rs144049904

Positions:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_018136.5(ASPM):c.1717C>T(p.Arg573Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00255 in 1,613,904 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0021 ( 1 hom., cov: 33)

Exomes 𝑓: 0.0026 ( 12 hom. )

Consequence

ASPM
NM_018136.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7

Conservation

PhyloP100: 1.81

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.008807689).

BP6

Variant 1-197142535-G-A is Benign according to our data. Variant chr1-197142535-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 157784.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=5, Uncertain_significance=1, Benign=2}.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00208 (317/152188) while in subpopulation AMR AF= 0.007 (107/15296). AF 95% confidence interval is 0.00592. There are 1 homozygotes in gnomad4. There are 150 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 12 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASPM	NM_018136.5 linkuse as main transcript	c.1717C>T	p.Arg573Trp	missense_variant	3/28	ENST00000367409.9
ASPM	NM_001206846.2 linkuse as main transcript	c.1717C>T	p.Arg573Trp	missense_variant	3/27

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ASPM	ENST00000367409.9 linkuse as main transcript	c.1717C>T	p.Arg573Trp	missense_variant	3/28	1	NM_018136.5	P1	Q8IZT6-1

Frequencies

GnomAD3 genomes

AF:

0.00208

AC:

317

AN:

152070

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000362

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00700

Gnomad ASJ

AF:

0.00202

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.000283

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.00259

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.00190

AC:

476

AN:

251182

Hom.:

AF XY:

0.00169

AC XY:

230

AN XY:

135796

show subpopulations

Gnomad AFR exome

AF:

0.000124

Gnomad AMR exome

AF:

0.00304

Gnomad ASJ exome

AF:

0.00665

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.000359

Gnomad FIN exome

AF:

0.000277

Gnomad NFE exome

AF:

0.00235

Gnomad OTH exome

AF:

0.00278

GnomAD4 exome

AF:

0.00260

AC:

3804

AN:

1461716

Hom.:

Cov.:

AF XY:

0.00250

AC XY:

1819

AN XY:

727158

show subpopulations

Gnomad4 AFR exome

AF:

0.000418

Gnomad4 AMR exome

AF:

0.00313

Gnomad4 ASJ exome

AF:

0.00566

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000336

Gnomad4 FIN exome

AF:

0.000262

Gnomad4 NFE exome

AF:

0.00287

Gnomad4 OTH exome

AF:

0.00339

GnomAD4 genome

AF:

0.00208

AC:

317

AN:

152188

Hom.:

Cov.:

AF XY:

0.00202

AC XY:

150

AN XY:

74408

show subpopulations

Gnomad4 AFR

AF:

0.000361

Gnomad4 AMR

AF:

0.00700

Gnomad4 ASJ

AF:

0.00202

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.000283

Gnomad4 NFE

AF:

0.00259

Gnomad4 OTH

AF:

0.00237

Alfa

AF:

0.00271

Hom.:

Bravo

AF:

0.00257

TwinsUK

AF:

0.00189

AC:

ALSPAC

AF:

0.00285

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00326

AC:

ExAC

AF:

0.00162

AC:

197

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.00224

EpiControl

AF:

0.00279

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:7

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Jun 15, 2017	- -
Likely benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Feb 26, 2016	- -
Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Oct 08, 2019	- -

not provided

Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Invitae	Jan 19, 2024	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 01, 2019	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jun 01, 2023	ASPM: BP4, BS2 -

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. -

ASPM-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

May 22, 2019

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.34

CADD

Benign

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.33

T;.

Eigen

Benign

0.070

Eigen_PC

Benign

-0.083

FATHMM_MKL

Benign

0.36

LIST_S2

Uncertain

0.96

D;D

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.0088

T;T

MetaSVM

Benign

-0.61

MutationAssessor

Uncertain

2.0

M;M

MutationTaster

Benign

0.89

N;N

PrimateAI

Benign

0.27

PROVEAN

Uncertain

-2.8

D;D

REVEL

Benign

0.12

Sift

Uncertain

0.0020

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;.

Vest4

0.23

MVP

0.63

ClinPred

0.027

GERP RS

3.2

Varity_R

0.12

gMVP

0.30

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over