MYCT1

Chr 6

MYC target 1

Also known as: MTLC

MYCT1 encodes a nuclear protein that regulates MYC target genes and is predicted to function in hematopoietic stem cell homeostasis. The gene has very low constraint against loss-of-function variants (pLI 0.0004, LOEUF 1.45), suggesting that heterozygous loss-of-function mutations are likely tolerated. No definitive human disease associations have been established for MYCT1 mutations.

OMIMResearchSummary from RefSeq, UniProt
MultiplemechanismLOEUF 1.45
Clinical SummaryMYCT1
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.45LOEUF
pLI 0.000
Z-score 0.68
OE 0.74 (0.411.45)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-0.13Z-score
OE missense 1.03 (0.891.20)
127 obs / 122.9 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE0.74 (0.411.45)
00.351.4
Missense OE1.03 (0.891.20)
00.61.4
Synonymous OE1.03
01.21.6
LoF obs/exp: 6 / 8.1Missense obs/exp: 127 / 122.9Syn Z: -0.14
DN
0.78top 25%
GOF
0.77top 25%
LOF
0.3163th %ile

This gene has evidence for multiple mechanisms of pathogenicity (dominant-negative and gain-of-function). Both the Badonyi & Marsh prediction and the broader genomic evidence point to dominant-negative as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

DNprediction above median
GOFprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

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

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

MYCT1 · protein map & ClinVar variants

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

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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