NM_139027.6:c.587C>T
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM1PM2PP3_ModeratePP5_Very_Strong
The NM_139027.6(ADAMTS13):c.587C>T(p.Thr196Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000267 in 1,612,994 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 Pathogenic (★★).
Frequency
Consequence
NM_139027.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000328 AC: 5AN: 152238Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000798 AC: 2AN: 250640Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135658
GnomAD4 exome AF: 0.0000260 AC: 38AN: 1460756Hom.: 0 Cov.: 36 AF XY: 0.0000289 AC XY: 21AN XY: 726776
GnomAD4 genome AF: 0.0000328 AC: 5AN: 152238Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74372
ClinVar
Submissions by phenotype
not provided Pathogenic:2
This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 196 of the ADAMTS13 protein (p.Thr196Ile). This variant is present in population databases (rs121908470, gnomAD 0.004%). This missense change has been observed in individual(s) with thrombotic thrombocytopenic purpura (PMID: 11586351, 14512317, 22783805, 29554699). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 5801). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt ADAMTS13 protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects ADAMTS13 function (PMID: 22783805). For these reasons, this variant has been classified as Pathogenic. -
PS3, PS4_Moderate, PM2, PM3, PP3, PP4 -
Upshaw-Schulman syndrome Pathogenic:2
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at