TSC22D1

Chr 13

TSC22 domain family member 1

Also known as: HUCEP-2, Ptg-2, TGFB1I4, TSC22

This gene encodes a leucine zipper transcription factor that represses transcription of multiple genes including C-type natriuretic peptide and regulates TGF-beta signaling pathways involved in apoptosis and tumor suppression. The gene is highly constrained against loss-of-function variants (pLI 0.96, LOEUF 0.33), but no established Mendelian disease associations have been reported in the provided data. A promoter polymorphism has been associated with diabetic nephropathy susceptibility.

OMIMResearchSummary from RefSeq, UniProt
LOFmechanismLOEUF 0.33
Clinical SummaryTSC22D1
Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 0.96). One damaged copy is likely sufficient to cause disease.
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ClinVar Variants
51 unique Pathogenic / Likely Pathogenic· 20 VUS of 82 total submissions
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Clinical Trials
1 active or recruiting trial — potential therapeutic options may be available

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint
0.33LOEUF
pLI 0.960
Z-score 4.43
OE 0.16 (0.080.33)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint
-0.88Z-score
OE missense 1.10 (1.031.18)
621 obs / 562.2 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE0.16 (0.080.33)
00.351.4
Missense OE1.10 (1.031.18)
00.61.4
Synonymous OE1.28
01.21.6
LoF obs/exp: 5 / 32.1Missense obs/exp: 621 / 562.2Syn Z: -3.28
DN
0.2798th %ile
GOF
0.3292th %ile
LOF
0.79top 5%

The highest-scoring mechanism for this gene is loss-of-function (haploinsufficiency).

LOFprediction above median · LOEUF 0.33

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.

ClinVar Variant Classifications

82 submitted variants in ClinVar

Classification Summary

Pathogenic51
VUS20
Likely Benign3
Benign2
51
Pathogenic
20
VUS
3
Likely Benign
2
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
51
0
51
Likely Pathogenic
0
0
0
0
0
VUS
1
18
1
0
20
Likely Benign
0
2
0
1
3
Benign
0
0
0
2
2
Total12052376

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

View in ClinVar →

Protein Context — Lollipop Plot

TSC22D1 · 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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