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- Table of Contents
Facts about Gamma-secretase subunit APH-1A.
The gamma-secretase complex plays a role in Notch and Wnt signaling cascades and regulation of downstream processes via its role in processing key regulatory proteins, and by regulating cytosolic CTNNB1 levels (Probable). .
Human | |
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Gene Name: | APH1A |
Uniprot: | Q96BI3 |
Entrez: | 51107 |
Belongs to: |
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APH-1 family |
6530402N02Rik; anterior pharynx defective 1 homolog A (C. elegans); APH-1; APH1A; APH-1A; aph-1alpha; CGI-78; gamma-secretase subunit APH-1A; Presenilin-stabilization factor; PSF
Mass (kDA):
28.996 kDA
Human | |
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Location: | 1q21.2 |
Sequence: | 1; NC_000001.11 (150265399..150282179, complement) |
Widely expressed. Expressed in leukocytes, lung, placenta, small intestine, liver, kidney, spleen thymus, skeletal muscle, heart and brain. Isoform 1 and isoform 2 are nearly expressed at the same level.
Endoplasmic reticulum membrane; Multi-pass membrane protein. Golgi apparatus, Golgi stack membrane; Multi-pass membrane protein. Predominantly located in the endoplasmic reticulum and in the cis-Golgi.
PMID: 12297508 by Lee S.-F., et al. Mammalian APH-1 interacts with presenilin and nicastrin and is required for intramembrane proteolysis of amyloid-beta precursor protein and Notch.
PMID: 12110170 by Francis R., et al. aph-1 and pen-2 are required for Notch pathway signaling, gamma- secretase cleavage of betaAPP, and presenilin protein accumulation.