12-47740324-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001098531.4(RAPGEF3):​c.2303G>A​(p.Arg768His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,614,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

RAPGEF3
NM_001098531.4 missense

Scores

11
7
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.41
Variant links:
Genes affected
RAPGEF3 (HGNC:16629): (Rap guanine nucleotide exchange factor 3) Enables guanyl-nucleotide exchange factor activity and protein domain specific binding activity. Involved in several processes, including positive regulation of protein modification process; regulation of actin cytoskeleton organization; and regulation of syncytium formation by plasma membrane fusion. Located in filopodium; lamellipodium; and microvillus. Colocalizes with cortical actin cytoskeleton and plasma membrane. Biomarker of congestive heart failure. [provided by Alliance of Genome Resources, Apr 2022]
RPAP3-DT (HGNC:55477): (RPAP3 divergent transcript)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.859

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RAPGEF3NM_001098531.4 linkuse as main transcriptc.2303G>A p.Arg768His missense_variant 22/28 ENST00000449771.7 NP_001092001.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RAPGEF3ENST00000449771.7 linkuse as main transcriptc.2303G>A p.Arg768His missense_variant 22/282 NM_001098531.4 ENSP00000395708 P4O95398-1
RPAP3-DTENST00000547799.5 linkuse as main transcriptn.1329C>T non_coding_transcript_exon_variant 6/65

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152160
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000716
AC:
18
AN:
251384
Hom.:
0
AF XY:
0.000103
AC XY:
14
AN XY:
135912
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.000294
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000397
AC:
58
AN:
1461790
Hom.:
0
Cov.:
32
AF XY:
0.0000619
AC XY:
45
AN XY:
727220
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000371
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152278
Hom.:
0
Cov.:
33
AF XY:
0.0000537
AC XY:
4
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000622
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000312
Hom.:
0
Bravo
AF:
0.0000113
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000906
AC:
11
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 19, 2024The c.2303G>A (p.R768H) alteration is located in exon 22 (coding exon 22) of the RAPGEF3 gene. This alteration results from a G to A substitution at nucleotide position 2303, causing the arginine (R) at amino acid position 768 to be replaced by a histidine (H). 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
Uncertain
0.55
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Pathogenic
0.32
CADD
Pathogenic
34
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.65
D;.;.;D;T
Eigen
Pathogenic
0.90
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Pathogenic
0.98
.;D;.;D;D
M_CAP
Uncertain
0.20
D
MetaRNN
Pathogenic
0.86
D;D;D;D;D
MetaSVM
Uncertain
0.64
D
MutationAssessor
Pathogenic
3.7
H;.;.;H;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D;D
PrimateAI
Uncertain
0.64
T
PROVEAN
Pathogenic
-4.5
D;D;D;D;D
REVEL
Pathogenic
0.77
Sift
Pathogenic
0.0
D;D;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D;D
Polyphen
0.98
D;.;.;D;.
Vest4
0.98
MVP
0.96
MPC
0.84
ClinPred
0.84
D
GERP RS
4.3
Varity_R
0.76
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.

Other links and lift over

dbSNP: rs368244791; hg19: chr12-48134107; COSMIC: COSV50197972; COSMIC: COSV50197972; API