rs149228705

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2

The NM_018136.5(ASPM):ā€‹c.7551T>Gā€‹(p.Tyr2517Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000659 in 151,700 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. Y2517Y) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 33)

Consequence

ASPM
NM_018136.5 stop_gained

Scores

2
5

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.180
Variant links:
Genes affected
ASPM (HGNC:19048): (assembly factor for spindle microtubules) This gene is the human ortholog of the Drosophila melanogaster 'abnormal spindle' gene (asp), which is essential for normal mitotic spindle function in embryonic neuroblasts. Studies in mouse also suggest a role of this gene in mitotic spindle regulation, with a preferential role in regulating neurogenesis. Mutations in this gene are associated with microcephaly primary type 5. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, May 2011]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASPMNM_018136.5 linkuse as main transcriptc.7551T>G p.Tyr2517Ter stop_gained 18/28 ENST00000367409.9
ASPMNM_001206846.2 linkuse as main transcriptc.4066-5536T>G intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASPMENST00000367409.9 linkuse as main transcriptc.7551T>G p.Tyr2517Ter stop_gained 18/281 NM_018136.5 P1Q8IZT6-1

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151700
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
64
GnomAD4 genome
AF:
0.00000659
AC:
1
AN:
151700
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74080
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.36
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
35
DANN
Benign
0.94
Eigen
Benign
-0.45
Eigen_PC
Benign
-0.79
FATHMM_MKL
Benign
0.33
N
MutationTaster
Benign
1.0
A;N;N
Vest4
0.67
GERP RS
-3.6

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: rs149228705; hg19: chr1-197070830; API