rs41302133

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_018136.5(ASPM):​c.8068C>T​(p.Arg2690Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00037 in 1,612,220 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00049 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00036 ( 1 hom. )

Consequence

ASPM
NM_018136.5 missense

Scores

3
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 0.466

Publications

8 publications found
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]
ASPM Gene-Disease associations (from GenCC):
  • microcephaly 5, primary, autosomal recessive
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • autosomal recessive primary microcephaly
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.021178871).
BP6
Variant 1-197101183-G-A is Benign according to our data. Variant chr1-197101183-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 194877.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018136.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ASPM
NM_018136.5
MANE Select
c.8068C>Tp.Arg2690Trp
missense
Exon 18 of 28NP_060606.3
ASPM
NM_001206846.2
c.4066-5019C>T
intron
N/ANP_001193775.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ASPM
ENST00000367409.9
TSL:1 MANE Select
c.8068C>Tp.Arg2690Trp
missense
Exon 18 of 28ENSP00000356379.4
ASPM
ENST00000294732.11
TSL:1
c.4066-5019C>T
intron
N/AENSP00000294732.7
ASPM
ENST00000367408.6
TSL:1
n.2108-5019C>T
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.000475
AC:
72
AN:
151630
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00106
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000264
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:
0.000354
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000308
AC:
77
AN:
249686
AF XY:
0.000245
show subpopulations
Gnomad AFR exome
AF:
0.000925
Gnomad AMR exome
AF:
0.000320
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000463
Gnomad NFE exome
AF:
0.000427
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000357
AC:
521
AN:
1460472
Hom.:
1
Cov.:
31
AF XY:
0.000326
AC XY:
237
AN XY:
726556
show subpopulations
African (AFR)
AF:
0.000958
AC:
32
AN:
33408
American (AMR)
AF:
0.000359
AC:
16
AN:
44544
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26078
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39620
South Asian (SAS)
AF:
0.0000696
AC:
6
AN:
86220
European-Finnish (FIN)
AF:
0.0000188
AC:
1
AN:
53326
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5746
European-Non Finnish (NFE)
AF:
0.000401
AC:
446
AN:
1111246
Other (OTH)
AF:
0.000299
AC:
18
AN:
60284
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
33
66
98
131
164
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000494
AC:
75
AN:
151748
Hom.:
0
Cov.:
32
AF XY:
0.000405
AC XY:
30
AN XY:
74152
show subpopulations
African (AFR)
AF:
0.00113
AC:
47
AN:
41454
American (AMR)
AF:
0.000264
AC:
4
AN:
15176
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5142
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10582
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000354
AC:
24
AN:
67800
Other (OTH)
AF:
0.00
AC:
0
AN:
2106
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.519
Heterozygous variant carriers
0
5
10
14
19
24
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000421
Hom.:
0
Bravo
AF:
0.000491
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000313
AC:
38
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000273
EpiControl
AF:
0.000356

ClinVar

ClinVar submissions as Germline
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
1
not provided (3)
-
2
-
Microcephaly 5, primary, autosomal recessive (2)
-
-
1
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.097
T
Eigen
Benign
-0.28
Eigen_PC
Benign
-0.29
FATHMM_MKL
Benign
0.23
N
LIST_S2
Benign
0.66
T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.021
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
L
PhyloP100
0.47
PrimateAI
Benign
0.22
T
PROVEAN
Benign
-2.1
N
REVEL
Benign
0.079
Sift
Uncertain
0.022
D
Sift4G
Uncertain
0.049
D
Polyphen
0.29
B
Vest4
0.27
MVP
0.25
ClinPred
0.030
T
GERP RS
3.3
Varity_R
0.14
gMVP
0.012
Mutation Taster
=86/14
polymorphism

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

Other links and lift over

dbSNP: rs41302133; hg19: chr1-197070313; API