chr11-533369-G-T
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Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The ENST00000311189.8(HRAS):c.450+84C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,607,860 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 Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )
Consequence
HRAS
ENST00000311189.8 intron
ENST00000311189.8 intron
Scores
2
Splicing: ADA: 0.005756
2
Clinical Significance
Conservation
PhyloP100: 2.13
Genes affected
HRAS (HGNC:5173): (HRas proto-oncogene, GTPase) This gene belongs to the Ras oncogene family, whose members are related to the transforming genes of mammalian sarcoma retroviruses. The products encoded by these genes function in signal transduction pathways. These proteins can bind GTP and GDP, and they have intrinsic GTPase activity. This protein undergoes a continuous cycle of de- and re-palmitoylation, which regulates its rapid exchange between the plasma membrane and the Golgi apparatus. Mutations in this gene cause Costello syndrome, a disease characterized by increased growth at the prenatal stage, growth deficiency at the postnatal stage, predisposition to tumor formation, cognitive disability, skin and musculoskeletal abnormalities, distinctive facial appearance and cardiovascular abnormalities. Defects in this gene are implicated in a variety of cancers, including bladder cancer, follicular thyroid cancer, and oral squamous cell carcinoma. Multiple transcript variants, which encode different isoforms, have been identified for this gene. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -6 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.32).
BS2
High AC in GnomAdExome4 at 18 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
HRAS | NM_005343.4 | c.450+84C>A | intron_variant | ENST00000311189.8 | NP_005334.1 | |||
HRAS | NM_176795.5 | c.451-11C>A | splice_polypyrimidine_tract_variant, intron_variant | ENST00000417302.7 | NP_789765.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
HRAS | ENST00000311189.8 | c.450+84C>A | intron_variant | 1 | NM_005343.4 | ENSP00000309845 | P1 | |||
HRAS | ENST00000417302.7 | c.451-11C>A | splice_polypyrimidine_tract_variant, intron_variant | 5 | NM_176795.5 | ENSP00000388246 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152252Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000411 AC: 10AN: 243056Hom.: 0 AF XY: 0.0000376 AC XY: 5AN XY: 132912
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GnomAD4 exome AF: 0.0000124 AC: 18AN: 1455608Hom.: 0 Cov.: 34 AF XY: 0.00000828 AC XY: 6AN XY: 724468
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152252Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74388
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Feb 04, 2014 | Variant classified as Uncertain Significance - Favor Benign. The 451-11C>A varia nt in HRAS has not been reported in individuals with clinical features of Costel lo syndrome or in large population studies. However, this variant has been ident ified in a reportedly unaffected parent of a proband by our laboratory (LMM unpu blished data). This variant is located in the 3' splice region. Computational to ols do not suggest an impact to splicing, however this information is not predic tive enough to rule out pathogenicity. Although this data and the fact that spli ce variants in HRAS have not been reported in individuals with disease support t hat the 451-11C>A variant may be benign, additional studies are needed to fully assess its clinical significance. - |
Computational scores
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Name
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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dbscSNV1_ADA
Benign
dbscSNV1_RF
Benign
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at