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p(HGNC:MAPT, frag("1_?"))

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Entity

Name
MAPT
Namespace
hgnc
Namespace Version
20180906
Namespace URL
https://raw.githubusercontent.com/pharmacome/terminology/b46b65c3da259b6e86026514dfececab7c22a11b/external/hgnc-names.belns

Appears in Networks 1

Tau clearance mechanisms and their possible role in the pathogenesis of Alzheimer disease v1.0.0

In-Edges 6

act(a(CHEBI:Thrombin)) increases p(HGNC:MAPT, frag("1_?")) View Subject | View Object

Evidence supporting a role for thrombin in tau proteolysis came initially from an in vitro study showing that thrombin degraded recombinant full-length tau from the N-terminus yielding a 25-kDa fragment, while preserving the microtubule binding repeat domain (13). PubMed:24027553

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p(HGNC:MAPT) hasVariant p(HGNC:MAPT, frag("1_?")) View Subject | View Object

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act(p(HGNC:CASP6)) increases p(HGNC:MAPT, frag("1_?")) View Subject | View Object

Caspase-6 was also shown to cleave the N-terminus of tau in vitro (24). Caspase-3, which is a key effector in the apoptotic cascade, cleaves tau predominantly at the C-terminal D421 site generating a fragment often referred to as tauC3 (22, 23). PubMed:24027553

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act(p(HGNC:CASP6)) increases p(HGNC:MAPT, frag("1_?")) View Subject | View Object

Furthermore, active caspase co-localizes to NFTs (58), and caspase-cleaved tau is found in AD-affected brain regions, particularly in neurons displaying tangle pathology (59, 60). This includes tau cleaved by caspase-6 in the C-terminus (58–60) as well as in the N-terminus (24). TauC3 is present in AD brain – in neurons and co-localized with NFTs – and inversely correlates with cognitive function (55, 60, 61). PubMed:24027553

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MeSH
Alzheimer Disease
Text Location
Review

p(HGNC:NPEPPS) increases p(HGNC:MAPT, frag("1_?")) View Subject | View Object

PSA was able to cleave recombinant tau in vitro, as well as tau from control human brain (11). However, the data presented in this study suggest that PSA is cleaving tau from both the C- and N-terminal ends, which is not expected from an aminopeptidase. Additionally, other studies failed to demonstrate tau cleavage by PSA (28, 29). PubMed:24027553

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MeSH
Brain
Text Location
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path(MESH:"Neurofibrillary Tangles") association p(HGNC:MAPT, frag("1_?")) View Subject | View Object

The predominant post-translational modification of tau in the NFTs is phosphorylation; however numerous modifications have been noted including truncation, acetylation, nitration, and several others (2–4). PubMed:24027553

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Out-Edges 1

p(HGNC:MAPT, frag("1_?")) association path(MESH:"Neurofibrillary Tangles") View Subject | View Object

The predominant post-translational modification of tau in the NFTs is phosphorylation; however numerous modifications have been noted including truncation, acetylation, nitration, and several others (2–4). PubMed:24027553

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Text Location
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BEL Commons is developed and maintained in an academic capacity by Charles Tapley Hoyt and Daniel Domingo-Fernández at the Fraunhofer SCAI Department of Bioinformatics with support from the IMI project, AETIONOMY. It is built on top of PyBEL, an open source project. Please feel free to contact us here to give us feedback or report any issues. Also, see our Publishing Notes and Data Protection information.

If you find BEL Commons useful in your work, please consider citing: Hoyt, C. T., Domingo-Fernández, D., & Hofmann-Apitius, M. (2018). BEL Commons: an environment for exploration and analysis of networks encoded in Biological Expression Language. Database, 2018(3), 1–11.