rs200124801
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The ENST00000266732.8(TMPO):c.1048C>G(p.Gln350Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000743 in 1,614,076 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q350R) has been classified as Likely benign.
Frequency
Consequence
ENST00000266732.8 missense
Scores
Clinical Significance
Conservation
Publications
- familial isolated dilated cardiomyopathyInheritance: AD Classification: SUPPORTIVE, NO_KNOWN Submitted by: ClinGen, Orphanet
- dilated cardiomyopathyInheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics
- hypertrophic cardiomyopathyInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -6 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| TMPO | NM_001032283.3 | c.565+1467C>G | intron_variant | Intron 3 of 8 | ENST00000556029.6 | NP_001027454.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152182Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251068 AF XY: 0.0000368 show subpopulations
GnomAD4 exome AF: 0.00000684 AC: 10AN: 1461776Hom.: 0 Cov.: 32 AF XY: 0.00000963 AC XY: 7AN XY: 727196 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152300Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74478 show subpopulations
ClinVar
Submissions by phenotype
Loeys-Dietz syndrome 2 Uncertain:1
This sequence change replaces glutamine, which is neutral and polar, with glutamic acid, which is acidic and polar, at codon 350 of the TMPO protein (p.Gln350Glu). This variant is present in population databases (rs200124801, gnomAD 0.006%). 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: 1014533). 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 TMPO protein function with a negative predictive value of 80%. 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