: endopeptidase activity; protein binding
Biological Process: amyloid precursor protein catabolic process; axon guidance; ephrin receptor signaling pathway; membrane protein ectodomain proteolysis; membrane protein intracellular domain proteolysis; metanephros development; nerve growth factor receptor signaling pathway; Notch receptor processing; Notch signaling pathway; positive regulation of apoptosis; positive regulation of catalytic activity; protein processing
Research Articles on Aph1a
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Pathways associated with Aph1a elisa kit
Diseases associated with Aph1a elisa kit
Organs/Tissues associated with Aph1a elisa kit
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