rs377165711
Variant summary
Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_ModerateBP6_Very_StrongBP7BS2
The NM_001374258.1(BRAF):c.2256C>T(p.Ala752Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000777 in 1,429,086 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 Likely benign (★★).
Frequency
Consequence
NM_001374258.1 synonymous
Scores
Clinical Significance
Conservation
Publications
- cardiofaciocutaneous syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- cardiofaciocutaneous syndrome 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P, Genomics England PanelApp
- LEOPARD syndrome 3Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp
- Noonan syndrome 7Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, G2P, Ambry Genetics, Genomics England PanelApp
- Noonan syndromeInheritance: AD Classification: MODERATE Submitted by: ClinGen
- Noonan syndrome with multiple lentiginesInheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: ClinGen, Orphanet
- anaplastic astrocytomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
- Costello syndromeInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -15 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt | 
|---|---|---|---|---|---|---|---|---|---|---|
| BRAF | ENST00000644969.2 | c.2256C>T | p.Ala752Ala | synonymous_variant | Exon 19 of 20 | NM_001374258.1 | ENSP00000496776.1 | |||
| BRAF | ENST00000646891.2 | c.2136C>T | p.Ala712Ala | synonymous_variant | Exon 18 of 18 | NM_004333.6 | ENSP00000493543.1 | 
Frequencies
GnomAD3 genomes  0.0000243  AC: 3AN: 123250Hom.:  0  Cov.: 24 show subpopulations 
GnomAD2 exomes  AF:  0.0000624  AC: 11AN: 176228 AF XY:  0.0000308   show subpopulations 
GnomAD4 exome  AF:  0.0000827  AC: 108AN: 1305836Hom.:  0  Cov.: 35 AF XY:  0.0000714  AC XY: 46AN XY: 644240 show subpopulations 
Age Distribution
GnomAD4 genome  0.0000243  AC: 3AN: 123250Hom.:  0  Cov.: 24 AF XY:  0.0000172  AC XY: 1AN XY: 58198 show subpopulations 
ClinVar
Submissions by phenotype
Lung cancer;C0346629:Colorectal cancer;C1835047:Melanoma, cutaneous malignant, susceptibility to, 1;C3150970:Noonan syndrome 7;C3150971:LEOPARD syndrome 3;C4551602:Noonan syndrome 1;CN029449:Cardiofaciocutaneous syndrome 1    Benign:1 
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not specified    Benign:1 
p.Ala712Ala in Exon 18 of BRAF: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue, is not located withi n the splice consensus sequence. It has been identified in 1/7020 European Ameri can chromosomes from a broad population by the NHLBI Exome Sequencing Project (h ttp://evs.gs.washington.edu/EVS;). -
not provided    Benign:1 
Variant summary: The BRAF c.2136C>T (p.Ala712Ala) variant involves the alteration of a conserved nucleotide, resulting in a synonymous change. One in silico tool predicts a damaging outcome for this variant. 5/5 splice prediction tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. This variant was found in 7/120766 control chromosomes, predominantly observed in the European (Non-Finnish) subpopulation at a frequency of 0.0001054 (7/66430). This frequency is about 42 times the estimated maximal expected allele frequency of a pathogenic BRAF variant (0.0000025), suggesting this is likely a benign polymorphism found primarily in the populations of European (Non-Finnish) origin. In addition, one clinical diagnostic laboratory/reputable database classified this variant as likely benign. The variant of interest has not, to our knowledge, been reported in affected individuals via publications nor evaluated for functional impact by in vivo/vitro studies. Taken together, this variant is classified as benign. -
Cardiovascular phenotype    Benign:1 
This alteration is classified as likely 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. -
RASopathy    Benign:1 
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Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at