rs1267636

Variant names:

• chr7-140792239-T-C
• rs1267636
• NM_001374258.1:c.1140+2069A>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001374258.1(BRAF):​c.1140+2069A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.112 in 152,190 control chromosomes in the GnomAD database, including 1,155 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.11 (1155 hom., cov: 32)
• Consequence: BRAF NM_001374258.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.39
• Publications: 7 publications found

Genes affected

BRAF (HGNC:1097): (B-Raf proto-oncogene, serine/threonine kinase) This gene encodes a protein belonging to the RAF family of serine/threonine protein kinases. This protein plays a role in regulating the MAP kinase/ERK signaling pathway, which affects cell division, differentiation, and secretion. Mutations in this gene, most commonly the V600E mutation, are the most frequently identified cancer-causing mutations in melanoma, and have been identified in various other cancers as well, including non-Hodgkin lymphoma, colorectal cancer, thyroid carcinoma, non-small cell lung carcinoma, hairy cell leukemia and adenocarcinoma of lung. Mutations in this gene are also associated with cardiofaciocutaneous, Noonan, and Costello syndromes, which exhibit overlapping phenotypes. A pseudogene of this gene has been identified on the X chromosome. [provided by RefSeq, Aug 2017]

BRAF Gene-Disease associations (from GenCC):

• cardiofaciocutaneous syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
• cardiofaciocutaneous syndrome 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P, Genomics England PanelApp
• LEOPARD syndrome 3

  Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp
• Noonan syndrome 7

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, G2P, Ambry Genetics, Genomics England PanelApp
• Noonan syndrome

  Inheritance: AD Classification: MODERATE Submitted by: ClinGen
• Noonan syndrome with multiple lentigines

  Inheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: ClinGen, Orphanet
• anaplastic astrocytoma

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• Costello syndrome

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ENSG00000289788 (HGNC:):

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.97).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.189 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRAF	NM_001374258.1	c.1140+2069A>G		intron_variant	Intron 8 of 19	ENST00000644969.2	NP_001361187.1
BRAF	NM_004333.6	c.1140+2069A>G		intron_variant	Intron 8 of 17	ENST00000646891.2	NP_004324.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BRAF	ENST00000644969.2	c.1140+2069A>G		intron_variant	Intron 8 of 19		NM_001374258.1	ENSP00000496776.1
BRAF	ENST00000646891.2	c.1140+2069A>G		intron_variant	Intron 8 of 17		NM_004333.6	ENSP00000493543.1

Frequencies

GnomAD3 genomes AF: 0.112 AC: 16980 AN: 152072 Hom.: 1152 Cov.: 32

Gnomad AFR AF: 0.192

Gnomad AMI AF: 0.0669

Gnomad AMR AF: 0.0771

Gnomad ASJ AF: 0.0950

Gnomad EAS AF: 0.0893

Gnomad SAS AF: 0.192

Gnomad FIN AF: 0.0938

Gnomad MID AF: 0.130

Gnomad NFE AF: 0.0706

Gnomad OTH AF: 0.109

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.112 AC: 17014 AN: 152190 Hom.: 1155 Cov.: 32 AF XY: 0.114 AC XY: 8486 AN XY: 74422

African (AFR) AF: 0.193 AC: 7989 AN: 41490

American (AMR) AF: 0.0769 AC: 1176 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.0950 AC: 330 AN: 3472

East Asian (EAS) AF: 0.0899 AC: 466 AN: 5182

South Asian (SAS) AF: 0.191 AC: 921 AN: 4822

European-Finnish (FIN) AF: 0.0938 AC: 995 AN: 10606

Middle Eastern (MID) AF: 0.136 AC: 40 AN: 294

European-Non Finnish (NFE) AF: 0.0706 AC: 4803 AN: 68006

Other (OTH) AF: 0.110 AC: 233 AN: 2116

Alfa AF: 0.0953 Hom.: 146

Bravo AF: 0.110

Asia WGS AF: 0.146 AC: 506 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.97
CADD	Benign	3.7
DANN	Benign	0.66
PhyloP100		-2.4
Mutation Taster		=100/0	polymorphism (auto)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1267636; hg19: chr7-140492039;