SCYL1

Chr 11AR

SCY1 like pseudokinase 1

This protein functions as a transcriptional regulator that activates telomerase reverse transcriptase and DNA polymerase beta genes, and regulates COPI-mediated retrograde protein traffic between the Golgi apparatus and endoplasmic reticulum. Mutations cause spinocerebellar ataxia, autosomal recessive 21, which follows autosomal recessive inheritance. The gene shows relatively low constraint to loss-of-function variation (pLI near zero, LOEUF 0.677).

OMIMResearchSummary from RefSeq, OMIM, UniProt
LOFmechanismARLOEUF 0.681 OMIM phenotype
Clinical SummarySCYL1
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
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Clinical Trials
1 active or recruiting trial — potential therapeutic options may be available
Some data sources returned errors (1)

ncbi: Error: NCBI fetch failed: 429 https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.68LOEUF
pLI 0.000
Z-score 3.25
OE 0.47 (0.330.68)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
1.33Z-score
OE missense 0.83 (0.770.90)
405 obs / 487.8 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.47 (0.330.68)
00.351.4
Missense OE0.83 (0.770.90)
00.61.4
Synonymous OE1.01
01.21.6
LoF obs/exp: 20 / 43.0Missense obs/exp: 405 / 487.8Syn Z: -0.06
Curated Mechanism (G2P)Gene2Phenotype (DDG2P) ↗
strongSCYL1-related episodes of liver failure, peripheral neuropathy, cerebellar atrophy, and ataxiaLOFAR

Predictions shown for reference only — model trained on dominant genes, not applicable to AR conditions.

DN
0.6355th %ile
GOF
0.5955th %ile
LOF
0.3549th %ile

The Badonyi & Marsh prediction model was trained exclusively on dominant disease genes. Predictions are not reliable for genes with autosomal recessive inheritance and are shown at reduced opacity for reference only.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

SCYL1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold
Clinical Literature
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