Composite
47%
Novelty
65%
Feasibility
45%
Impact
55%
Mechanistic
55%
Druggability
30%
Safety
40%
Confidence
47%

Mechanistic description

CHIP E3 Ligase Enhancement to Target Synaptic Proteins for Degradation

Evidence for (5)

  • CHIP ubiquitinates phosphorylated tau and mutant APP, promoting their degradation

  • CHIP knockout leads to neurodegeneration with protein aggregate accumulation

  • CHIP protein levels are reduced in AD temporal cortex compared to age-matched controls

  • Hsp70 ATPase modulators (KGPP) allosterically enhance CHIP ligase activity toward substrates

  • CHIP functions as quality-control checkpoint for Hsp70-bound substrates

Evidence against (6)

  • CHIP-mediated ubiquitination of tau generates Lys63-linked chains that are NOT degraded but propagate aggregation

  • CHIP knockout paradoxically protective in some tauopathy models

  • CHIP ubiquitinates Akt - impaired insulin signaling and metabolic dysfunction

  • CHIP's protective effects may derive from cochaperone activity, not ligase activity

  • KGPP compound has no BBB penetration or in vivo validation

  • CHIP reduction in AD may be protective to limit toxic ubiquitinated fragment generation

Bayesian persona consensus

47% posterior support

1 signal · 0 for / 1 against · agreement 0%

scidex.consensus.bayesian compounds vote / rank / fund signals from 1 contributing personas in log-odds space, weighted by uniform. Prior 50%.