Variant chr9-116487408-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001365068.1(ASTN2):c.3448A>G(p.Ser1150Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000057 in 1,613,934 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S1150C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

ASTN2
NM_001365068.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.57

Variant links:

Genes affected

ASTN2 (HGNC:17021): (astrotactin 2) This gene encodes a protein that is expressed in the brain and may function in neuronal migration, based on functional studies of the related astrotactin 1 gene in human and mouse. A deletion at this locus has been associated with schizophrenia. Multiple transcript variants encoding different proteins have been found for this locus. [provided by RefSeq, May 2010]

ASTN2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.04551202).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASTN2	NM_001365068.1 linkuse as main transcript	c.3448A>G	p.Ser1150Gly	missense_variant	20/23	ENST00000313400.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ASTN2	ENST00000313400.9 linkuse as main transcript	c.3448A>G	p.Ser1150Gly	missense_variant	20/23	5	NM_001365068.1	A2	O75129-1

Frequencies

GnomAD3 genomes

AF:

0.000368

AC:

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00135

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000875

AC:

AN:

251336

Hom.:

AF XY:

0.0000884

AC XY:

AN XY:

135818

show subpopulations

Gnomad AFR exome

AF:

0.00129

Gnomad AMR exome

AF:

0.0000289

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000246

AC:

AN:

1461816

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

727216

show subpopulations

Gnomad4 AFR exome

AF:

0.00102

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000368

AC:

AN:

152118

Hom.:

Cov.:

AF XY:

0.000363

AC XY:

AN XY:

74316

show subpopulations

Gnomad4 AFR

AF:

0.00135

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000433

Hom.:

Bravo

AF:

0.000366

ESP6500AA

AF:

0.00136

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000906

AC:

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 submitter

clinical testing

Ambry Genetics

Dec 18, 2023

The c.3295A>G (p.S1099G) alteration is located in exon 19 (coding exon 19) of the ASTN2 gene. This alteration results from a A to G substitution at nucleotide position 3295, causing the serine (S) at amino acid position 1099 to be replaced by a glycine (G). 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

0.079

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.041

T;.;.;.;.;.

Eigen

Uncertain

0.21

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.87

D;D;D;D;D;D

M_CAP

Benign

0.0092

MetaRNN

Benign

0.046

T;T;T;T;T;T

MetaSVM

Benign

-0.93

MutationAssessor

Benign

0.81

L;.;.;.;.;.

MutationTaster

Benign

0.97

D;D;D;D;D;D

PrimateAI

Benign

0.48

PROVEAN

Benign

-1.6

N;N;N;N;N;N

REVEL

Benign

0.094

Sift

Benign

0.037

D;D;D;D;D;D

Sift4G

Uncertain

0.060

T;D;T;T;T;T

Polyphen

0.020

B;P;P;.;P;P

Vest4

0.53

MVP

0.043

MPC

0.21

ClinPred

0.039

GERP RS

5.5

Varity_R

0.42

gMVP

0.60

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