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rs988964363

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006270.5(RRAS):c.649C>G(p.Leu217Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000485 in 1,443,008 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000023 ( 0 hom. )

Consequence

RRAS
NM_006270.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.55
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12321359).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RRASNM_006270.5 linkuse as main transcriptc.649C>G p.Leu217Val missense_variant 6/6 ENST00000246792.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RRASENST00000246792.4 linkuse as main transcriptc.649C>G p.Leu217Val missense_variant 6/61 NM_006270.5 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152082
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000966
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000232
AC:
3
AN:
1290926
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
629250
show subpopulations
Gnomad4 AFR exome
AF:
0.0000356
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:
9.79e-7
Gnomad4 OTH exome
AF:
0.0000191
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152082
Hom.:
0
Cov.:
31
AF XY:
0.0000269
AC XY:
2
AN XY:
74276
show subpopulations
Gnomad4 AFR
AF:
0.0000966
Gnomad4 AMR
AF:
0.00
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
Bravo
AF:
0.0000151

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Noonan syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJun 26, 2018Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The valine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This sequence change replaces leucine with valine at codon 217 of the RRAS protein (p.Leu217Val). The leucine residue is moderately conserved and there is a small physicochemical difference between leucine and valine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with RRAS-related disease. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.097
T
BayesDel_noAF
Benign
-0.38
Cadd
Benign
18
Dann
Benign
0.96
DEOGEN2
Benign
0.25
T
Eigen
Benign
-0.30
Eigen_PC
Benign
-0.12
FATHMM_MKL
Benign
0.74
D
LIST_S2
Benign
0.66
T
M_CAP
Benign
0.034
D
MetaRNN
Benign
0.12
T
MetaSVM
Benign
-0.86
T
MutationAssessor
Benign
0.18
N
MutationTaster
Benign
0.61
D
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
0.060
N
REVEL
Benign
0.044
Sift
Benign
0.13
T
Sift4G
Benign
0.25
T
Polyphen
0.096
B
Vest4
0.12
MutPred
0.42
Gain of sheet (P = 0.0477);
MVP
0.61
MPC
0.45
ClinPred
0.28
T
GERP RS
4.0
Varity_R
0.096
gMVP
0.57

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: rs988964363; hg19: chr19-50138841; API