Genetic Variant FSTL3:p.Gly155Ser (chr19-680447-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_005860.3(FSTL3):c.463G>A(p.Gly155Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000103 in 1,263,396 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000072 ( 0 hom. )

Consequence

FSTL3
NM_005860.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.23

Variant links:

Genes affected

FSTL3 (HGNC:3973): (follistatin like 3) Follistatin-like 3 is a secreted glycoprotein of the follistatin-module-protein family. It may have a role in leukemogenesis. [provided by RefSeq, Jul 2008]

FSTL3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FSTL3	NM_005860.3 link	c.463G>A	p.Gly155Ser	missense_variant	Exon 3 of 5	ENST00000166139.9	NP_005851.1	O95633-1A0A024R1Y8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
FSTL3	ENST00000166139.9 link	c.463G>A	p.Gly155Ser	missense_variant	Exon 3 of 5	1	NM_005860.3	ENSP00000166139.3	O95633-1
FSTL3	ENST00000589185.2 link	c.130G>A	p.Gly44Ser	missense_variant	Exon 1 of 2	2		ENSP00000484376.1	A0A087X1Q2
FSTL3	ENST00000592058.3 link	n.197G>A		non_coding_transcript_exon_variant	Exon 2 of 4	5

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000720

AC:

AN:

1111240

Hom.:

Cov.:

AF XY:

0.00000943

AC XY:

AN XY:

530436

show subpopulations

Gnomad4 AFR exome

AF:

0.0000872

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:

0.00000639

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152156

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74314

show subpopulations

Gnomad4 AFR

AF:

0.0000965

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

Asia WGS

AF:

0.00146

AC:

AN:

3442

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 16, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.463G>A (p.G155S) alteration is located in exon 3 (coding exon 3) of the FSTL3 gene. This alteration results from a G to A substitution at nucleotide position 463, causing the glycine (G) at amino acid position 155 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

0.13

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.42

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.13

T;.

Eigen

Uncertain

0.28

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.97

LIST_S2

Benign

0.81

T;T

M_CAP

Pathogenic

0.71

MetaRNN

Uncertain

0.44

T;T

MetaSVM

Benign

-0.85

MutationAssessor

Benign

1.2

L;.

PrimateAI

Pathogenic

0.86

PROVEAN

Benign

-1.9

N;.

REVEL

Benign

0.21

Sift

Benign

0.20

T;.

Sift4G

Benign

0.45

T;T

Polyphen

0.99

D;.

Vest4

0.12

MutPred

0.33

Gain of phosphorylation at G155 (P = 0.0216);.;

MVP

0.70

MPC

1.5

ClinPred

0.99

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.56

gMVP

0.61

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over