This gene encodes amyloid precursor- like protein 2 (APLP2), which is a member of the APP (amyloid precursor protein) family including APP, APLP1 and APLP2. This protein is ubiquitously expressed. It contains heparin-, copper- and zinc- binding domains at the N-terminus, BPTI/Kunitz inhibitor and E2 domains in the middle region, and transmembrane and intracellular domains at the C-terminus. This protein interacts with major histocompatibility complex (MHC) class I molecules. The synergy of this protein and the APP is required to mediate neuromuscular transmission, spatial learning and synaptic plasticity. This protein has been implicated in the pathogenesis of Alzheimer's disease. Multiple alternatively spliced transcript variants encoding different isoforms have been identified.
Background References
1. Gao L. et. al. Role of APLP2 in the prognosis and clinicopathology of renal cell carcinoma. Oncol Lett. 2019 Jan.
2. Wang X. et. al. APLP2 Modulates JNK-Dependent Cell Migration in Drosophila. Biomed Res Int. 2018 Jul.
Sequence Similarity
Belongs to the APP family.
Tissue Specificity
Expressed in placenta, brain, heart, lung, liver, kidney and endothelial tissues.
Post-translational Modification
The BPTI/Kunitz inhibitor domain is O-glycosylated.
Western blot analysis of APLP2 on different lysates with Rabbit anti-APLP2 antibody (ET7110-78) at 1/1,000 dilution.
Lane 1: A549-WT cell lysate Lane 2: A549-KD APLP2 cell lysate
Lysates/proteins at 10 µg/Lane.
Predicted band size: 87 kDa Observed band size: 100 kDa
Exposure time: 2 minutes 10 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (ET7110-78) at 1/1,000 dilution was used in 5% BSA at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
Immunohistochemical analysis of paraffin-embedded rat testis tissue with Rabbit anti-APLP2 antibody (ET7110-78) at 1/50 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET7110-78) at 1/50 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded human kidney tissue with Rabbit anti-APLP2 antibody (ET7110-78) at 1/50 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET7110-78) at 1/50 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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