7-140783108-T-C
Variant summary
Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP7BP5BA1BP4
This summary comes from the ClinGen Evidence Repository: The filtering allele frequency of the c.1227A>G (p.Ser409=) variant in the BRAF gene is 0.313% for European (Non-Finnish) chromosomes by the Exome Aggregation Consortium (233/66620 with 95% CI), which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert panel for autosomal dominant RASopathy variants (BA1). Additionally, this variant is a synonymous (silent) variant at a nucleotide that is not highly conserved and is not predicted to impact splicing (BP7). The p.Ser409= variant has been identified in a patient with an alternate molecular basis for disease (BP5; GeneDx, Partners LMM, EGL Genetics internal data; GTR ID's: 21766, 26957, 500060; SCV000057203.8; SCV000061570.5; SCV000112807.7). Computational prediction tools and conservation analysis suggest that the p.Ser409= variant does not impact the protein (BP4). In summary, this variant meets criteria to be classified as benign. ACMG/AMP criteria applied: BA1, BP7, BP5, BP4. LINK:https://erepo.genome.network/evrepo/ui/classification/CA135058/MONDO:0021060/004
Frequency
Consequence
NM_004333.6 synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -11 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
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BRAF | ENST00000644969.2 | c.1347A>G | p.Ser449Ser | synonymous_variant | Exon 11 of 20 | NM_001374258.1 | ENSP00000496776.1 | |||
BRAF | ENST00000646891.2 | c.1227A>G | p.Ser409Ser | synonymous_variant | Exon 10 of 18 | NM_004333.6 | ENSP00000493543.1 |
Frequencies
GnomAD3 genomes AF: 0.00269 AC: 410AN: 152174Hom.: 2 Cov.: 32
GnomAD3 exomes AF: 0.00318 AC: 799AN: 251410Hom.: 5 AF XY: 0.00308 AC XY: 418AN XY: 135872
GnomAD4 exome AF: 0.00342 AC: 5004AN: 1461794Hom.: 17 Cov.: 30 AF XY: 0.00342 AC XY: 2485AN XY: 727192
GnomAD4 genome AF: 0.00269 AC: 410AN: 152292Hom.: 2 Cov.: 32 AF XY: 0.00318 AC XY: 237AN XY: 74454
ClinVar
Submissions by phenotype
not specified Benign:4
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Ser409Ser in exon 10 of BRAF: This variant is not expected to have clinical sign ificance because it is not located within the splice consensus sequence, has bee n identified in 0.3% (20/7020) of European American chromosomes and <0.1% (2/373 8) of African American chromosomes by the NHLBI Exome sequencing project in a br oad population (http://evs.gs.washington.edu/EVS; dbSNP rs145035762) -
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not provided Benign:4
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
BRAF: BP4, BP7 -
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RASopathy Benign:2
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The filtering allele frequency of the c.1227A>G (p.Ser409=) variant in the BRAF gene is 0.313% for European (Non-Finnish) chromosomes by the Exome Aggregation Consortium (233/66620 with 95% CI), which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert panel for autosomal dominant RASopathy variants (BA1). Additionally, this variant is a synonymous (silent) variant at a nucleotide that is not highly conserved and is not predicted to impact splicing (BP7). The p.Ser409= variant has been identified in a patient with an alternate molecular basis for disease (BP5; GeneDx, Partners LMM, EGL Genetics internal data; GTR ID's: 21766, 26957, 500060; SCV000057203.8; SCV000061570.5; SCV000112807.7). Computational prediction tools and conservation analysis suggest that the p.Ser409= variant does not impact the protein (BP4). In summary, this variant meets criteria to be classified as benign. ACMG/AMP criteria applied: BA1, BP7, BP5, BP4. -
Noonan syndrome 7 Benign:1
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
LEOPARD syndrome 3 Benign:1
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Cardiovascular phenotype Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
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