19-38411201-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_170604.3(RASGRP4):ā€‹c.1766A>Gā€‹(p.Glu589Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,666 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

RASGRP4
NM_170604.3 missense

Scores

6
10
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.12
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RASGRP4NM_170604.3 linkc.1766A>G p.Glu589Gly missense_variant Exon 15 of 17 ENST00000615439.5 NP_733749.1 Q8TDF6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RASGRP4ENST00000615439.5 linkc.1766A>G p.Glu589Gly missense_variant Exon 15 of 17 1 NM_170604.3 ENSP00000479844.1 Q8TDF6-1
RASGRP4ENST00000587738.2 linkc.1766A>G p.Glu589Gly missense_variant Exon 15 of 17 5 ENSP00000465772.1 Q8TDF6-1
RASGRP4ENST00000586305.5 linkc.1724A>G p.Glu575Gly missense_variant Exon 15 of 17 1 ENSP00000467604.1 Q8TDF6-2
RASGRP4ENST00000454404.6 linkc.1664A>G p.Glu555Gly missense_variant Exon 15 of 17 1 ENSP00000416463.2 Q8TDF6-8
RASGRP4ENST00000587753.5 linkc.1559A>G p.Glu520Gly missense_variant Exon 15 of 17 1 ENSP00000468483.1 Q8TDF6-9
RASGRP4ENST00000614135.4 linkc.1490A>G p.Glu497Gly missense_variant Exon 14 of 16 5 ENSP00000479078.1 Q8TDF6-5
RASGRP4ENST00000617966.4 linkc.1475A>G p.Glu492Gly missense_variant Exon 13 of 15 5 ENSP00000479888.1 Q8TDF6-7
RASGRP4ENST00000622174.4 linkc.1199A>G p.Glu400Gly missense_variant Exon 12 of 14 5 ENSP00000484345.1 Q8TDF6-6
RASGRP4ENST00000589358.5 linkn.1766A>G non_coding_transcript_exon_variant Exon 15 of 18 5 ENSP00000465742.1 Q8TDF6-1
RASGRP4ENST00000589474.5 linkn.1724A>G non_coding_transcript_exon_variant Exon 15 of 18 5 ENSP00000466928.1 Q8TDF6-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461666
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727116
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:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Dec 20, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.1766A>G (p.E589G) alteration is located in exon 15 (coding exon 15) of the RASGRP4 gene. This alteration results from a A to G substitution at nucleotide position 1766, causing the glutamic acid (E) at amino acid position 589 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
0.21
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.22
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.76
.;.;.;.;.;.;.;.;D;.;D
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.47
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Uncertain
0.92
.;.;.;D;D;.;D;D;D;D;.
M_CAP
Uncertain
0.27
D
MetaRNN
Uncertain
0.72
D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
0.91
D
MutationAssessor
Uncertain
2.6
.;.;.;.;.;.;.;.;M;.;M
PrimateAI
Benign
0.47
T
PROVEAN
Pathogenic
-5.6
.;.;.;.;.;.;D;D;.;D;.
REVEL
Pathogenic
0.71
Sift
Uncertain
0.0010
.;.;.;.;.;.;D;D;.;D;.
Sift4G
Uncertain
0.016
D;D;D;D;D;D;D;D;D;D;D
Polyphen
0.99
D;.;.;.;.;.;.;.;D;.;D
Vest4
0.58
MutPred
0.50
.;.;.;.;.;.;.;.;Gain of MoRF binding (P = 0.0256);.;Gain of MoRF binding (P = 0.0256);
MVP
0.83
MPC
1.1
ClinPred
0.99
D
GERP RS
5.8
Varity_R
0.57
gMVP
0.67

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.28
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.28
Position offset: 5

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: rs1971240066; hg19: chr19-38901841; API