chrX-54470644-G-A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_Strong

The NM_004463.3(FGD1):​c.598C>T​(p.Pro200Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000278 in 1,078,510 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 20)
Exomes 𝑓: 0.0000028 ( 0 hom. 1 hem. )

Consequence

FGD1
NM_004463.3 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.246
Variant links:
Genes affected
FGD1 (HGNC:3663): (FYVE, RhoGEF and PH domain containing 1) This gene encodes a protein that contains Dbl (DH) and pleckstrin (PH) homology domains and is similar to the Rho family of small GTP-binding proteins. The encoded protein specifically binds to the Rho family GTPase Cdc42Hs and can stimulate the GDP-GTP exchange of the isoprenylated form of Cdc42Hs. It also stimulates the mitogen activated protein kinase cascade leading to c-Jun kinase SAPK/JNK1 activation. Defects in this gene are the cause of the faciogenital dysplasia in Aarskog-Scott syndrome and a syndromatic form of X-linked cognitive disability. [provided by RefSeq, Jul 2017]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), FGD1. . Gene score misZ 3.5183 (greater than the threshold 3.09). GenCC has associacion of gene with Aarskog-Scott syndrome, X-linked.
BP4
Computational evidence support a benign effect (MetaRNN=0.06676462).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FGD1NM_004463.3 linkuse as main transcriptc.598C>T p.Pro200Ser missense_variant 3/18 ENST00000375135.4 NP_004454.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FGD1ENST00000375135.4 linkuse as main transcriptc.598C>T p.Pro200Ser missense_variant 3/181 NM_004463.3 ENSP00000364277 P1

Frequencies

GnomAD3 genomes
Cov.:
20
GnomAD3 exomes
AF:
0.00000581
AC:
1
AN:
171995
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
59237
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000132
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000278
AC:
3
AN:
1078510
Hom.:
0
Cov.:
32
AF XY:
0.00000285
AC XY:
1
AN XY:
350814
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:
0.00000361
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
20
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

Aarskog syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingMayo Clinic Laboratories, Mayo ClinicJun 22, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.072
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.83
CADD
Benign
12
DANN
Uncertain
0.99
DEOGEN2
Benign
0.098
T
FATHMM_MKL
Benign
0.053
N
LIST_S2
Benign
0.69
T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.067
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.34
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-1.5
N
REVEL
Benign
0.072
Sift
Benign
0.29
T
Sift4G
Benign
0.28
T
Polyphen
0.0
B
Vest4
0.073
MutPred
0.22
Gain of phosphorylation at P200 (P = 0.0052);
MVP
0.35
MPC
0.29
ClinPred
0.078
T
GERP RS
1.2
Varity_R
0.046
gMVP
0.12

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: rs773941303; hg19: chrX-54497077; COSMIC: COSV64308403; API