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Fig. 3 | Molecular Neurodegeneration

Fig. 3

From: Seizure protein 6 and its homolog seizure 6-like protein are physiological substrates of BACE1 in neurons

Fig. 3

BACE2 but not BACE1 cleaves SEZ6 and SEZ6L in a pancreatic β-cell line. a sSEZ6 and sSEZ6L were detected in the supernatant and full-length SEZ6 and SEZ6L in the lysate of the pancreatic β-cell line MIN6 upon BACE1 and BACE2 knock-down by siRNA (siB1, siB2). As a control, cells were treated with non-silencing control siRNA (siCon). Densitometric quantitations of the Western blots are shown, (*; p < 0.05, two-tailed Mann-Whitney test n = 4). b BACE1 (green lines) and BACE2 (blue lines) activity were quantified in enzymatic (solid lines) and cellular (dotted lines) models after pharmacological inhibition with nonselective (inhibiting both BACE1 and BACE2, compounds B and C) and BACE1-selective inhibitors (compound A). Soluble Aβ42 as well as sSEZ6 and sSEZ6L were detected in the supernatant of the neuroblastoma cell line SK-N-BE(2) or in the MIN6 respectively, as indicated. Data were standardized to low and high controls within each assay. Data represent biological duplicates with two or more technical replicates

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