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GeneBe

1-176864435-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_004319.3(ASTN1):c.3734G>A(p.Arg1245His) variant causes a missense change. The variant allele was found at a frequency of 0.000227 in 1,614,116 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00085 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

ASTN1
NM_004319.3 missense

Scores

1
7
8

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 7.20
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0336304).
BP6
Variant 1-176864435-C-T is Benign according to our data. Variant chr1-176864435-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3057643.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASTN1NM_004319.3 linkuse as main transcriptc.3734G>A p.Arg1245His missense_variant 23/23 ENST00000361833.7
ASTN1NM_001364856.2 linkuse as main transcriptc.3758G>A p.Arg1253His missense_variant 23/23
ASTN1NM_001286164.2 linkuse as main transcriptc.3647+4409G>A intron_variant
ASTN1XM_017001341.3 linkuse as main transcriptc.3671+4409G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASTN1ENST00000361833.7 linkuse as main transcriptc.3734G>A p.Arg1245His missense_variant 23/231 NM_004319.3 P1O14525-2
ASTN1ENST00000367657.7 linkuse as main transcriptc.3647+4409G>A intron_variant 1

Frequencies

GnomAD3 genomes
AF:
0.000848
AC:
129
AN:
152132
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00299
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000441
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000219
AC:
55
AN:
251110
Hom.:
0
AF XY:
0.000155
AC XY:
21
AN XY:
135694
show subpopulations
Gnomad AFR exome
AF:
0.00289
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.0000993
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000163
AC:
238
AN:
1461866
Hom.:
0
Cov.:
32
AF XY:
0.000139
AC XY:
101
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.00290
Gnomad4 AMR exome
AF:
0.0000894
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000115
Gnomad4 OTH exome
AF:
0.0000993
GnomAD4 genome
AF:
0.000847
AC:
129
AN:
152250
Hom.:
0
Cov.:
32
AF XY:
0.000913
AC XY:
68
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.00298
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000240
Hom.:
0
Bravo
AF:
0.000997
ESP6500AA
AF:
0.00182
AC:
8
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000280
AC:
34
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

ASTN1-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesApr 08, 2023This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.16
Cadd
Pathogenic
28
Dann
Pathogenic
1.0
Eigen
Uncertain
0.39
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.043
D
MetaRNN
Benign
0.034
T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.27
Sift
Uncertain
0.015
D
Sift4G
Uncertain
0.019
D
Polyphen
1.0
D
Vest4
0.66
MVP
0.26
MPC
0.96
ClinPred
0.11
T
GERP RS
4.6
gMVP
0.57

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.

Other links and lift over

dbSNP: rs148482637; hg19: chr1-176833571; COSMIC: COSV62496687; COSMIC: COSV62496687; API