rs755377592
Variant summary
Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PP2PP3_StrongPP5_Moderate
The NM_019616.4(F7):c.1219G>A(p.Ala407Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000198 in 1,612,338 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 (★). Synonymous variant affecting the same amino acid position (i.e. A407A) has been classified as Uncertain significance.
Frequency
Consequence
NM_019616.4 missense
Scores
Clinical Significance
Conservation
Publications
- congenital factor VII deficiencyInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, Orphanet, Ambry Genetics
- factor VII deficiencyInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_pathogenic. The variant received 7 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| F7 | ENST00000346342.8 | c.1219G>A | p.Ala407Thr | missense_variant | Exon 8 of 8 | 1 | NM_019616.4 | ENSP00000329546.4 | ||
| F7 | ENST00000375581.3 | c.1285G>A | p.Ala429Thr | missense_variant | Exon 9 of 9 | 1 | ENSP00000364731.3 | |||
| F7 | ENST00000541084.5 | c.1033G>A | p.Ala345Thr | missense_variant | Exon 6 of 6 | 2 | ENSP00000442051.2 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152200Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000765 AC: 19AN: 248338 AF XY: 0.0000740 show subpopulations
GnomAD4 exome AF: 0.0000205 AC: 30AN: 1460138Hom.: 0 Cov.: 33 AF XY: 0.0000179 AC XY: 13AN XY: 726316 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152200Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74354 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Congenital factor VII deficiency;C1832662:Myocardial infarction, susceptibility to Pathogenic:1
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Factor VII deficiency Pathogenic:1
Our laboratory reported dual molecular diagnoses in F7 (NM_000131.4, c.1285G>A) and MECP2 (NM_004992.3, c.332G>A) in this individual with reported features of motor delay, intellectual disability, hypotonia, bilateral sensorineural hearing loss, skeletal abnormalities, hypertrichosis, and factor VII deficiency. The F7 variant has been previously found in patients with Factor VII deficiency (FA7D) [MIM:227500] (PMID 18976247), and is considered likely pathogenic. The patient's mother was similarly affected with factor VII deficiency and was homozygous for the variant. Heterozygotes are expected to be asymptomatic carriers. -
F7-related disorder Pathogenic:1
The F7 c.1285G>A variant is predicted to result in the amino acid substitution p.Ala429Thr. This variant (aka p.Ala369Thr) has been reported in individuals with Factor VII deficiency (Herrmann et al 2009. PubMed ID: 18976247; Ravanbod et al. 2022. PubMed ID: 36760778; Pshenichnikova et al. 2023. PubMed ID: 37761907). A different missense substitution at this same codon (c.1286C>T, Ala429Val) has been reported in an individual with factor VII deficiency (Tang et al. 2022. PubMed ID: 35349734) suggesting that substitution of amino acid residue Ala429 is not tolerated. This variant is reported in 0.041% of alleles in individuals of Latino descent in gnomAD. This variant is interpreted as likely pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at