7-140753354-T-C

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PM1PM2PM5PP2PP3_StrongPP5

The NM_004333.6(BRAF):​c.1781A>G​(p.Asp594Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D594V) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)

Consequence

BRAF
NM_004333.6 missense

Scores

11
4
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:3U:1O:1

Conservation

PhyloP100: 7.94
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 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;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr7-140753354-T-A is described in Lovd as [Pathogenic].
PP2
Missense variant in the BRAF gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 139 curated pathogenic missense variants (we use a threshold of 10). The gene has 21 curated benign missense variants. Gene score misZ: 3.7208 (above the threshold of 3.09). Trascript score misZ: 4.9447 (above the threshold of 3.09). GenCC associations: The gene is linked to LEOPARD syndrome 3, anaplastic astrocytoma, Noonan syndrome with multiple lentigines, cardiofaciocutaneous syndrome 1, Noonan syndrome, cardiofaciocutaneous syndrome, Costello syndrome, Noonan syndrome 7.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.986
PP5
Variant 7-140753354-T-C is Pathogenic according to our data. Variant chr7-140753354-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 13972.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Pathogenic=1, other=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRAFNM_001374258.1 linkc.1901A>G p.Asp634Gly missense_variant Exon 16 of 20 ENST00000644969.2 NP_001361187.1
BRAFNM_004333.6 linkc.1781A>G p.Asp594Gly missense_variant Exon 15 of 18 ENST00000646891.2 NP_004324.2 P15056

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRAFENST00000644969.2 linkc.1901A>G p.Asp634Gly missense_variant Exon 16 of 20 NM_001374258.1 ENSP00000496776.1 A0A2R8Y8E0
BRAFENST00000646891.2 linkc.1781A>G p.Asp594Gly missense_variant Exon 15 of 18 NM_004333.6 ENSP00000493543.1 P15056

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
30
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00209
Hom.:
0

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:3Uncertain:1Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Lung adenocarcinoma Pathogenic:1
-
Key Laboratory of Carcinogenesis and Cancer Invasion, Central South University
Significance: Likely pathogenic
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Non-small cell lung carcinoma Pathogenic:1
Jun 11, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant has been reported as a somatic change in large intestine, skin, end ometrium, stomach, and ovary (COSMIC, Fransen 2004) and has been observed in up to 11% of BRAF mutant positive lung adenocarcinoma (Paik 2011). -

Non-Hodgkin lymphoma Pathogenic:1
Nov 17, 2003
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only

- -

RASopathy Uncertain:1
Aug 03, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces aspartic acid with glycine at codon 594 of the BRAF protein (p.Asp594Gly). The aspartic acid residue is highly conserved and there is a moderate physicochemical difference between aspartic acid and glycine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with BRAF-related conditions. ClinVar contains an entry for this variant (Variation ID: 13972). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt BRAF protein function. Experimental studies have shown that this variant affects BRAF function (PMID: 23352452, 29595366). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Neoplasm Other:1
Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: -
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.54
D
BayesDel_noAF
Pathogenic
0.54
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.91
.;.;D;.
Eigen
Uncertain
0.65
Eigen_PC
Pathogenic
0.66
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D;D;D;D
M_CAP
Pathogenic
0.38
D
MetaRNN
Pathogenic
0.99
D;D;D;D
MetaSVM
Uncertain
0.45
D
MutationAssessor
Uncertain
2.5
.;.;M;.
PrimateAI
Pathogenic
0.87
D
REVEL
Pathogenic
0.99
Polyphen
0.99
.;.;D;.
MutPred
0.97
Gain of methylation at K591 (P = 0.0513);.;Gain of methylation at K591 (P = 0.0513);.;
MVP
0.99
MPC
2.2
ClinPred
1.0
D
GERP RS
5.7
Varity_R
0.98
gMVP
0.99

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs121913338; hg19: chr7-140453154; COSMIC: COSV56065695; API