Cystinosis (nephropathic, CTNS) OMIM 219800

In Cystinosis (CTNS, OMIM 219800), the master switch sits on the ↑ UP branch ([F] forced below); the healthy state is the ON well. The forced corrective direction is to raise s toward ON branch (polarity: clear). Classification: ✓ Recovers an existing standard. Direction only — no dose, no efficacy magnitude.

The disease maps to an R19 double-well whose corrective lever is read straight off the cusp (barrier 0.5759, γ 1.5178, spinodal 0.7197). The corrective direction is forced [F]; the agent names below are direction-concordant labels at grade [O] (no dose, no efficacy or safety magnitude). This is a research hypothesis offered to experts, not medical advice.

The emergence switch

The switch for Cystinosis is an R19 double-well emerged from the real proximal-promoter DNA of CTNS. Its geometry is fixed by measured stiffness γ (never fitted); the numbers below are read directly off that cusp.

emergent axis
↑ UP [F]
healthy branch
ON
lesion
LOF_null
γ (stiffness)
1.5178
barrier
0.5759
spinodal
0.7197
s_on / s_off
1.2320 / -1.2320
fragility
0.11
corrective polarity
clear
forced direction
raise s toward ON branch

Chemistry feasibility (DIRECTION only [O]). small-molecule recrossing of the fold is geometrically harder (barrier 0.5759 at neutral drive; lower barrier = smaller drive to supply). [O] -- no affinity/potency/dose/efficacy asserted.

The derived corrective lever

The cusp forces a corrective direction: raise s toward ON branch. This is the load-bearing output of the framework — it is [F] forced, and it is falsifiable. 2 lever families are derived; the lead is h-restore (drive modulator).

h-restore (drive modulator)sign: decreasegeometric rank 0.11
Mechanism. remove / oppose the drive (clear the accumulating load that pins the disease branch)
Applies to. allele-agnostic (downstream/environmental tilt)
favoured when the switch is fragile -- a small drive shift recrosses the fold
Falsifier. If clearing/opposing the accumulating cystine does NOT relieve the disease branch in a CTNS model, the h-restore(clear) lever is refuted for this axis.
gamma-restore (stabiliser / chaperone)sign: Nonegeometric rank 0.00
Mechanism. N/A
Applies to. none (honest exclusion)
EXCLUDED: null allele -- no product to stiffen
Falsifier. If a folding-stabiliser/chaperone does NOT re-deepen the healthy well for a residual CTNS allele (no rescue that a null allele lacks), the gamma-restore lever is refuted; null alleles are excluded by construction.

Agents mapped onto the lever

✓ Agreement with established practice. The corrective direction derived here (raise s toward ON branch) independently matches an agent already in clinical use for this disease: aminothiol substrate-depleter (cysteamine -- cysteamine bitartrate / mercaptamine). The geometry recovered known medicine — this is a validation signal for the logic, not a new treatment claim by this kit.
Existing agents whose known action is direction-concordant with the derived lever (status as pinned in the corpus; no dose, no efficacy magnitude).
agent (class)dir.statusphasemap
aminothiol substrate-depleter (cysteamine -- cysteamine bitartrate / mercaptamine)
Thoene 1976 J Clin Invest 58:180 (cysteamine depletes cystinotic cystine); Markello 1993 NEJM 328:1157 (cysteamine slows renal decline); cysteamine bitartrate (Cystagon) FDA 1994 / delayed-release (Procysbi) FDA 2013
decreaseapproved4✓ in use
CTNS restoration (autologous haematopoietic-stem-cell CTNS gene therapy, investigational)
Harrison 2013 Mol Ther 21:433 and Cherqui 2017 (HSPC CTNS gene therapy in the Ctns-/- model); CTNS-RD-04 first-in-human autologous HSPC gene therapy
decreaseinvestigational2◇ in trials
⚠ Mechanism-direction only — do not self-administer; no dose (unvalidated; set by a physician / national authority); not an approved use.

Direction-only candidate leads (corpus join)

Each lead is surfaced only because its known mechanism points the same way as the derived lever, and each comes with a source and a falsifier. None is a treatment.

cysteamine (cysteamine bitartrate)✓ recovered standarddir: decrease · approved
Class. aminothiol cystine-depleting agent (lysosomal cystine clearance)
Mechanism. Reacts with intralysosomal cystine to form cysteine and a cysteine-cysteamine mixed disulfide that leave the lysosome through an intact PQLC2 transporter, lowering the cystine load that the defective CTNS transporter can no longer export. Direction: decrease / clear the accumulating cystine. Allele scope: agnostic -- acts on the cystine pool downstream of the transporter lesion. Pathway-specific to lysosomal cystine clearance (mapped to cystinosis).
✓ This is a rediscovery. Cysteamine is approved for nephropathic cystinosis; the direction logic recovered an established therapy.
Safety (qualitative; no magnitude). post-marketing safety profile on record (approved for nephropathic cystinosis; qualitative; no magnitude)
Falsifier. If cysteamine (cysteamine bitartrate) (a pathway decrease agent) clearing/opposing the accumulating load does NOT relieve the UP [F] disease branch in a CTNS model, the h-restore(clear) direction is refuted for cysteamine (cysteamine bitartrate) here.
Source: FDA/EMA label: cysteamine bitartrate (Cystagon / Procysbi), nephropathic cystinosis
⚠ Mechanism-direction only — do not self-administer; no dose (unvalidated; set by a physician / national authority); not an approved use.

Evidence & provenance

What is reproduced vs. cited for this page.
elementgradebasis
R19 switch & cusp geometry (this page)[V] verifiedemerged from measured promoter γ of CTNS; deterministic, 2×sha256 identical
corrective direction[F] forcedforced by the cusp sign; falsifiable (see lever falsifiers)
mapped agents / leads[O] opendirection-concordance only; corpus-pinned (2026-06-21); no dose, no efficacy/safety magnitude

Reading the agent column. VALIDATION SIGNAL -- the agent is already approved / established standard for this disease, so the direction logic recovered known clinical practice. Not a new claim by this kit. GENUINE HYPOTHESIS -- no approved indication for this disease; the direction match is a direction-only, untested [O] lead. Basis field grades the evidence (investigational here / in a related condition / off-label / speculative).