rs768165720
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.
The NM_003865.3(HESX1):c.326G>A(p.Arg109Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000744 in 1,613,968 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_003865.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
HESX1 | ENST00000295934.8 | c.326G>A | p.Arg109Gln | missense_variant | Exon 2 of 4 | 1 | NM_003865.3 | ENSP00000295934.3 | ||
HESX1 | ENST00000647958.1 | c.326G>A | p.Arg109Gln | missense_variant | Exon 5 of 7 | ENSP00000498190.1 | ||||
HESX1 | ENST00000473921.2 | c.326G>A | p.Arg109Gln | missense_variant | Exon 2 of 3 | 5 | ENSP00000418918.1 | |||
HESX1 | ENST00000495160.2 | c.*5G>A | downstream_gene_variant | 3 | ENSP00000419615.2 |
Frequencies
GnomAD3 genomes AF: 0.0000986 AC: 15AN: 152118Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000756 AC: 19AN: 251306Hom.: 0 AF XY: 0.0000810 AC XY: 11AN XY: 135838
GnomAD4 exome AF: 0.0000718 AC: 105AN: 1461850Hom.: 0 Cov.: 31 AF XY: 0.0000784 AC XY: 57AN XY: 727226
GnomAD4 genome AF: 0.0000986 AC: 15AN: 152118Hom.: 0 Cov.: 32 AF XY: 0.000135 AC XY: 10AN XY: 74322
ClinVar
Submissions by phenotype
not provided Uncertain:3
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A published functional study suggests impaired protein function with reduced DNA binding ability and impaired ability to repress PROP-mediatd activation, however, the significance of these results are uncertain (Takagi et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; This variant is associated with the following publications: (PMID: 14558921, 26781211, 28332357, 9100579) -
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Male infertility with spermatogenesis disorder Pathogenic:1
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Septo-optic dysplasia sequence;C2750027:GROWTH HORMONE DEFICIENCY WITH PITUITARY ANOMALIES Uncertain:1
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 109 of the HESX1 protein (p.Arg109Gln). This variant is present in population databases (rs768165720, gnomAD 0.02%). This missense change has been observed in individual(s) with clinical features of septo-optic dysplasia (PMID: 26781211, 28332357). ClinVar contains an entry for this variant (Variation ID: 497545). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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. -
Septo-optic dysplasia sequence Uncertain:1
The missense variant p.R109Q in HESX1 (NM_003865.3) has been previously reported in heterozygous state in an affected Japanese child. Functional studies revealed a damaging effect (Takagi M et al). The variant has been submitted to ClinVar as Uncertain Significance. The missense variant c.326G>A (p.R109Q) in HESX1 (NM_003865.3) is observed in 4/18394 (0.0217%) alleles from individuals of East Asian background in the gnomAD dataset (Exome Aggregation Consortium et al., 2016), but was not seen in the homozygous state. The p.R109Q missense variant is predicted to be damaging by both SIFT and PolyPhen2. The arginine residue at codon 109 of HESX1 is conserved in all mammalian species. The nucleotide c.326 in HESX1 is predicted conserved by GERP++ and PhyloP across 100 vertebrates. For these reasons, this variant has been classified as Uncertain Significance -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at