r(HGNC:PPP1CA)

Entity

Name

PPP1CA

Namespace

hgnc

Namespace Version

20180828

Namespace URL

https://raw.githubusercontent.com/pharmacome/terminology/1b20f0637c395f8aa89c2e2e342d7b704062c242/external/hgnc-symbols.belns

CBF neurons displaying the tau C3 epitope, a marker for early stage NFT formation, were often hyperinnervated by GAL-containing fibers, whereas CBF neurons displaying the tau epitope MN423, an end-stage NFT marker, were not associated with GAL. Single cell gene expression studies have demonstrated that the levels of mRNAs encoding select subclasses of PP1 subunits (e.g., PP1alpha and PP1gamma) are stable in GAL hyperinnervated but downregulated in non-hyperinnervated CBF neurons in AD [149] PubMed:18986241

In addition, subunits of protein phosphatase PP1 (Unigene-NCBI annotation PPP1CA and PPP1CC) mRNAs were downregulated in CBF neurons in AD [135]. This observation is interesting in light of the observation that PP1 can phosphorylate tau on several serine/threonine residues and experimental downregulation of PP1 activity leads to increased tau hyperphosphorylation [137,138], which may affect NFT formation in CBF neurons. PubMed:18986241