rs1553808038
Positions:
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_StrongPM2PP5_Moderate
The NM_000313.4(PROS1):c.1991_1992insA(p.His664GlnfsTer35) variant causes a frameshift change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).
Frequency
Genomes: not found (cov: 32)
Consequence
PROS1
NM_000313.4 frameshift
NM_000313.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 4.94
Genes affected
PROS1 (HGNC:9456): (protein S) This gene encodes a vitamin K-dependent plasma protein that functions as a cofactor for the anticoagulant protease, activated protein C (APC) to inhibit blood coagulation. It is found in plasma in both a free, functionally active form and also in an inactive form complexed with C4b-binding protein. Mutations in this gene result in autosomal dominant hereditary thrombophilia. An inactive pseudogene of this locus is located at an adjacent region on chromosome 3. Alternative splicing results in multiple transcript variants encoding different isoforms that may undergo similar processing to generate mature protein. [provided by RefSeq, Oct 2015]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
PVS1
?
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 8 pathogenic variants in the truncated region.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 3-93874284-G-GT is Pathogenic according to our data. Variant chr3-93874284-G-GT is described in ClinVar as [Pathogenic]. Clinvar id is 472998.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PROS1 | NM_000313.4 | c.1991_1992insA | p.His664GlnfsTer35 | frameshift_variant | 15/15 | ENST00000394236.9 | |
PROS1 | NM_001314077.2 | c.2087_2088insA | p.His696GlnfsTer35 | frameshift_variant | 16/16 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PROS1 | ENST00000394236.9 | c.1991_1992insA | p.His664GlnfsTer35 | frameshift_variant | 15/15 | 1 | NM_000313.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Thrombophilia due to protein S deficiency, autosomal recessive Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Oct 28, 2022 | For these reasons, this variant has been classified as Pathogenic. This variant disrupts a region of the PROS1 protein in which other variant(s) (p.Pro667Leu) have been determined to be pathogenic (PMID: 10790208, 20181378, 29748776, 30669159; Invitae). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. ClinVar contains an entry for this variant (Variation ID: 472998). This variant has not been reported in the literature in individuals affected with PROS1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change results in a frameshift in the PROS1 gene (p.His664Glnfs*35). While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 13 amino acid(s) of the PROS1 protein and extend the protein by 21 additional amino acid residues. - |
Computational scores
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Calibrated prediction
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Prediction
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at