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Tau Modifications v1.9.5

Tau Modifications Sections of NESTOR



Tau contains cysteine residues in the microtubule binding region following alternative splicing of exon 10, and formation of intermolecular cysteine disulfide bonds accelerates tau aggregation. 8-Nitro-cGMP (novel second messenger of NO) exposure induced S-guanylation of tau both in vitro and in tau-overexpressed HEK293T cells. S-guanylated tau inhibited heparin-induced tau aggregation (thioflavin T). S-guanylated tau could not form tau granules and fibrils (AFM) inhibited at the step of tau oligomer formation. In P301L tau-expressing Neuro2A cells, 8-nitro-cGMP reduced the amount of sarcosyl-insoluble tau. NO-linked chemical modification on cysteine residues of tau could block tau aggregation

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