chr19-38411347-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_170604.3(RASGRP4):​c.1715G>A​(p.Arg572Gln) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000874 in 1,601,168 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 18/24 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R572L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000083 ( 0 hom. )

Consequence

RASGRP4
NM_170604.3 missense, splice_region

Scores

3
15
Splicing: ADA: 0.0002085
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.161

Publications

0 publications found
Variant links:
Genes affected
RASGRP4 (HGNC:18958): (RAS guanyl releasing protein 4) The protein encoded by this gene is a member of the Ras guanyl nucleotide-releasing protein (RasGRP) family of Ras guanine nucleotide exchange factors. It contains a Ras exchange motif, a diacylglycerol-binding domain, and two calcium-binding EF hands. This protein was shown to activate H-Ras in a cation-dependent manner in vitro. Expression of this protein in myeloid cell lines was found to be correlated with elevated level of activated RAS protein, and the RAS activation can be greatly enhanced by phorbol ester treatment, which suggested a role of this protein in diacylglycerol regulated cell signaling pathways. Studies of a mast cell leukemia cell line expressing substantial amounts of abnormal transcripts of this gene indicated that this gene may play an important role in the final stages of mast cell development. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2009]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.21924457).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_170604.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RASGRP4
NM_170604.3
MANE Select
c.1715G>Ap.Arg572Gln
missense splice_region
Exon 14 of 17NP_733749.1Q8TDF6-1
RASGRP4
NM_001146202.2
c.1673G>Ap.Arg558Gln
missense splice_region
Exon 14 of 17NP_001139674.1Q8TDF6-2
RASGRP4
NM_001146205.2
c.1613G>Ap.Arg538Gln
missense splice_region
Exon 14 of 17NP_001139677.1Q8TDF6-8

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RASGRP4
ENST00000615439.5
TSL:1 MANE Select
c.1715G>Ap.Arg572Gln
missense splice_region
Exon 14 of 17ENSP00000479844.1Q8TDF6-1
RASGRP4
ENST00000587738.2
TSL:5
c.1715G>Ap.Arg572Gln
missense splice_region
Exon 14 of 17ENSP00000465772.1Q8TDF6-1
RASGRP4
ENST00000586305.5
TSL:1
c.1673G>Ap.Arg558Gln
missense splice_region
Exon 14 of 17ENSP00000467604.1Q8TDF6-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000828
AC:
12
AN:
1448998
Hom.:
0
Cov.:
32
AF XY:
0.00000278
AC XY:
2
AN XY:
719532
show subpopulations
African (AFR)
AF:
0.0000302
AC:
1
AN:
33144
American (AMR)
AF:
0.00
AC:
0
AN:
42816
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25742
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38934
South Asian (SAS)
AF:
0.0000119
AC:
1
AN:
84306
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5746
European-Non Finnish (NFE)
AF:
0.00000723
AC:
8
AN:
1105760
Other (OTH)
AF:
0.0000334
AC:
2
AN:
59918
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
2
3
4
5
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
AF:
0.0000131
AC:
2
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74330
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000241
AC:
1
AN:
41430
American (AMR)
AF:
0.00
AC:
0
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.400
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00
Hom.:
0

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.0018
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.039
T
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.14
FATHMM_MKL
Benign
0.47
N
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.036
D
MetaRNN
Benign
0.22
T
MetaSVM
Uncertain
0.065
D
MutationAssessor
Benign
-0.19
N
PhyloP100
0.16
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-2.0
N
REVEL
Benign
0.18
Sift
Benign
0.059
T
Sift4G
Uncertain
0.019
D
Polyphen
0.010
B
Vest4
0.23
MutPred
0.26
Gain of sheet (P = 0.0827)
MVP
0.82
MPC
0.35
ClinPred
0.63
D
GERP RS
2.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.10
gMVP
0.24
Mutation Taster
=85/15
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00021
dbscSNV1_RF
Benign
0.20
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: rs776295355; hg19: chr19-38901987; API