chr9-116487455-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001365068.1(ASTN2):​c.3401C>T​(p.Thr1134Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000873 in 1,614,020 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0011 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00085 ( 11 hom. )

Consequence

ASTN2
NM_001365068.1 missense

Scores

2
8
8

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 9.28
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.007237166).
BP6
Variant 9-116487455-G-A is Benign according to our data. Variant chr9-116487455-G-A is described in ClinVar as [Benign]. Clinvar id is 708046.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00111 (169/152228) while in subpopulation EAS AF= 0.0297 (153/5158). AF 95% confidence interval is 0.0258. There are 2 homozygotes in gnomad4. There are 102 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASTN2NM_001365068.1 linkuse as main transcriptc.3401C>T p.Thr1134Ile missense_variant 20/23 ENST00000313400.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASTN2ENST00000313400.9 linkuse as main transcriptc.3401C>T p.Thr1134Ile missense_variant 20/235 NM_001365068.1 A2O75129-1

Frequencies

GnomAD3 genomes
AF:
0.00111
AC:
169
AN:
152110
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0296
Gnomad SAS
AF:
0.00269
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.00233
AC:
585
AN:
251212
Hom.:
10
AF XY:
0.00217
AC XY:
295
AN XY:
135770
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0302
Gnomad SAS exome
AF:
0.000784
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.000848
AC:
1240
AN:
1461792
Hom.:
11
Cov.:
30
AF XY:
0.000879
AC XY:
639
AN XY:
727204
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0267
Gnomad4 SAS exome
AF:
0.00114
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000719
Gnomad4 OTH exome
AF:
0.00118
GnomAD4 genome
AF:
0.00111
AC:
169
AN:
152228
Hom.:
2
Cov.:
32
AF XY:
0.00137
AC XY:
102
AN XY:
74422
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.0297
Gnomad4 SAS
AF:
0.00270
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.00172
Hom.:
4
Bravo
AF:
0.00131
ExAC
AF:
0.00223
AC:
271
Asia WGS
AF:
0.00808
AC:
28
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

ASTN2-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesDec 27, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.56
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.16
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.037
T;.;.;.;.;.
Eigen
Uncertain
0.59
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D;D;D;D;D;D
MetaRNN
Benign
0.0072
T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.55
N;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.8
N;D;D;N;N;D
REVEL
Uncertain
0.32
Sift
Uncertain
0.0030
D;D;D;D;D;D
Sift4G
Uncertain
0.0040
D;D;D;D;D;D
Polyphen
0.97
D;D;D;.;P;D
Vest4
0.67
MVP
0.043
MPC
0.25
ClinPred
0.088
T
GERP RS
5.5
Varity_R
0.47
gMVP
0.75

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs142855762; hg19: chr9-119249734; API