Variant 1-176884476-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_004319.3(ASTN1):c.3089C>T(p.Thr1030Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000129 in 1,612,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00041 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

ASTN1
NM_004319.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 2.32

Variant links:

Genes affected

ASTN1 (HGNC:773): (astrotactin 1) Astrotactin is a neuronal adhesion molecule required for glial-guided migration of young postmitotic neuroblasts in cortical regions of developing brain, including cerebrum, hippocampus, cerebellum, and olfactory bulb (Fink et al., 1995).[supplied by OMIM, Jun 2009]

ASTN1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.025105715).

BP6

Variant 1-176884476-G-A is Benign according to our data. Variant chr1-176884476-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 2569888.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASTN1	NM_004319.3 linkuse as main transcript	c.3089C>T	p.Thr1030Met	missense_variant	19/23	ENST00000361833.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ASTN1	ENST00000361833.7 linkuse as main transcript	c.3089C>T	p.Thr1030Met	missense_variant	19/23	1	NM_004319.3	P1	O14525-2
ASTN1	ENST00000367657.7 linkuse as main transcript	c.3089C>T	p.Thr1030Met	missense_variant	19/23	1
ASTN1	ENST00000424564.2 linkuse as main transcript	c.3089C>T	p.Thr1030Met	missense_variant	19/22	1			O14525-3

Frequencies

GnomAD3 genomes

AF:

0.000407

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00125

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000103

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000104

AC:

AN:

251150

Hom.:

AF XY:

0.0000811

AC XY:

AN XY:

135712

show subpopulations

Gnomad AFR exome

AF:

0.00105

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:

0.0000705

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000100

AC:

146

AN:

1460594

Hom.:

Cov.:

AF XY:

0.0000950

AC XY:

AN XY:

726376

show subpopulations

Gnomad4 AFR exome

AF:

0.00114

Gnomad4 AMR exome

AF:

0.0000895

Gnomad4 ASJ exome

AF:

0.0000766

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000756

Gnomad4 OTH exome

AF:

0.000265

GnomAD4 genome

AF:

0.000407

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.00125

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000998

Hom.:

Bravo

AF:

0.000468

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000908

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000988

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 07, 2023

The c.3089C>T (p.T1030M) alteration is located in exon 19 (coding exon 19) of the ASTN1 gene. This alteration results from a C to T substitution at nucleotide position 3089, causing the threonine (T) at amino acid position 1030 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Nov 01, 2023

ASTN1: BP4 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Benign

0.88

DEOGEN2

Benign

0.041

T;.;.

Eigen

Benign

-0.67

Eigen_PC

Benign

-0.52

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.74

T;T;T

M_CAP

Benign

0.0086

MetaRNN

Benign

0.025

T;T;T

MetaSVM

Benign

-1.0

MutationTaster

Benign

0.90

N;N;N;N

PrimateAI

Benign

0.40

PROVEAN

Benign

-0.73

N;N;N

REVEL

Benign

0.033

Sift

Benign

0.12

T;T;T

Sift4G

Benign

0.25

T;T;T

Polyphen

0.013

B;B;.

Vest4

0.33

MVP

0.16

MPC

0.25

ClinPred

0.022

GERP RS

1.8

gMVP

0.33

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