7-140781626-T-C

Position:

• chr7-140781626-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1 PM2 PP2

The NM_004333.6(BRAF):​c.1382A>G​(p.Gln461Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. Q461Q) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BRAF NM_004333.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.20

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]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM1: In a domain Protein kinase (size 260) in uniprot entity BRAF_HUMAN there are 21 pathogenic changes around while only 1 benign (95%) in NM_004333.6
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), BRAF. . Gene score misZ 3.7208 (greater than the threshold 3.09). Trascript score misZ 4.9447 (greater than threshold 3.09). GenCC has associacion of gene with LEOPARD syndrome 3, anaplastic astrocytoma, Noonan syndrome with multiple lentigines, cardiofaciocutaneous syndrome 1, Noonan syndrome, cardiofaciocutaneous syndrome, Costello syndrome, Noonan syndrome 7.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BRAF	NM_001374258.1	c.1502A>G	p.Gln501Arg	missense_variant	12/20	ENST00000644969.2	NP_001361187.1
BRAF	NM_004333.6	c.1382A>G	p.Gln461Arg	missense_variant	11/18	ENST00000646891.2	NP_004324.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BRAF	ENST00000644969.2	c.1502A>G	p.Gln501Arg	missense_variant	12/20		NM_001374258.1	ENSP00000496776
BRAF	ENST00000646891.2	c.1382A>G	p.Gln461Arg	missense_variant	11/18		NM_004333.6	ENSP00000493543	P4
	ENST00000700122.1	n.502+6758T>C		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Cardiofaciocutaneous syndrome 1 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Center for Human Genetics, Inc, Center for Human Genetics, Inc

Nov 01, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.48
BayesDel_addAF	Pathogenic	0.21	D
BayesDel_noAF	Uncertain	0.060
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.61	.;.;D;.
Eigen	Benign	-0.18
Eigen_PC	Benign	0.067
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Benign	0.82	T;T;T;T
M_CAP	Uncertain	0.10	D
MetaRNN	Uncertain	0.46	T;T;T;T
MetaSVM	Uncertain	0.61	D
MutationAssessor	Benign	0.38	.;.;N;.
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.86	D
REVEL	Uncertain	0.47
Polyphen		0.0	.;.;B;.
MutPred		0.39		Gain of MoRF binding (P = 0.0286);.;Gain of MoRF binding (P = 0.0286);.;
MVP		0.94
MPC		1.2
ClinPred		0.86	D
GERP RS		5.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.55
gMVP		0.48

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

LitVar

Other links and lift over

dbSNP: rs1554399925; hg19: chr7-140481426;