chr1-197104755-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_018136.5(ASPM):​c.4496G>A​(p.Arg1499Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000131 in 1,600,178 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1499L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

ASPM
NM_018136.5 missense

Scores

12
4
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.20
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.877

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ASPMNM_018136.5 linkuse as main transcriptc.4496G>A p.Arg1499Gln missense_variant 18/28 ENST00000367409.9 NP_060606.3 Q8IZT6-1B3KWI2
ASPMNM_001206846.2 linkuse as main transcriptc.4066-8591G>A intron_variant NP_001193775.1 Q8IZT6-2B3KWI2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ASPMENST00000367409.9 linkuse as main transcriptc.4496G>A p.Arg1499Gln missense_variant 18/281 NM_018136.5 ENSP00000356379.4 Q8IZT6-1

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
151794
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000967
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:
0.0000147
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000290
AC:
7
AN:
241160
Hom.:
0
AF XY:
0.0000230
AC XY:
3
AN XY:
130314
show subpopulations
Gnomad AFR exome
AF:
0.000189
Gnomad AMR exome
AF:
0.0000308
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000710
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000904
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000104
AC:
15
AN:
1448384
Hom.:
0
Cov.:
38
AF XY:
0.0000111
AC XY:
8
AN XY:
719470
show subpopulations
Gnomad4 AFR exome
AF:
0.000185
Gnomad4 AMR exome
AF:
0.0000235
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000362
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000361
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000395
AC:
6
AN:
151794
Hom.:
0
Cov.:
32
AF XY:
0.0000405
AC XY:
3
AN XY:
74120
show subpopulations
Gnomad4 AFR
AF:
0.0000967
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:
0.0000147
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.00000497
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000547
EpiControl
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Pathogenic
0.36
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.62
D
Eigen
Pathogenic
0.95
Eigen_PC
Pathogenic
0.85
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.88
D
MetaSVM
Pathogenic
0.96
D
MutationAssessor
Pathogenic
3.8
H
PrimateAI
Benign
0.33
T
PROVEAN
Uncertain
-2.5
N
REVEL
Pathogenic
0.77
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.76
MutPred
0.70
Loss of catalytic residue at R1499 (P = 0.0539);
MVP
0.90
ClinPred
0.98
D
GERP RS
5.5
Varity_R
0.57
gMVP
0.40

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: rs140119882; hg19: chr1-197073885; API