DMRT3

Chr 9

doublesex and mab-3 related transcription factor 3

Also known as: DMRTA3

Encodes a transcription factor that regulates spinal cord interneuron specification and development of locomotor circuits controlling coordinated limb movements and gait. Mutations cause autosomal recessive developmental and epileptic encephalopathy-52 with abnormal gait and movement disorders. This gene is highly constrained against loss-of-function variants, indicating that biallelic mutations likely represent severe disruptions to normal protein function.

OMIMResearchSummary from RefSeq, UniProt
DNmechanismLOEUF 1.17
Clinical SummaryDMRT3
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
56 unique Pathogenic / Likely Pathogenic· 118 VUS of 200 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.17LOEUF
pLI 0.000
Z-score 1.09
OE 0.69 (0.421.17)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-1.69Z-score
OE missense 1.30 (1.181.42)
335 obs / 258.5 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE0.69 (0.421.17)
00.351.4
Missense OE1.30 (1.181.42)
00.61.4
Synonymous OE1.24
01.21.6
LoF obs/exp: 10 / 14.5Missense obs/exp: 335 / 258.5Syn Z: -2.09
DN
0.6647th %ile
GOF
0.3789th %ile
LOF
0.49top 25%

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction 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

200 submitted variants in ClinVar

Classification Summary

Pathogenic50
Likely Pathogenic6
VUS118
Likely Benign11
Benign7
50
Pathogenic
6
Likely Pathogenic
118
VUS
11
Likely Benign
7
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
50
0
50
Likely Pathogenic
0
1
5
0
6
VUS
0
100
18
0
118
Likely Benign
0
7
0
4
11
Benign
0
4
0
3
7
Total0112737192

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

View in ClinVar →

Protein Context — Lollipop Plot

DMRT3 · 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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