chr1-176876585-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_004319.3(ASTN1):​c.3415G>A​(p.Val1139Met) variant causes a missense change. The variant allele was found at a frequency of 0.000129 in 1,614,072 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

ASTN1
NM_004319.3 missense

Scores

1
8
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.94
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASTN1NM_004319.3 linkuse as main transcriptc.3415G>A p.Val1139Met missense_variant 21/23 ENST00000361833.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASTN1ENST00000361833.7 linkuse as main transcriptc.3415G>A p.Val1139Met missense_variant 21/231 NM_004319.3 P1O14525-2
ASTN1ENST00000367657.7 linkuse as main transcriptc.3415G>A p.Val1139Met missense_variant 21/231
ASTN1ENST00000424564.2 linkuse as main transcriptc.3415G>A p.Val1139Met missense_variant 21/221 O14525-3

Frequencies

GnomAD3 genomes
AF:
0.000171
AC:
26
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000314
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000103
AC:
26
AN:
251228
Hom.:
0
AF XY:
0.000118
AC XY:
16
AN XY:
135758
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000176
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000125
AC:
183
AN:
1461872
Hom.:
0
Cov.:
31
AF XY:
0.000120
AC XY:
87
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000152
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.000171
AC:
26
AN:
152200
Hom.:
0
Cov.:
33
AF XY:
0.000134
AC XY:
10
AN XY:
74356
show subpopulations
Gnomad4 AFR
AF:
0.000314
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000196
Hom.:
0
Bravo
AF:
0.000181
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000123
AC:
15
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

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 submitterclinical testingAmbry GeneticsJun 18, 2021The c.3415G>A (p.V1139M) alteration is located in exon 21 (coding exon 21) of the ASTN1 gene. This alteration results from a G to A substitution at nucleotide position 3415, causing the valine (V) at amino acid position 1139 to be replaced by a methionine (M). 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
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.21
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.074
T;.;.
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.89
D;D;D
M_CAP
Benign
0.040
D
MetaRNN
Uncertain
0.46
T;T;T
MetaSVM
Benign
-0.66
T
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.78
T
PROVEAN
Benign
-0.94
N;N;N
REVEL
Benign
0.21
Sift
Uncertain
0.016
D;D;D
Sift4G
Uncertain
0.0050
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.58
MVP
0.31
MPC
0.85
ClinPred
0.20
T
GERP RS
5.3
gMVP
0.75

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: rs138978807; hg19: chr1-176845721; COSMIC: COSV62502122; API