rs758682659
Variant summary
Our verdict is Uncertain significance. The variant received -1 ACMG points: 0P and 1B. BP4
This summary comes from the ClinGen Evidence Repository: NM_001754.5(RUNX1):c.899C>T (p.Thr300Met) is a missense variant which has a REVEL score < 0.50 (0.423) and a SpliceAI score of 0 (BP4). This variant has been observed in gnomAD v2.1 at a MAF of 0.00005274 (0.005274%, 6/113766) in the European (non-Finnish) sub-population, but does not meet any population criteria. It has not been reported in individuals with a RUNX1-defined phenotype. In summary, the clinical significance of this variant is uncertain. ACMG/AMP criteria applied, as specified by the Myeloid Malignancy Variant Curation Expert Panel for RUNX1: BP4. LINK:https://erepo.genome.network/evrepo/ui/classification/CA10014273/MONDO:0011071/008
Frequency
Consequence
NM_001754.5 missense
Scores
Clinical Significance
Conservation
Publications
- hereditary thrombocytopenia and hematologic cancer predisposition syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae)
- acute myeloid leukemiaInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
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ACMG classification
Our verdict: Uncertain_significance. The variant received -1 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RUNX1 | NM_001754.5 | c.899C>T | p.Thr300Met | missense_variant | Exon 8 of 9 | ENST00000675419.1 | NP_001745.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| RUNX1 | ENST00000675419.1 | c.899C>T | p.Thr300Met | missense_variant | Exon 8 of 9 | NM_001754.5 | ENSP00000501943.1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152228Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000278 AC: 7AN: 251492 AF XY: 0.0000368 show subpopulations
GnomAD4 exome AF: 0.0000130 AC: 19AN: 1461888Hom.: 0 Cov.: 31 AF XY: 0.0000193 AC XY: 14AN XY: 727246 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152228Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74386 show subpopulations
ClinVar
Submissions by phenotype
Inborn genetic diseases Uncertain:1
The p.T300M variant (also known as c.899C>T), located in coding exon 7 of the RUNX1 gene, results from a C to T substitution at nucleotide position 899. The threonine at codon 300 is replaced by methionine, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -
not provided Uncertain:1
In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Hereditary thrombocytopenia and hematologic cancer predisposition syndrome Uncertain:1
NM_001754.5(RUNX1):c.899C>T (p.Thr300Met) is a missense variant which has a REVEL score < 0.50 (0.423) and a SpliceAI score of 0 (BP4). This variant has been observed in gnomAD v2.1 at a MAF of 0.00005274 (0.005274%, 6/113766) in the European (non-Finnish) sub-population, but does not meet any population criteria. It has not been reported in individuals with a RUNX1-defined phenotype. In summary, the clinical significance of this variant is uncertain. ACMG/AMP criteria applied, as specified by the Myeloid Malignancy Variant Curation Expert Panel for RUNX1: BP4. -
Hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1 Uncertain:1
This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 300 of the RUNX1 protein (p.Thr300Met). This variant is present in population databases (rs758682659, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with RUNX1-related conditions. ClinVar contains an entry for this variant (Variation ID: 409809). 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) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on RUNX1 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. -
Acute myeloid leukemia Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at