rs138124318

Positions:

chr19-49636710-T-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The ENST00000246792.4(RRAS):c.362A>G(p.Lys121Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000224 in 1,614,084 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. K121K) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00013 ( 1 hom. )

Consequence

RRAS
ENST00000246792.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 7.26

Variant links:

Genes affected

RRAS (HGNC:10447): (RAS related) The protein encoded by this gene is a small GTPase involved in diverse processes including angiogenesis, vascular homeostasis and regeneration, cell adhesion, and neuronal axon guidance. Mutations in this gene are found in many invasive cancers. [provided by RefSeq, Jul 2015]

RRAS links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.011236966).

BP6

Variant 19-49636710-T-C is Benign according to our data. Variant chr19-49636710-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 527795.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RRAS	NM_006270.5 linkuse as main transcript	c.362A>G	p.Lys121Arg	missense_variant	4/6	ENST00000246792.4	NP_006261.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RRAS	ENST00000246792.4 linkuse as main transcript	c.362A>G	p.Lys121Arg	missense_variant	4/6	1	NM_006270.5	ENSP00000246792	P1
RRAS	ENST00000601532.1 linkuse as main transcript	n.502A>G		non_coding_transcript_exon_variant	3/4	5

Frequencies

GnomAD3 genomes

AF:

0.00109

AC:

166

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00398

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

GnomAD3 exomes

AF:

0.000370

AC:

AN:

251108

Hom.:

AF XY:

0.000287

AC XY:

AN XY:

135766

show subpopulations

Gnomad AFR exome

AF:

0.00561

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000133

AC:

195

AN:

1461804

Hom.:

Cov.:

AF XY:

0.000117

AC XY:

AN XY:

727218

show subpopulations

Gnomad4 AFR exome

AF:

0.00541

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000994

GnomAD4 genome

AF:

0.00109

AC:

166

AN:

152280

Hom.:

Cov.:

AF XY:

0.000927

AC XY:

AN XY:

74466

show subpopulations

Gnomad4 AFR

AF:

0.00397

Gnomad4 AMR

AF:

0.0000654

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:

0.00

Alfa

AF:

0.000209

Hom.:

Bravo

AF:

0.00127

ESP6500AA

AF:

0.00522

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000436

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Apr 26, 2021	Variant summary: RRAS c.362A>G (p.Lys121Arg) results in a conservative amino acid change located in the Small GTP-binding protein domain (IPR005225) of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00037 in 251108 control chromosomes, predominantly at a frequency of 0.0056 within the African or African-American subpopulation in the gnomAD database, including 1 homozygote. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 2240- fold the estimated maximal expected allele frequency for a pathogenic variant in RRAS causing Noonan Syndrome And Related Conditions phenotype (2.5e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. To our knowledge, no occurrence of c.362A>G in individuals affected with Noonan Syndrome And Related Conditions and no experimental evidence demonstrating its impact on protein function have been reported. One other clinical diagnostic laboratory has submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation and cited the variant as likely benign. Based on the evidence outlined above, the variant was classified as benign. -
Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Feb 04, 2023	This alteration is classified as likely 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

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 03, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.17

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.55

Eigen

Uncertain

0.38

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.74

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.011

MetaSVM

Benign

-0.39

MutationAssessor

Benign

0.0050

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-1.2

REVEL

Uncertain

0.38

Sift

Benign

0.37

Sift4G

Benign

0.40

Polyphen

1.0

Vest4

0.55

MVP

0.96

MPC

1.2

ClinPred

0.11

GERP RS

4.1

Varity_R

0.20

gMVP

0.51

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.15

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