7-140787575-T-C
Variant summary
Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BA1
This summary comes from the ClinGen Evidence Repository: The filtering allele frequency of the c.1150A>G (p.Arg384Gly) variant in the BRAF gene is 0.116% (16/8646) of East Asian chromosomes by the Exome Aggregation Consortium, which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert Panel (BA1; PMID:29493581) LINK:https://erepo.genome.network/evrepo/ui/classification/CA4516796/MONDO:0021060/004
Frequency
Consequence
NM_004333.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -8 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
BRAF | ENST00000644969.2 | c.1150A>G | p.Arg384Gly | missense_variant | Exon 9 of 20 | NM_001374258.1 | ENSP00000496776.1 | |||
BRAF | ENST00000646891.2 | c.1150A>G | p.Arg384Gly | missense_variant | Exon 9 of 18 | NM_004333.6 | ENSP00000493543.1 |
Frequencies
GnomAD3 genomes AF: 0.0000591 AC: 9AN: 152210Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000183 AC: 46AN: 251312Hom.: 0 AF XY: 0.000169 AC XY: 23AN XY: 135832
GnomAD4 exome AF: 0.0000267 AC: 39AN: 1460142Hom.: 0 Cov.: 30 AF XY: 0.0000220 AC XY: 16AN XY: 726478
GnomAD4 genome AF: 0.0000591 AC: 9AN: 152328Hom.: 0 Cov.: 32 AF XY: 0.0000805 AC XY: 6AN XY: 74492
ClinVar
Submissions by phenotype
RASopathy Benign:2
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The filtering allele frequency of the c.1150A>G (p.Arg384Gly) variant in the BRAF gene is 0.116% (16/8646) of East Asian chromosomes by the Exome Aggregation Consortium, which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert Panel (BA1; PMID:29493581) -
not specified Benign:1
Variant summary: BRAF c.1150A>G (p.Arg384Gly) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00018 in 251312 control chromosomes, exclusively reported within the East Asian subpopulation at a frequency of 0.0025, in the gnomAD database. The observed variant frequency within East Asian control individuals is approximately 1000-fold of the estimated maximal allele frequency expected for a pathogenic variant in BRAF causing Noonan Syndrome and Related Conditions phenotype (2.5e-06), strongly suggesting that the variant is a benign polymorphism. c.1150A>G has been reported in the literature in a fetus with abnormal ultrasound findings (suspected of Noonan Syndrome) and in individuals with various cancer phenotypes (Croonen_2013, Zhang_2015, Griffith_2018), however, without strong evidence for causality. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Two submitters, including an expert panel (ClinGen RASopathy Variant Curation Expert Panel), have provided clinical-significance assessments for this variant in ClinVar after 2014, and classified the variant as likely benign / benign (expert panel). Based on the evidence outlined above, the variant was classified as benign. -
Noonan syndrome and Noonan-related syndrome Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at