chr7-127595656-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.494G>A​(p.Arg165His) variant causes a missense change. The variant allele was found at a frequency of 0.000026 in 1,613,638 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R165C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 1 hom. )

Consequence

FSCN3
NM_020369.3 missense

Scores

1
5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.42
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=0.177484).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FSCN3NM_020369.3 linkuse as main transcriptc.494G>A p.Arg165His missense_variant 2/7 ENST00000265825.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FSCN3ENST00000265825.6 linkuse as main transcriptc.494G>A p.Arg165His missense_variant 2/71 NM_020369.3 P1Q9NQT6-1
FSCN3ENST00000478821.1 linkuse as main transcriptc.92G>A p.Arg31His missense_variant 2/35
FSCN3ENST00000469242.1 linkuse as main transcriptn.216G>A non_coding_transcript_exon_variant 1/23

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251112
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135694
show subpopulations
Gnomad AFR exome
AF:
0.000123
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:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461332
Hom.:
1
Cov.:
33
AF XY:
0.0000289
AC XY:
21
AN XY:
727020
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
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:
0.0000306
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152306
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000565
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000412
AC:
5
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 GeneticsFeb 08, 2023The c.494G>A (p.R165H) 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 494, causing the arginine (R) at amino acid position 165 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
Benign
0.10
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.36
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.0023
T;.
Eigen
Uncertain
0.39
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.84
T;T
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.18
T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Uncertain
2.5
M;.
MutationTaster
Benign
0.97
D;D
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.77
N;.
REVEL
Benign
0.15
Sift
Uncertain
0.0090
D;.
Sift4G
Benign
0.087
T;T
Polyphen
0.99
D;.
Vest4
0.55
MVP
0.41
MPC
0.11
ClinPred
0.74
D
GERP RS
5.6
Varity_R
0.13
gMVP
0.48

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: rs143868079; hg19: chr7-127235710; COSMIC: COSV50001474; COSMIC: COSV50001474; API