TBRG1

Chr 11

transforming growth factor beta regulator 1

Also known as: NIAM, TB-5

Involved in several processes, including DNA replication; protein localization to nucleoplasm; and protein stabilization. Located in nucleoplasm. [provided by Alliance of Genome Resources, Jul 2025]

0
Active trials
1
Pubs (1 yr)
61
P/LP submissions
2%
P/LP missense
0.86
LOEUF
DN
Mechanism· predicted
Clinical SummaryTBRG1
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
61 unique Pathogenic / Likely Pathogenic· 67 VUS of 140 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.86LOEUF
pLI 0.000
Z-score 1.99
OE 0.50 (0.300.86)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
0.81Z-score
OE missense 0.84 (0.740.95)
175 obs / 207.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.50 (0.300.86)
00.351.4
Missense OE0.84 (0.740.95)
00.61.4
Synonymous OE0.80
01.21.6
LoF obs/exp: 9 / 18.2Missense obs/exp: 175 / 207.9Syn Z: 1.38
DN
0.6455th %ile
GOF
0.3391th %ile
LOF
0.4726th %ile

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

140 submitted variants in ClinVar

Classification Summary

Pathogenic58
Likely Pathogenic3
VUS67
Likely Benign2
58
Pathogenic
3
Likely Pathogenic
67
VUS
2
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
58
0
58
Likely Pathogenic
0
1
2
0
3
VUS
1
60
6
0
67
Likely Benign
0
1
0
1
2
Benign
0
0
0
0
0
Total162661130

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

View in ClinVar →

Protein Context — Lollipop Plot

TBRG1 · 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.

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Clinical Literature
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