Live·Open questions in longevity research
All targets

Enzyme

ORF2

A LINE-1 protein whose endonuclease activity creates DNA damage, including during unsuccessful insertion attempts

Hypotheses on this target 1

ORF2Inhibition. Hypotheses on this target 11Activation. Hypotheses on this target 0Lower level. Hypotheses on this target 0Higher level. Hypotheses on this target 0Replacement. Hypotheses on this target 0Protection from degradation. Hypotheses on this target 0Cofactor removal. Hypotheses on this target 0Synthesis suppression. Hypotheses on this target 0Function preservation. Hypotheses on this target 0
  • Inhibition1
  • Activation
  • Lower level
  • Higher level
  • Replacement
  • Protection from degradation
  • Cofactor removal
  • Synthesis suppression
  • Function preservation

Inhibition1

  • Mobile genetic element cutting may restart cellular senescence after senescent-cell removal

    Where this hypothesis actsPreviously nonsenescent cells that retain division capacity when the chronic senescent population is removed

    What is proposedSuppress endonuclease activity before the next wave of DNA damage

    With whatControlled genetic model

    HowUse genetic suppression and restoration with endonuclease-active or endonuclease-disabled ORF2 at comparable expression levels

    Possible resultPossible stabilization of SPV_2 even on the existing matrix

    2026-09-30