rs749462256

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_001145648.3(RASGRF1):​c.3248G>T​(p.Arg1083Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,459,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1083H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

RASGRF1
NM_001145648.3 missense

Scores

4
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.10

Publications

2 publications found
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]

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.40796065).
BS2
High AC in GnomAdExome4 at 8 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001145648.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RASGRF1
NM_001145648.3
MANE Select
c.3248G>Tp.Arg1083Leu
missense
Exon 23 of 27NP_001139120.1Q13972-3
RASGRF1
NM_002891.6
c.3296G>Tp.Arg1099Leu
missense
Exon 24 of 28NP_002882.3
RASGRF1
NM_153815.3
c.944G>Tp.Arg315Leu
missense
Exon 10 of 14NP_722522.1Q13972-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RASGRF1
ENST00000558480.7
TSL:2 MANE Select
c.3248G>Tp.Arg1083Leu
missense
Exon 23 of 27ENSP00000452781.2Q13972-3
RASGRF1
ENST00000394745.3
TSL:1
c.944G>Tp.Arg315Leu
missense
Exon 10 of 14ENSP00000378228.3Q13972-2
RASGRF1
ENST00000560334.5
TSL:1
n.3118G>T
non_coding_transcript_exon
Exon 22 of 24

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000796
AC:
2
AN:
251168
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000548
AC:
8
AN:
1459600
Hom.:
0
Cov.:
34
AF XY:
0.00000413
AC XY:
3
AN XY:
726200
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33410
American (AMR)
AF:
0.00
AC:
0
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39682
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86216
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00000631
AC:
7
AN:
1109954
Other (OTH)
AF:
0.00
AC:
0
AN:
60330
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
T
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.17
FATHMM_MKL
Benign
0.56
D
LIST_S2
Uncertain
0.93
D
M_CAP
Benign
0.0089
T
MetaRNN
Benign
0.41
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.92
L
PhyloP100
1.1
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-3.6
D
REVEL
Benign
0.15
Sift
Benign
0.042
D
Sift4G
Uncertain
0.033
D
Vest4
0.60
MVP
0.43
MPC
0.78
ClinPred
0.92
D
GERP RS
4.5
Varity_R
0.35
gMVP
0.54
Mutation Taster
=72/28
polymorphism

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

Other links and lift over

dbSNP: rs749462256; hg19: chr15-79277515; API