rs114668710

Variant names:

• chr1-114713931-C-A
• rs114668710
• NM_002524.5:c.159G>T

Your query was ambiguous. Multiple possible variants found:

• chr1-114713931-C-A
• chr1-114713931-C-G
• chr1-114713931-C-T

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1 PM2 PP2 PP3_Moderate

The NM_002524.5(NRAS):​c.159G>T​(p.Leu53Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L53L) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: NRAS NM_002524.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.16
• Publications: 1 publications found

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 Gene-Disease associations (from GenCC):

• Noonan syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• Noonan syndrome 6

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, PanelApp Australia
• cardiofaciocutaneous syndrome

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Genomics England PanelApp, ClinGen
• Costello syndrome

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• Noonan syndrome with multiple lentigines

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

• PM1: In a hotspot region, there are 12 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 8 uncertain in NM_002524.5
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 30 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 1.7139 (below the threshold of 3.09). Trascript score misZ: 2.2391 (below the threshold of 3.09). GenCC associations: The gene is linked to cardiofaciocutaneous syndrome, Noonan syndrome, Noonan syndrome 6, Costello syndrome, Noonan syndrome with multiple lentigines.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.868

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NRAS	NM_002524.5	c.159G>T	p.Leu53Phe	missense_variant	Exon 3 of 7	ENST00000369535.5	NP_002515.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NRAS	ENST00000369535.5	c.159G>T	p.Leu53Phe	missense_variant	Exon 3 of 7	1	NM_002524.5	ENSP00000358548.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1375684 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 682486

African (AFR) AF: 0.00 AC: 0 AN: 31006

American (AMR) AF: 0.00 AC: 0 AN: 42056

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23354

East Asian (EAS) AF: 0.00 AC: 0 AN: 34076

South Asian (SAS) AF: 0.00 AC: 0 AN: 85072

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 44442

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5342

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1055644

Other (OTH) AF: 0.00 AC: 0 AN: 54692

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.16
CADD	Uncertain	25
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.68	D
Eigen	Pathogenic	0.74
Eigen_PC	Pathogenic	0.67
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.94	D
M_CAP	Uncertain	0.16	D
MetaRNN	Pathogenic	0.87	D
MetaSVM	Uncertain	0.61	D
MutationAssessor	Uncertain	2.9	M
PhyloP100		2.2
PrimateAI	Pathogenic	0.90	D
PROVEAN	Uncertain	-3.5	D
REVEL	Pathogenic	0.67
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.81
MutPred		0.61		Gain of catalytic residue at L53 (P = 0.1025);
MVP		0.85
MPC		1.8
ClinPred		0.99	D
GERP RS		5.1
Varity_R		0.95
gMVP		0.92
Mutation Taster		=19/81	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.10		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs114668710; hg19: chr1-115256552; COSMIC: COSV105049066; COSMIC: COSV105049066;