rs1474070705

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BP4_Strong

The NM_004463.3(FGD1):​c.2851C>T​(p.Pro951Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,208,760 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples 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: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.0000036 ( 0 hom. 0 hem. )

Consequence

FGD1
NM_004463.3 missense

Scores

1
2
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0780
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]
TSR2 (HGNC:25455): (TSR2 ribosome maturation factor) The protein encoded by this gene appears to repress the transcription of NF-kappaB and may be involved in apoptosis. Defects in this gene are a cause of Diamond-Blackfan anemia. [provided by RefSeq, Oct 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2
Missense variant in the FGD1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 11 curated pathogenic missense variants (we use a threshold of 10). The gene has 24 curated benign missense variants. Gene score misZ: 3.5183 (above the threshold of 3.09). GenCC associations: The gene is linked to Aarskog-Scott syndrome, X-linked.
BP4
Computational evidence support a benign effect (MetaRNN=0.055527866).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FGD1NM_004463.3 linkc.2851C>T p.Pro951Ser missense_variant Exon 18 of 18 ENST00000375135.4 NP_004454.2 P98174A0A024R9Y5
TSR2NM_058163.3 linkc.*1594G>A 3_prime_UTR_variant Exon 5 of 5 ENST00000375151.5 NP_477511.1 Q969E8A0A024R9U9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FGD1ENST00000375135.4 linkc.2851C>T p.Pro951Ser missense_variant Exon 18 of 18 1 NM_004463.3 ENSP00000364277.3 P98174
TSR2ENST00000375151.5 linkc.*1594G>A 3_prime_UTR_variant Exon 5 of 5 1 NM_058163.3 ENSP00000364293.4 Q969E8

Frequencies

GnomAD3 genomes
AF:
0.0000180
AC:
2
AN:
111401
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33575
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000378
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000365
AC:
4
AN:
1097359
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
362779
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:
0.00000356
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000180
AC:
2
AN:
111401
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33575
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000378
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Sep 12, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.2851C>T (p.P951S) alteration is located in exon 18 (coding exon 18) of the FGD1 gene. This alteration results from a C to T substitution at nucleotide position 2851, causing the proline (P) at amino acid position 951 to be replaced by a serine (S). 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
0.074
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
16
DANN
Uncertain
1.0
DEOGEN2
Benign
0.088
T
FATHMM_MKL
Benign
0.085
N
LIST_S2
Benign
0.68
T
M_CAP
Benign
0.038
D
MetaRNN
Benign
0.056
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.55
N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.13
Sift
Uncertain
0.0050
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.0040
B
Vest4
0.15
MutPred
0.13
Loss of catalytic residue at P951 (P = 0.0056);
MVP
0.57
MPC
2.0
ClinPred
0.75
D
GERP RS
3.4
Varity_R
0.10
gMVP
0.26

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: rs1474070705; hg19: chrX-54472577; API