chr7-140753332-T-A

Position:

chr7-140753332-T-A

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PM5PP2PP5

The NM_001374258.1(BRAF):c.1923A>T(p.Lys641Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,612,878 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K641R) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

BRAF
NM_001374258.1 missense

Scores

Clinical Significance

Likely pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 1.17

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]

BRAF links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1

In a hotspot region, there are 9 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_001374258.1

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr7-140753333-T-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 40390.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

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 4.9008 (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.

PP5

Variant 7-140753332-T-A is Pathogenic according to our data. Variant chr7-140753332-T-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376285.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BRAF	NM_001374258.1 linkuse as main transcript	c.1923A>T	p.Lys641Asn	missense_variant	16/20	ENST00000644969.2
BRAF	NM_004333.6 linkuse as main transcript	c.1803A>T	p.Lys601Asn	missense_variant	15/18	ENST00000646891.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BRAF	ENST00000644969.2 linkuse as main transcript	c.1923A>T	p.Lys641Asn	missense_variant	16/20		NM_001374258.1
BRAF	ENST00000646891.2 linkuse as main transcript	c.1803A>T	p.Lys601Asn	missense_variant	15/18		NM_004333.6	P4

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460690

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726696

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152188

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Melanoma

Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

Jul 14, 2015

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.080

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.84

.;.;D;.

Eigen

Benign

0.099

Eigen_PC

Benign

0.17

FATHMM_MKL

Uncertain

0.88

LIST_S2

Pathogenic

0.98

D;D;D;D

M_CAP

Benign

0.055

MetaRNN

Uncertain

0.61

D;D;D;D

MetaSVM

Benign

-0.89

MutationAssessor

Benign

1.2

.;.;L;.

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.88

REVEL

Pathogenic

0.65

Polyphen

0.92

.;.;P;.

MutPred

0.72

Loss of ubiquitination at K601 (P = 0.0183);.;Loss of ubiquitination at K601 (P = 0.0183);.;

MVP

0.86

MPC

1.2

ClinPred

0.99

GERP RS

4.5

Varity_R

0.98

gMVP

0.92

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

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over