MTX1

Chr 1

metaxin 1

Also known as: MTX, MTXN

Predicted to be involved in mitochondrion organization. Located in mitochondrion. Part of SAM complex. [provided by Alliance of Genome Resources, Jul 2025]

OMIMResearchGenerating clinical summary…
GOFmechanismLOEUF 0.72
Clinical SummaryMTX1
Population Constraint (gnomAD)
Low constraint (pLI 0.01) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
38 VUS of 55 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
0.72LOEUF
pLI 0.013
Z-score 2.40
OE 0.36 (0.200.72)
Tolerant

Typical tolerance to LoF variation

Missense Constraint?
-0.19Z-score
OE missense 1.04 (0.921.17)
197 obs / 189.6 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios?
LoF OE?0.36 (0.200.72)
00.351.4
Missense OE?1.04 (0.921.17)
00.61.4
Synonymous OE?1.13
01.21.6
LoF obs/exp: 6 / 16.5Missense obs/exp: 197 / 189.6Syn Z: -0.90

This gene — mechanism propensity

DN
0.6064th %ile
GOF
0.6737th %ile
LOF
0.3746th %ile

The highest-scoring mechanism for this gene is gain-of-function.

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

55 submitted variants in ClinVar

Classification Summary

VUS38
Benign1
38
VUS
1
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
0
0
0
Likely Pathogenic
0
0
0
0
0
VUS
0
32
6
0
38
Likely Benign
0
0
0
0
0
Benign
0
1
0
0
1
Total0336039

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

14 pathogenic / likely-pathogenic (of 21) ClinVar copy-number / structural variants overlap MTX1 — these span large chromosomal regions, not the gene specifically, and are excluded from the counts above. Explore in CNV tools →

Protein Context — Lollipop Plot

MTX1 · protein map & ClinVar variants

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

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →