Is TH p.Ser157fs (c.469delinsCTCACCCTTGG) pathogenic?

TH p.Ser157fs (c.469delinsCTCACCCTTGG) is classified Likely pathogenic in TH (ClinVar, Single submitter, 1 submitter; last evaluated 2022-03-14). No gnomAD frequency available for this variant; Associated with TH-deficient dopa-responsive dystonia.

What condition is associated with TH p.Ser157fs (c.469delinsCTCACCCTTGG)?

TH p.Ser157fs (c.469delinsCTCACCCTTGG) is associated with TH-deficient dopa-responsive dystonia (ClinVar).

How common is TH p.Ser157fs (c.469delinsCTCACCCTTGG) in the general population?

TH p.Ser157fs (c.469delinsCTCACCCTTGG) is no gnomAD frequency available for this variant (gnomAD).

How is Autosomal recessive dopa-responsive dystonia inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

TH p.Ser157fs

c.469delinsCTCACCCTTGG · rs2495820282 · VCV1725202

Likely pathogenic Single submitter

Classification

Likely pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

Consequence

frameshift

predicted LoF

gnomAD v4.1

Not reported

no gnomAD frequency available for this variant

Conditions

TH-deficient dopa-responsive dystonia

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	frameshift	predicted loss-of-function
NMD	predicted	premature termination codon in exon 3 of 13
Splicing
SpliceAI	—	not assessed · substitutions only
Constraint at this position
Conservation	phyloP 2	GERP -1.6, phastCons 0.96

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

dbSNP / gnomAD

No gnomAD frequency available for this variant. This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: TH
Protein: p.Ser157fs
Coding: c.469delinsCTCACCCTTGG
MANE Select: NM_000360
dbSNP: rs2495820282
Type: Indel
Location: chr11:2168509 (GRCh38)
Gene constraint: LOEUF 1.27 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 81.75 · 7 PDB

Full TH gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

TH-deficient dopa-responsive dystonia — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Autosomal recessive dopa-responsive dystonia (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

TH p.Glu375Ter Pathogenic/Likely pathogenic ★★ same condition
TH c.1201-2_1201-1delinsCC Likely pathogenic ★ same condition
TH c.696-1_698delinsCGAG Likely pathogenic ★ same condition
TH p.Ser157Arg Uncertain significance ★ ⚠ same residue
TH c.696-8_696-7delinsCT Likely benign ★ same condition
TH c.1200+2T>C Likely pathogenic ★★ same condition
TH c.1334+1G>A Likely pathogenic ★★ same condition
TH c.312+1G>A 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/th-p-ser157fs (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown