12-98515893-C-T
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2
The NM_001032283.3(TMPO):c.26C>T(p.Ser9Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000558 in 1,613,612 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_001032283.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
TMPO | NM_001032283.3 | c.26C>T | p.Ser9Leu | missense_variant | Exon 1 of 9 | ENST00000556029.6 | NP_001027454.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152208Hom.: 0 Cov.: 33
GnomAD4 exome AF: 0.00000479 AC: 7AN: 1461404Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727034
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152208Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74350
ClinVar
Submissions by phenotype
not specified Uncertain:1
The p.S9L variant (also known as c.26C>T), located in coding exon 1 of the TMPO gene, results from a C to T substitution at nucleotide position 26. The serine at codon 9 is replaced by leucine, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Loeys-Dietz syndrome 2 Uncertain:1
This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 9 of the TMPO protein (p.Ser9Leu). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with TMPO-related conditions. ClinVar contains an entry for this variant (Variation ID: 2562958). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at