rs1208033042

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001370298.3(FGD4):​c.848G>A​(p.Ser283Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 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. S283I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

FGD4
NM_001370298.3 missense

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.30
Variant links:
Genes affected
FGD4 (HGNC:19125): (FYVE, RhoGEF and PH domain containing 4) This gene encodes a protein that is involved in the regulation of the actin cytoskeleton and cell shape. This protein contains an actin filament-binding domain, which together with its Dbl homology domain and one of its pleckstrin homology domains, can form microspikes. This protein can activate MAPK8 independently of the actin filament-binding domain, and it is also involved in the activation of CDC42 via the exchange of bound GDP for free GTP. The activation of CDC42 also enables this protein to play a role in mediating the cellular invasion of Cryptosporidium parvum, an intracellular parasite that infects the gastrointestinal tract. Mutations in this gene can cause Charcot-Marie-Tooth disease type 4H (CMT4H), a disorder of the peripheral nervous system. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2015]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07351887).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FGD4NM_001370298.3 linkuse as main transcriptc.848G>A p.Ser283Asn missense_variant 4/17 ENST00000534526.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FGD4ENST00000534526.7 linkuse as main transcriptc.848G>A p.Ser283Asn missense_variant 4/175 NM_001370298.3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251428
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135884
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461876
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727236
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:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.062
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.69
CADD
Benign
0.080
DANN
Benign
0.46
DEOGEN2
Benign
0.010
T;T;T;T;T;T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.0061
N
LIST_S2
Benign
0.44
T;T;T;T;T;T
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.074
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.34
.;.;.;N;.;.
MutationTaster
Benign
1.0
N;N;N;N;N;N;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.55
N;N;N;N;N;N
REVEL
Benign
0.070
Sift
Benign
0.43
T;T;T;T;T;T
Sift4G
Benign
0.47
T;T;T;T;T;T
Polyphen
0.0
.;B;B;B;.;B
Vest4
0.022
MutPred
0.28
.;.;.;.;.;Loss of glycosylation at S258 (P = 0.004);
MVP
0.55
MPC
0.30
ClinPred
0.027
T
GERP RS
-10
Varity_R
0.11
gMVP
0.11

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: rs1208033042; hg19: chr12-32735238; API