11-533509-C-T
Variant summary
Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4BP6BS1BS2
The NM_005343.4(HRAS):c.394G>A(p.Asp132Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000477 in 1,613,596 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D132G) has been classified as Uncertain significance.
Frequency
Consequence
NM_005343.4 missense
Scores
Clinical Significance
Conservation
Publications
- ciliary dyskinesia, primary, 39Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae)
- primary ciliary dyskinesiaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Benign. The variant received -10 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt | 
|---|---|---|---|---|---|---|---|---|---|---|
| HRAS | ENST00000311189.8 | c.394G>A | p.Asp132Asn | missense_variant | Exon 4 of 6 | 1 | NM_005343.4 | ENSP00000309845.7 | ||
| HRAS | ENST00000417302.7 | c.394G>A | p.Asp132Asn | missense_variant | Exon 4 of 6 | 5 | NM_176795.5 | ENSP00000388246.1 | 
Frequencies
GnomAD3 genomes  0.00000657  AC: 1AN: 152214Hom.:  0  Cov.: 33 show subpopulations 
GnomAD2 exomes  AF:  0.0000159  AC: 4AN: 251164 AF XY:  0.00   show subpopulations 
GnomAD4 exome  AF:  0.0000520  AC: 76AN: 1461382Hom.:  0  Cov.: 35 AF XY:  0.0000385  AC XY: 28AN XY: 727022 show subpopulations 
Age Distribution
GnomAD4 genome  0.00000657  AC: 1AN: 152214Hom.:  0  Cov.: 33 AF XY:  0.0000134  AC XY: 1AN XY: 74368 show subpopulations 
ClinVar
Submissions by phenotype
not specified    Uncertain:1 
Variant summary: HRAS c.394G>A (p.Asp132Asn) results in a conservative amino acid change located in the Small GTP-binding domain (IPR005225) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 1.6e-05 in 251164 control chromosomes, predominantly at a frequency of 3.5e-05 within the Non-Finnish European subpopulation in the gnomAD database. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.394G>A in individuals affected with Costello Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 567281). Based on the evidence outlined above, the variant was classified as uncertain significance. -
Costello syndrome    Uncertain:1 
This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 132 of the HRAS protein (p.Asp132Asn). This variant is present in population databases (rs759893630, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with HRAS-related conditions. ClinVar contains an entry for this variant (Variation ID: 567281). Invitae Evidence Modeling incorporating data from in vitro experimental studies (internal data) indicates that this missense variant is not expected to disrupt HRAS function with a negative predictive value of 95%. 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. -
not provided    Uncertain:1 
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Intellectual disability    Benign:1 
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Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at