APH1B Antibody, Biotin conjugated

1. Data show that presenilin 1 (PS1)/anterior-pharynx-defective protein 1 (Aph1b), presenilin 2 (PS2)/Aph1aL, PS2/Aph1aS and PS2/anterior pharynx defective 1 homolog B (Aph1b) gamma-secretase produced amyloid beta peptide (Abeta) with a higher Abeta42+Abeta43-to-Abeta40 (Abeta42(43)/Abeta40) ratio than the other gamma-secretases. PMID: 27608597
2. gamma-Secretase inhibition during repeated peripheral inflammation blocks central amyloid-beta accumulation and prevents cognitive dysfunction. PMID: 23665252
3. Expression of APH-1b increases amyloid beta peptide levels and gamma-secretase activity. PMID: 12763021
4. both APH-1a splice forms and APH-1b are expressed in peripheral and neuronal cells. APH-1aS, APH-1aL, and APH-1b form separate, proteolytically active gamma-secretase complexes containing either one of the two presenilins. PMID: 15286082
5. dimeric (NCSTN/APH-1) and trimeric (NCSTN/APH-1/PS1) intermediates of gamma-secretase complex assembly are retained within the ER and incorporation of the fourth binding partner (PEN-2) also occurs on immature NCSTN (APH-1) PMID: 15591316
6. knock down of APH-1a, but not APH-1b, resulted in impaired maturation of nicastrin and reduced expression of presenilin 1, presenilin 2, and PEN-2 proteins PMID: 15629423
7. APH-1b variant protein is destabilized, and the fourth transmembrane domain plays an important role in the protein stability and function of APH-1. PMID: 15823552
8. These results collectively indicate that the three forms of APH-1 can replace each other in presenilin (PS) complexes and that the transmembrane GxxxG region is essential for the stability of the APH-1 protein as well as the assembly of PS complexes. PMID: 16757808
9. These data suggest that a cooperative mechanism involving APOE and APH-1b plays a role in the susceptibility to develop AD. PMID: 17466415
10. A non-synonymous SNP in the gamma-secretase component APH1B (Phe217Leu; rs1047552)is significantly associated with premature coronary atherosclerosis in Dutch males. PMID: 18987747
11. The single-nucleotide polymorphism (Phe217Leu; rs1047552) showed a tendency for association with HIV-1 infection in a Xhosa indigenous South African Bantu study (P = 0.087), and associated significantly in a Caucasian Dutch study (P = 0.049). PMID: 19774691

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HGNC: 24080

OMIM: 607630

KEGG: hsa:83464

STRING: 9606.ENSP00000261879

UniGene: Hs.511703