rs557241012

chr7-140834676-C-Achr7-140834676-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_001374258.1(BRAF):c.437G>T(p.Arg146Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R146Q) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BRAF NM_001374258.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.62

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, BRAF

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BRAF	NM_001374258.1	c.437G>T	p.Arg146Leu	missense_variant	3/20	ENST00000644969.2
BRAF	NM_004333.6	c.437G>T	p.Arg146Leu	missense_variant	3/18	ENST00000646891.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BRAF	ENST00000644969.2	c.437G>T	p.Arg146Leu	missense_variant	3/20		NM_001374258.1
BRAF	ENST00000646891.2	c.437G>T	p.Arg146Leu	missense_variant	3/18		NM_004333.6	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.38
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.030
Cadd	Pathogenic	29
Dann	Uncertain	1.0
Eigen	Uncertain	0.53
Eigen_PC	Uncertain	0.60
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D;D;D;D;D
M_CAP	Benign	0.020	T
MetaRNN	Uncertain	0.45	T;T;T;T;T
MetaSVM	Benign	-0.55	T
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.65	T
Polyphen		0.98	.;.;D;.;.
Vest4		0.85
MutPred		0.28		Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);
MVP		0.74
MPC		1.4
ClinPred		0.75	D
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.36
gMVP		0.74

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-140534476;