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

Variant summary

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

The NM_001365068.1(ASTN2):c.3448A>T(p.Ser1150Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,818 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. S1150G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 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:

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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=0.26083678).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASTN2	NM_001365068.1 linkuse as main transcript	c.3448A>T	p.Ser1150Cys	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>T	p.Ser1150Cys	missense_variant	20/23	5	NM_001365068.1	A2	O75129-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461818

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727218

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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

Sep 22, 2023

The c.3295A>T (p.S1099C) alteration is located in exon 19 (coding exon 19) of the ASTN2 gene. This alteration results from a A to T substitution at nucleotide position 3295, causing the serine (S) at amino acid position 1099 to be replaced by a cysteine (C). 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

0.26

BayesDel_addAF

Benign

0.00049

BayesDel_noAF

Benign

-0.24

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.044

T;.;.;.;.;.

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.88

D;D;D;D;D;D

M_CAP

Benign

0.018

MetaRNN

Benign

0.26

T;T;T;T;T;T

MetaSVM

Benign

-0.74

MutationAssessor

Benign

0.81

L;.;.;.;.;.

MutationTaster

Benign

0.99

D;D;D;D;D;D

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-1.4

N;N;N;N;N;N

REVEL

Benign

0.14

Sift

Uncertain

0.028

D;D;D;D;D;D

Sift4G

Uncertain

0.043

D;D;D;D;D;D

Polyphen

0.68

P;D;D;.;D;D

Vest4

0.54

MutPred

0.33

Loss of disorder (P = 0.0043);.;.;.;.;.;

MVP

0.043

MPC

0.23

ClinPred

0.67

GERP RS

5.5

Varity_R

0.39

gMVP

0.55

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over