TCF4 p.Ser140=
c.420G>A · rs763742755 · VCV212380
Conflicting classifications of pathogenicity
Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00669%, eas)
Conditions
1
Pitt-Hopkins syndrome
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 0.54 | GERP -1.2, phastCons 1 |
| Overall | ||
| CADD | 13.13 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00669%
East Asian · 3/44,870 alleles
Filtering AF
0.00177%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000891%
Overall
0.000806%
13/1,613,376 alleles · very rare
exomes 11/1,461,306 · genomes 2/152,070 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.00669% | 14,957 |
| African / African-American | 0.00267% | 37,433 |
| European (non-Finnish) | 0.000678% | 147,449 |
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- TCF4
- Protein
- p.Ser140=
- Coding
- c.420G>A
- MANE Select
- NM_001083962
- dbSNP
- rs763742755
- Type
- single nucleotide variant
- Location
- chr18:55350953 (GRCh38)
- Gene constraint
- LOEUF 0.096 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 52.08 · 5 PDB
- Residue 140
- the 'disordered' region
Similar variants
- TCF4 p.Arg576Gln Pathogenic ★★★ same condition
- TCF4 p.Arg578His Pathogenic ★★★ same condition
- TCF4 p.Arg580Gln Pathogenic ★★★ same condition
- TCF4 p.Arg580Trp Pathogenic ★★★ same condition
- TCF4 p.Arg582Cys Likely pathogenic ★★★ same condition
- TCF4 p.Gly496Cys Likely pathogenic ★★★ ⚠ same condition
- TCF4 p.Gly592Ser Likely pathogenic ★★★ same condition
- TCF4 p.Leu609Pro Likely pathogenic ★★★ same condition
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/tcf4-p-ser140 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown