rs773905328
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_000128.4(F11):c.1107C>A(p.Tyr369*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,760 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 Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_000128.4 stop_gained
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 18 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152122Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000358 AC: 9AN: 251352Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135846
GnomAD4 exome AF: 0.00000479 AC: 7AN: 1461638Hom.: 0 Cov.: 33 AF XY: 0.00000275 AC XY: 2AN XY: 727132
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152122Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74306
ClinVar
Submissions by phenotype
Hereditary factor XI deficiency disease Pathogenic:3
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Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0103 - Dominant negative and loss of function are known mechanisms of disease in this gene and are associated with factor XI deficiency. Dominant missense variants have been shown to have a dominant negative disease mechanism (PMID:15026311), whilst loss of function variants are generally recessive, though symptomatic carriers have been reported (OMIM). (I) 0108 - This gene is associated with both recessive and dominant disease. Individuals with biallelic variants generally have a more severe phenotype. Heterozygous individuals may be asymptomatic despite having FXI deficiency (PMID:18446632). (I) 0115 - Variants in this gene are known to have variable expressivity. There is a high degree of variable expression, with intrafamilial variation reported (PMID: 32118380). (I) 0201 - Variant is predicted to cause nonsense-mediated decay (NMD) and loss of protein (premature termination codon is located at least 54 nucleotides upstream of the final exon-exon junction). (SP) 0251 - This variant is heterozygous. (I) 0304 - Variant is present in gnomAD (v2) <0.001 for a condition (10 heterozygotes, 0 homozygotes). (SP) 0701 - Other NMD predicted variants comparable to the one identified in this case have very strong previous evidence for pathogenicity (ClinVar). (SP) 0801 - This variant has strong previous evidence of pathogenicity in unrelated individuals. This variant has been reported in multiple homozygous and compound heterozygous individuals with Factor XI deficiency including two unaffected homozygous probands (ClinVar, PMID: 14508802, 25681615, 27067486, 32464451, 32333264, 34799507). Among those, two unaffected heterozygous daughters of an affected proband also demonstrated reduced F11 activity (PMID: 14508802). (SP) 1206 - This variant has been shown to be paternally inherited (by trio analysis). (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -
not provided Pathogenic:1
This sequence change creates a premature translational stop signal (p.Tyr369*) in the F11 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in F11 are known to be pathogenic (PMID: 23929304). This variant is present in population databases (rs773905328, gnomAD 0.04%). This premature translational stop signal has been observed in individual(s) with clinical features of autosomal recessive factor XI deficiency (PMID: 14508802, 25681615, 32220196). This variant is also known as Tyr351-->Term and p.Tyr351X. ClinVar contains an entry for this variant (Variation ID: 189115). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at