rs148235227
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6
The ENST00000381178.5(TH):c.134C>T(p.Pro45Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000257 in 1,600,356 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P45P) has been classified as Likely benign.
Frequency
Consequence
ENST00000381178.5 missense
Scores
Clinical Significance
Conservation
Publications
- TH-deficient dopa-responsive dystoniaInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
- tyrosine hydroxylase deficiencyInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen, Myriad Women’s Health
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ACMG classification
Our verdict: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000113 AC: 17AN: 150710Hom.: 0 Cov.: 30 show subpopulations
GnomAD2 exomes AF: 0.000152 AC: 34AN: 223280 AF XY: 0.000180 show subpopulations
GnomAD4 exome AF: 0.000272 AC: 394AN: 1449530Hom.: 0 Cov.: 33 AF XY: 0.000271 AC XY: 195AN XY: 720160 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000113 AC: 17AN: 150826Hom.: 0 Cov.: 30 AF XY: 0.000136 AC XY: 10AN XY: 73688 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Autosomal recessive DOPA responsive dystonia Uncertain:3
This variant was classified as: Uncertain significance. The available evidence on this variant's pathogenicity is insufficient or conflicting. The following ACMG criteria were applied in classifying this variant: No criteria apply. -
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This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 45 of the TH protein (p.Pro45Leu). This variant is present in population databases (rs148235227, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with TH-related conditions. ClinVar contains an entry for this variant (Variation ID: 567057). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt TH protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Inborn genetic diseases Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at