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rs199422186

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_018136.5(ASPM):c.9238A>T(p.Lys3080Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,612,210 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: đť‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes đť‘“: 0.0000027 ( 0 hom. )

Consequence

ASPM
NM_018136.5 stop_gained

Scores

2
2
3

Clinical Significance

Likely pathogenic no assertion criteria provided P:1O:1

Conservation

PhyloP100: 1.61
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 11 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;
PP5
Variant 1-197093108-T-A is Pathogenic according to our data. Variant chr1-197093108-T-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 21622.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr1-197093108-T-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASPMNM_018136.5 linkuse as main transcriptc.9238A>T p.Lys3080Ter stop_gained 21/28 ENST00000367409.9
ASPMNM_001206846.2 linkuse as main transcriptc.4483A>T p.Lys1495Ter stop_gained 20/27

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASPMENST00000367409.9 linkuse as main transcriptc.9238A>T p.Lys3080Ter stop_gained 21/281 NM_018136.5 P1Q8IZT6-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151942
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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
AF:
0.00000274
AC:
4
AN:
1460268
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726450
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151942
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74204
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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

Significance: Likely pathogenic
Submissions summary: Pathogenic:1Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Microcephaly 5, primary, autosomal recessive Pathogenic:1Other:1
Likely pathogenic, no assertion criteria providedclinical testingService de Génétique Moléculaire, Hôpital Robert Debré-- -
not provided, no classification providedliterature onlyGeneReviews-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.32
Cadd
Pathogenic
35
Dann
Uncertain
0.97
Eigen
Uncertain
0.21
Eigen_PC
Benign
-0.13
FATHMM_MKL
Benign
0.38
N
MutationTaster
Benign
1.0
A;A;A
Vest4
0.69
GERP RS
1.3

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: rs199422186; hg19: chr1-197062238; API