7-127595670-G-A

Variant summary

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

The NM_020369.3(FSCN3):​c.508G>A​(p.Ala170Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000958 in 1,461,626 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

FSCN3
NM_020369.3 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.511
Variant links:
Genes affected
FSCN3 (HGNC:3961): (fascin actin-bundling protein 3) Predicted to enable actin filament binding activity. Predicted to be involved in actin filament bundle assembly; cell migration; and establishment or maintenance of cell polarity. Predicted to be located in cytoskeleton. Predicted to be active in several cellular components, including lamellipodium; microvillus; and ruffle. [provided by Alliance of Genome Resources, Apr 2022]

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=0.17291987).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FSCN3NM_020369.3 linkuse as main transcriptc.508G>A p.Ala170Thr missense_variant 2/7 ENST00000265825.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FSCN3ENST00000265825.6 linkuse as main transcriptc.508G>A p.Ala170Thr missense_variant 2/71 NM_020369.3 P1Q9NQT6-1
FSCN3ENST00000478821.1 linkuse as main transcriptc.106G>A p.Ala36Thr missense_variant 2/35
FSCN3ENST00000469242.1 linkuse as main transcriptn.230G>A non_coding_transcript_exon_variant 1/23

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251158
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135714
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:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461626
Hom.:
0
Cov.:
32
AF XY:
0.00000550
AC XY:
4
AN XY:
727138
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:
0.0000108
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.0000113

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 GeneticsFeb 22, 2023The c.508G>A (p.A170T) alteration is located in exon 2 (coding exon 2) of the FSCN3 gene. This alteration results from a G to A substitution at nucleotide position 508, causing the alanine (A) at amino acid position 170 to be replaced by a threonine (T). 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
0.082
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
17
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0072
T;.
Eigen
Benign
-0.069
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.066
N
LIST_S2
Benign
0.69
T;T
M_CAP
Benign
0.0090
T
MetaRNN
Benign
0.17
T;T
MetaSVM
Benign
-0.86
T
MutationAssessor
Uncertain
2.6
M;.
MutationTaster
Benign
0.87
N;N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-1.4
N;.
REVEL
Benign
0.090
Sift
Benign
0.13
T;.
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.22
MutPred
0.41
Gain of glycosylation at A170 (P = 0.0711);.;
MVP
0.50
MPC
0.076
ClinPred
0.60
D
GERP RS
3.8
Varity_R
0.064
gMVP
0.24

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: rs1378024231; hg19: chr7-127235724; COSMIC: COSV50001242; COSMIC: COSV50001242; API