rs149905713
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BS1_SupportingBS2
The NM_003923.3(FOXH1):c.386G>A(p.Arg129Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000139 in 1,607,324 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_003923.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -5 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000526 AC: 8AN: 152234Hom.: 0 Cov.: 34
GnomAD3 exomes AF: 0.0000480 AC: 11AN: 229214Hom.: 0 AF XY: 0.0000475 AC XY: 6AN XY: 126364
GnomAD4 exome AF: 0.000148 AC: 216AN: 1455090Hom.: 0 Cov.: 35 AF XY: 0.000146 AC XY: 106AN XY: 723668
GnomAD4 genome AF: 0.0000526 AC: 8AN: 152234Hom.: 0 Cov.: 34 AF XY: 0.0000403 AC XY: 3AN XY: 74376
ClinVar
Submissions by phenotype
Holoprosencephaly sequence Uncertain:2
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 129 of the FOXH1 protein (p.Arg129Gln). This variant is present in population databases (rs149905713, gnomAD 0.009%). This variant has not been reported in the literature in individuals affected with FOXH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 577331). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt FOXH1 protein function with a negative predictive value of 80%. 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. -
Inborn genetic diseases Uncertain:1
The c.386G>A (p.R129Q) alteration is located in exon 3 (coding exon 3) of the FOXH1 gene. This alteration results from a G to A substitution at nucleotide position 386, causing the arginine (R) at amino acid position 129 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
FOXH1-related disorder Uncertain:1
The FOXH1 c.386G>A variant is predicted to result in the amino acid substitution p.Arg129Gln. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0089% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/8-145700333-C-T). Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at