1-197092031-C-T

Variant summary

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

The NM_018136.5(ASPM):​c.9320G>A​(p.Arg3107Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,459,728 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

ASPM
NM_018136.5 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.05
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 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 Protein UniProt
ASPMNM_018136.5 linkuse as main transcriptc.9320G>A p.Arg3107Gln missense_variant 22/28 ENST00000367409.9 NP_060606.3
ASPMNM_001206846.2 linkuse as main transcriptc.4565G>A p.Arg1522Gln missense_variant 21/27 NP_001193775.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ASPMENST00000367409.9 linkuse as main transcriptc.9320G>A p.Arg3107Gln missense_variant 22/281 NM_018136.5 ENSP00000356379 P1Q8IZT6-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000799
AC:
2
AN:
250368
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135274
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000886
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000116
AC:
17
AN:
1459728
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
726242
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.0000332
GnomAD4 genome
Cov.:
32

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 submitterclinical testingGenetic Services Laboratory, University of ChicagoFeb 08, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.040
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.11
T;.;T
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.33
FATHMM_MKL
Benign
0.22
N
LIST_S2
Benign
0.84
T;T;T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.27
T;T;T
MetaSVM
Benign
-0.81
T
MutationAssessor
Benign
1.7
L;.;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-2.1
N;N;N
REVEL
Benign
0.17
Sift
Uncertain
0.010
D;D;D
Sift4G
Uncertain
0.0070
D;T;T
Polyphen
0.90
P;.;.
Vest4
0.28
MutPred
0.51
Loss of MoRF binding (P = 0.0195);.;.;
MVP
0.51
ClinPred
0.53
D
GERP RS
4.4
Varity_R
0.10
gMVP
0.088

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.22
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.22
Position offset: -21

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: rs587783290; hg19: chr1-197061161; API