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. 2018 Feb 6;12:44. doi: 10.3389/fnins.2018.00044

Figure 4.

Figure 4

Phosphoisotypes of tau on Phos-tag SDS-PAGE. (A) Immunoblotting of tau expressed in COS-7 cells with tau5 in the presence (+) or absence (−) of Cdk5-p35 after Phos-tag-SDS-PAGE, and the phosphorylation sites in each band are indicated by the amino acid number according to the human longest isoform of tau. Y is an unknown phosphorylation site. (B) Immunoblotting of tau in human brains after Phos-tag SDS-PAGE. NC, normal control; AD V and VI, Braak stage V and VI of Alzheimer's disease (AD); CBD Tl and Pg, temporal lobe (Tl) and prefrontal gyrus (Pg) of corticobasal degeneration (CBD). We propose that the banding pattern created using Phos-tag SDS-PAGE could be read by a bar code reader and result in a simple method for diagnosing tauopathy. (A,B) are reproduced and modified from figures reported previously by Kimura et al. (2016a,b), respectively.