NM_206933.4:c.11404G>A
Variant summary
Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2
The NM_206933.4(USH2A):c.11404G>A(p.Glu3802Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00175 in 1,596,618 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_206933.4 missense
Scores
Clinical Significance
Conservation
Publications
- Usher syndrome type 2Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- Usher syndrome type 2AInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
- retinitis pigmentosa 39Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
- retinitis pigmentosaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Benign. The variant received -16 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| USH2A | NM_206933.4 | c.11404G>A | p.Glu3802Lys | missense_variant | Exon 59 of 72 | ENST00000307340.8 | NP_996816.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00162 AC: 234AN: 144234Hom.: 1 Cov.: 26 show subpopulations
GnomAD2 exomes AF: 0.00249 AC: 621AN: 249888 AF XY: 0.00246 show subpopulations
GnomAD4 exome AF: 0.00177 AC: 2567AN: 1452288Hom.: 7 Cov.: 32 AF XY: 0.00182 AC XY: 1318AN XY: 722656 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00162 AC: 234AN: 144330Hom.: 1 Cov.: 26 AF XY: 0.00189 AC XY: 132AN XY: 69886 show subpopulations ⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:4
Variant summary: USH2A c.11404G>A (p.Glu3802Lys) results in a conservative amino acid change located in the Fibronectin type III domain (IPR003961) of the encoded protein sequence. Five of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.0025 in 249888 control chromosomes in the gnomAD database, including 3 homozygotes. This frequency is not significantly higher than estimated for a pathogenic variant in USH2A causing Usher Syndrome (0.0025 vs 0.011), allowing no conclusion about variant significance. To our knowledge, no penetrant association of c.11404G>A in individuals affected with Usher Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. Three clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as benign. Based on the evidence outlined above, the variant was classified as benign. -
p.Glu3802Lys in exon 59 of USH2A: This variant is not expected to have clinical significance because it has been identified in 1.3% (280/21974) of Finnish chrom osomes including 2 homozygotes by the Genome Aggregation Database (gnomAD, http: //gnomad.broadinstitute.org; dbSNP rs147900972). In addition, computational anal yses do not suggest a high likelihood of clinical significance primarily based u pon a lack of conservation across species including mammals. Of note, orangutan, rat, mouse, dog and cow have a lysine at this position despite high nearby amin o acid conservation. -
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not provided Benign:4
USH2A: BP4, BS2 -
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This variant is associated with the following publications: (PMID: 32707200) -
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Retinitis pigmentosa 39 Benign:1
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Usher syndrome type 2A Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at