Genetic Variant NM_001145648.3:c.3737A>G (chr15-78962181-T-C) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001145648.3(RASGRF1):c.3737A>G(p.Glu1246Gly) variant causes a missense change. The variant allele was found at a frequency of 0.0000157 in 1,589,500 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: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

RASGRF1
NM_001145648.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.12

Variant links:

Genes affected

RASGRF1 (HGNC:9875): (Ras protein specific guanine nucleotide releasing factor 1) The protein encoded by this gene is a guanine nucleotide exchange factor (GEF) similar to the Saccharomyces cerevisiae CDC25 gene product. Functional analysis has demonstrated that this protein stimulates the dissociation of GDP from RAS protein. The studies of the similar gene in mouse suggested that the Ras-GEF activity of this protein in brain can be activated by Ca2+ influx, muscarinic receptors, and G protein beta-gamma subunit. Mouse studies also indicated that the Ras-GEF signaling pathway mediated by this protein may be important for long-term memory. Alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Mar 2009]

RASGRF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.14631754).

BS2

High AC in GnomAdExome4 at 23 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RASGRF1	NM_001145648.3 link	c.3737A>G	p.Glu1246Gly	missense_variant	Exon 27 of 27	ENST00000558480.7	NP_001139120.1	Q8IUU5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RASGRF1	ENST00000558480.7 link	c.3737A>G	p.Glu1246Gly	missense_variant	Exon 27 of 27	2	NM_001145648.3	ENSP00000452781.2	Q13972-3
RASGRF1	ENST00000394745.3 link	c.1433A>G	p.Glu478Gly	missense_variant	Exon 14 of 14	1		ENSP00000378228.3	Q13972-2
RASGRF1	ENST00000419573.7 link	c.3785A>G	p.Glu1262Gly	missense_variant	Exon 28 of 28	2		ENSP00000405963.3	Q13972-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000365

AC:

AN:

218920

Hom.:

AF XY:

0.0000425

AC XY:

AN XY:

117718

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000527

Gnomad NFE exome

AF:

0.0000739

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000160

AC:

AN:

1437326

Hom.:

Cov.:

AF XY:

0.0000168

AC XY:

AN XY:

713232

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.0000575

Gnomad4 NFE exome

AF:

0.0000182

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152174

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74328

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000670

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.00000826

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 19, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3785A>G (p.E1262G) alteration is located in exon 28 (coding exon 28) of the RASGRF1 gene. This alteration results from a A to G substitution at nucleotide position 3785, causing the glutamic acid (E) at amino acid position 1262 to be replaced by a glycine (G). 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

0.31

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.61

.;D;.

Eigen

Benign

-0.18

Eigen_PC

Benign

-0.033

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.82

T;T;T

M_CAP

Benign

0.014

MetaRNN

Benign

0.15

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

.;L;.

PrimateAI

Uncertain

0.50

PROVEAN

Uncertain

-2.9

.;D;D

REVEL

Benign

0.080

Sift

Benign

0.050

.;D;D

Sift4G

Benign

0.11

T;T;T

Vest4

0.074

MVP

0.19

MPC

0.68

ClinPred

0.20

GERP RS

4.0

Varity_R

0.21

gMVP

0.52

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