Genetic Variant RASGRF2:p.Ser1116Pro (chr5-81212555-T-C) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4BS2

The NM_006909.3(RASGRF2):c.3346T>C(p.Ser1116Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,457,714 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

RASGRF2
NM_006909.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.66

Variant links:

Genes affected

RASGRF2 (HGNC:9876): (Ras protein specific guanine nucleotide releasing factor 2) RAS GTPases cycle between an inactive GDP-bound state and an active GTP-bound state. This gene encodes a calcium-regulated nucleotide exchange factor activating both RAS and RAS-related protein, RAC1, through the exchange of bound GDP for GTP, thereby, coordinating the signaling of distinct mitogen-activated protein kinase pathways. [provided by RefSeq, Oct 2011]

RASGRF2 links:

CKMT2-AS1 (HGNC:48997): (CKMT2 antisense RNA 1)

CKMT2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.34382913).

BS2

High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RASGRF2	NM_006909.3 link	c.3346T>C	p.Ser1116Pro	missense_variant	Exon 23 of 27	ENST00000265080.9	NP_008840.1	O14827Q68DX5A0A2X0SFL3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RASGRF2	ENST00000265080.9 link	c.3346T>C	p.Ser1116Pro	missense_variant	Exon 23 of 27	1	NM_006909.3	ENSP00000265080.4		O14827

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000818

AC:

AN:

244388

Hom.:

AF XY:

0.00000758

AC XY:

AN XY:

131946

show subpopulations

Gnomad AFR exome

AF:

0.0000641

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:

0.00

Gnomad NFE exome

AF:

0.00000907

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000343

AC:

AN:

1457714

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724742

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000225

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 06, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3346T>C (p.S1116P) alteration is located in exon 1 (coding exon 1) of the RASGRF2 gene. This alteration results from a T to C substitution at nucleotide position 3346, causing the serine (S) at amino acid position 1116 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.052

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

Eigen

Uncertain

0.25

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.016

MetaRNN

Benign

0.34

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.80

PrimateAI

Pathogenic

0.86

PROVEAN

Benign

-2.1

REVEL

Benign

0.17

Sift

Benign

0.22

Sift4G

Benign

0.20

Polyphen

0.97

Vest4

0.52

MutPred

0.52

Gain of glycosylation at S1116 (P = 0.0452);

MVP

0.19

MPC

1.2

ClinPred

0.84

GERP RS

5.7

Varity_R

0.47

gMVP

0.77

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.

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