chr1-197084263-C-T
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Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_018136.5(ASPM):c.*61G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0001 in 1,258,572 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.00018 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000089 ( 1 hom. )
Consequence
ASPM
NM_018136.5 3_prime_UTR
NM_018136.5 3_prime_UTR
Scores
2
Clinical Significance
Conservation
PhyloP100: -1.91
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 Likely_benign. Variant got -2 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ASPM | NM_018136.5 | c.*61G>A | 3_prime_UTR_variant | 28/28 | ENST00000367409.9 | ||
ASPM | NM_001206846.2 | c.*61G>A | 3_prime_UTR_variant | 27/27 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ASPM | ENST00000367409.9 | c.*61G>A | 3_prime_UTR_variant | 28/28 | 1 | NM_018136.5 | P1 | ||
ASPM | ENST00000294732.11 | c.*61G>A | 3_prime_UTR_variant | 27/27 | 1 | ||||
ASPM | ENST00000367408.6 | n.3782G>A | non_coding_transcript_exon_variant | 18/18 | 1 | ||||
ASPM | ENST00000680265.1 | c.*61G>A | 3_prime_UTR_variant | 29/29 |
Frequencies
GnomAD3 genomes ? AF: 0.000171 AC: 26AN: 151974Hom.: 0 Cov.: 31
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GnomAD4 exome AF: 0.0000886 AC: 98AN: 1106480Hom.: 1 Cov.: 15 AF XY: 0.0000954 AC XY: 54AN XY: 566098
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GnomAD4 genome ? AF: 0.000184 AC: 28AN: 152092Hom.: 0 Cov.: 31 AF XY: 0.000188 AC XY: 14AN XY: 74352
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Microcephaly 5, primary, autosomal recessive Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Computational scores
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Name
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
RBP_binding_hub_radar
RBP_regulation_power_radar
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