rs587783275
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Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_018136.5(ASPM):c.8017C>T(p.Gln2673*) variant causes a stop gained change. The variant allele was found at a frequency of 0.00000434 in 1,612,084 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 Pathogenic (★★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )
Consequence
ASPM
NM_018136.5 stop_gained
NM_018136.5 stop_gained
Scores
4
2
1
Clinical Significance
Conservation
PhyloP100: 6.49
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 18 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 1-197101234-G-A is Pathogenic according to our data. Variant chr1-197101234-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 157885.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-197101234-G-A is described in Lovd as [Pathogenic]. Variant chr1-197101234-G-A is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ASPM | NM_018136.5 | c.8017C>T | p.Gln2673* | stop_gained | 18/28 | ENST00000367409.9 | NP_060606.3 | |
ASPM | NM_001206846.2 | c.4066-5070C>T | intron_variant | NP_001193775.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
ASPM | ENST00000367409.9 | c.8017C>T | p.Gln2673* | stop_gained | 18/28 | 1 | NM_018136.5 | ENSP00000356379.4 |
Frequencies
GnomAD3 genomes AF: 0.0000132 AC: 2AN: 151742Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000401 AC: 1AN: 249546Hom.: 0 AF XY: 0.00000742 AC XY: 1AN XY: 134850
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GnomAD4 exome AF: 0.00000342 AC: 5AN: 1460342Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 726480
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GnomAD4 genome AF: 0.0000132 AC: 2AN: 151742Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74100
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ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Microcephaly 5, primary, autosomal recessive Pathogenic:3
Pathogenic, criteria provided, single submitter | research | Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center | Mar 14, 2024 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Feb 08, 2013 | - - |
Likely pathogenic, no assertion criteria provided | clinical testing | Biochemical Molecular Genetic Laboratory, King Abdulaziz Medical City | Sep 26, 2019 | - - |
Computational scores
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Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
Eigen
Pathogenic
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
Vest4
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Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at