3-12618603-C-T

Position:

chr3-12618603-C-T

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BS2_SupportingBP5BS4BA1BP4

This summary comes from the ClinGen Evidence Repository: The c.119G>A variant in the RAF1 gene is a missense variant predicted to cause substitution of arginine by histidine at amino acid 40 (p.Arg40His). The filtering allele frequency of this variant is 0.5265% for Admixed American chromosomes in gnomAD v4, which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert panel for autosomal dominant RASopathy variants (BA1). The computational predictor REVEL gives a score of 0.281, which is below the threshold of 0.3 and does not predict a damaging effect on RAF1 function (BP4). This variant has been identified in a patient with an alternate molecular basis for disease and did not segregate with disease in affected family members (BP5, BS4; GeneDx internal data; GTR ID: 26957; SCV000171283.11). Additionally this variant was identified in multiple healthy individuals (BS2_P, Eurofins, SCV000227278.5; Illumina, SCV000440638.3; Ambry Genetics, SCV000736788.4). In summary, this variant meets criteria to be classified as benign for autosomal dominant RASopathies based on the ACMG/AMP criteria applied, as specified by the ClinGen RASopathy Variant Curation Expert Panel: BA1, BS4, BS2_supporting, BP4, BP5 (Specification Version 2.1, 9/17/2024) LINK:https://erepo.genome.network/evrepo/ui/classification/CA201617/MONDO:0021060/040

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00023 ( 2 hom. )

Consequence

RAF1
NM_002880.4 missense

Scores

2

6

11

Clinical Significance

Benign reviewed by expert panel U:1B:8

Conservation

PhyloP100: 5.77

Variant links:

Genes affected

RAF1 (HGNC:9829): (Raf-1 proto-oncogene, serine/threonine kinase) This gene is the cellular homolog of viral raf gene (v-raf). The encoded protein is a MAP kinase kinase kinase (MAP3K), which functions downstream of the Ras family of membrane associated GTPases to which it binds directly. Once activated, the cellular RAF1 protein can phosphorylate to activate the dual specificity protein kinases MEK1 and MEK2, which in turn phosphorylate to activate the serine/threonine specific protein kinases, ERK1 and ERK2. Activated ERKs are pleiotropic effectors of cell physiology and play an important role in the control of gene expression involved in the cell division cycle, apoptosis, cell differentiation and cell migration. Mutations in this gene are associated with Noonan syndrome 5 and LEOPARD syndrome 2. [provided by RefSeq, Jul 2008]

RAF1 links:

RAF1 (HGNC:):

RAF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4

For more information check the summary or visit ClinGen Evidence Repository.

BP5

For more information check the summary or visit ClinGen Evidence Repository.

BS2

For more information check the summary or visit ClinGen Evidence Repository.

BS4

For more information check the summary or visit ClinGen Evidence Repository.

BA1

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RAF1	NM_002880.4 linkuse as main transcript	c.119G>A	p.Arg40His	missense_variant	2/17	ENST00000251849.9	NP_002871.1	P04049-1L7RRS6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RAF1	ENST00000251849.9 linkuse as main transcript	c.119G>A	p.Arg40His	missense_variant	2/17	1	NM_002880.4	ENSP00000251849.4		P04049-1

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

25

AN:

152148

Hom.:

0

Cov.:

32

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00151

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000958

GnomAD3 exomes

AF:

0.00118

AC:

298

AN:

251486

Hom.:

2

AF XY:

0.000765

AC XY:

104

AN XY:

135914

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00850

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000228

AC:

334

AN:

1461894

Hom.:

2

Cov.:

32

AF XY:

0.000157

AC XY:

114

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00722

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:

0.00000360

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.000164

AC:

25

AN:

152266

Hom.:

0

Cov.:

32

AF XY:

0.000161

AC XY:

12

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00150

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000948

Alfa

AF:

0.0000347

Hom.:

0

Bravo

AF:

0.000620

ExAC

AF:

0.000931

AC:

113

Asia WGS

AF:

0.000289

AC:

1

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Uncertain:1Benign:8

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Aug 28, 2018	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Mar 30, 2022	- -

RASopathy

Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 25, 2024	- -
Benign, reviewed by expert panel	curation	ClinGen RASopathy Variant Curation Expert Panel	Sep 17, 2024	The c.119G>A variant in the RAF1 gene is a missense variant predicted to cause substitution of arginine by histidine at amino acid 40 (p.Arg40His). The filtering allele frequency of this variant is 0.5265% for Admixed American chromosomes in gnomAD v4, which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert panel for autosomal dominant RASopathy variants (BA1). The computational predictor REVEL gives a score of 0.281, which is below the threshold of 0.3 and does not predict a damaging effect on RAF1 function (BP4). This variant has been identified in a patient with an alternate molecular basis for disease and did not segregate with disease in affected family members (BP5, BS4; GeneDx internal data; GTR ID: 26957; SCV000171283.11). Additionally this variant was identified in multiple healthy individuals (BS2_P, Eurofins, SCV000227278.5; Illumina, SCV000440638.3; Ambry Genetics, SCV000736788.4). In summary, this variant meets criteria to be classified as benign for autosomal dominant RASopathies based on the ACMG/AMP criteria applied, as specified by the ClinGen RASopathy Variant Curation Expert Panel: BA1, BS4, BS2_supporting, BP4, BP5 (Specification Version 2.1, 9/17/2024) -

Noonan 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

- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Jun 09, 2015

- -

LEOPARD syndrome 2

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Cardiovascular phenotype

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 23, 2018

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Noonan syndrome 5

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Benign

-0.13

T

BayesDel_noAF

Uncertain

0.040

CADD

Pathogenic

26

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.48

T;.

Eigen

Benign

0.18

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Pathogenic

0.98

D

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Benign

0.017

T

MetaRNN

Benign

0.011

T;T

MetaSVM

Benign

-0.67

T

MutationAssessor

Benign

1.4

L;L

PrimateAI

Uncertain

0.72

T

PROVEAN

Benign

-0.86

N;N

REVEL

Benign

0.28

Sift

Uncertain

0.0070

D;D

Sift4G

Benign

0.33

T;T

Polyphen

0.33

B;.

Vest4

0.66

MVP

0.95

MPC

0.58

ClinPred

0.046

T

GERP RS

6.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.15

gMVP

0.61

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.

Other links and lift over

dbSNP: rs192632236; hg19: chr3-12660102;