1-114713986-T-C

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4BP7BS1

This summary comes from the ClinGen Evidence Repository: The NM_002524.5:c.112-8A>G variant is an intronic variant that is not predicted by SpliceAI to impact splicing. In addition, it occurs at a nucleotide that is not conserved as shown by UCSC Genome Browser (BP4, BP7). The filtering allele frequency (the lower threshold of the 95% CI of 62/127294) of the c.112-8A>G variant in NRAS is 0.0003711 for European (non-Finnish) chromosomes by gnomAD v2.1.1, which is higher than the ClinGen RASopathy VCEP threshold (≥0.00025) for BS1, and therefore meets this criterion (BS1). In summary, this variant meets the criteria to be classified as likely benign for autosomal dominant RASopathy based on the ACMG/AMP criteria applied, as specified by the ClinGen RASopathy VCEP: BS1, BP4, BP7. (ClinGen RASopathy VCEP specifications version 2.3; 12/3/2024) LINK:https://erepo.genome.network/evrepo/ui/classification/CA292582/MONDO:0021060/039

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00041 ( 0 hom. )

Consequence

NRAS
NM_002524.5 splice_region, intron

Scores

Splicing: ADA: 0.00006452

Clinical Significance

Likely benign reviewed by expert panel U:1B:8

Conservation

PhyloP100: 1.46

Variant links:

Genes affected

NRAS (HGNC:7989): (NRAS proto-oncogene, GTPase) This is an N-ras oncogene encoding a membrane protein that shuttles between the Golgi apparatus and the plasma membrane. This shuttling is regulated through palmitoylation and depalmitoylation by the ZDHHC9-GOLGA7 complex. The encoded protein, which has intrinsic GTPase activity, is activated by a guanine nucleotide-exchange factor and inactivated by a GTPase activating protein. Mutations in this gene have been associated with somatic rectal cancer, follicular thyroid cancer, autoimmune lymphoproliferative syndrome, Noonan syndrome, and juvenile myelomonocytic leukemia. [provided by RefSeq, Jun 2011]

NRAS links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

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

BP7

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

BS1

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NRAS	NM_002524.5 link	c.112-8A>G		splice_region_variant, intron_variant	Intron 2 of 6	ENST00000369535.5	NP_002515.1	P01111Q5U091

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NRAS	ENST00000369535.5 link	c.112-8A>G		splice_region_variant, intron_variant	Intron 2 of 6	1	NM_002524.5	ENSP00000358548.4		P01111

Frequencies

GnomAD3 genomes

AF:

0.000233

AC:

AN:

145724

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000755

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:

0.000106

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000451

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000247

AC:

AN:

246546

Hom.:

AF XY:

0.000217

AC XY:

AN XY:

133352

show subpopulations

Gnomad AFR exome

AF:

0.000187

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000187

Gnomad NFE exome

AF:

0.000473

Gnomad OTH exome

AF:

0.000168

GnomAD4 exome

AF:

0.000414

AC:

495

AN:

1194766

Hom.:

Cov.:

AF XY:

0.000419

AC XY:

250

AN XY:

596354

show subpopulations

Gnomad4 AFR exome

AF:

0.000110

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:

0.000284

Gnomad4 NFE exome

AF:

0.000515

Gnomad4 OTH exome

AF:

0.000258

GnomAD4 genome

AF:

0.000233

AC:

AN:

145724

Hom.:

Cov.:

AF XY:

0.000198

AC XY:

AN XY:

70834

show subpopulations

Gnomad4 AFR

AF:

0.0000755

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000106

Gnomad4 NFE

AF:

0.000451

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000395

Hom.:

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:1Benign:8

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not provided

Benign:3

Apr 10, 2017

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: c.112-8A>G in NRAS gene is an intronic change that involves a non-conserved nucleotide. 5/5 programs in Alamut predict that this variant does not affect a normal splicing pattern, however no functional studies supporting this notion were published at the time of evaluation. The variant is present in the control population dataset of ExAC at frequency of 0.0003356 (140/119188 chrs tested), predominantly in individuals of European descent (0.0005757; 38/66004 chrs tested). The observed frequencies exceed the maximum expected allele frequency for a pathogenic variant of 0.0000025 suggesting that it is a benign polymorphism. The variant of interest has not, to our knowledge, been reported in affected individuals in published reports but cited as Benign by a reputable database/clinical laboratory. Taking together, based on the prevalence of this variant in general population the variant was classified as Benign. -

Sep 05, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

NRAS: BP4 -

RASopathy

Benign:2

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Dec 03, 2024

ClinGen RASopathy Variant Curation Expert Panel

Significance: Likely benign

Review Status: reviewed by expert panel

Collection Method: curation

The NM_002524.5:c.112-8A>G variant is an intronic variant that is not predicted by SpliceAI to impact splicing. In addition, it occurs at a nucleotide that is not conserved as shown by UCSC Genome Browser (BP4, BP7). The filtering allele frequency (the lower threshold of the 95% CI of 62/127294) of the c.112-8A>G variant in NRAS is 0.0003711 for European (non-Finnish) chromosomes by gnomAD v2.1.1, which is higher than the ClinGen RASopathy VCEP threshold (≥0.00025) for BS1, and therefore meets this criterion (BS1). In summary, this variant meets the criteria to be classified as likely benign for autosomal dominant RASopathy based on the ACMG/AMP criteria applied, as specified by the ClinGen RASopathy VCEP: BS1, BP4, BP7. (ClinGen RASopathy VCEP specifications version 2.3; 12/3/2024) -

Noonan syndrome 6

Uncertain:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

NRAS-related disorder

Benign:1

Aug 05, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not specified

Benign:1

Mar 18, 2012

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Noonan syndrome and Noonan-related syndrome

Benign:1

May 01, 2020

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

6.7

DANN

Benign

0.73

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000065

dbscSNV1_RF

Benign

0.0

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