rs143805893

Positions:

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018136.5(ASPM):c.3566C>T(p.Ser1189Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000537 in 1,613,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 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 0.00039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00055 ( 0 hom. )

Consequence

ASPM
NM_018136.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:1

Conservation

PhyloP100: 1.75

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 Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.032462925).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ASPM	NM_018136.5 linkuse as main transcript	c.3566C>T	p.Ser1189Phe	missense_variant	14/28	ENST00000367409.9	NP_060606.3
ASPM	NM_001206846.2 linkuse as main transcript	c.3566C>T	p.Ser1189Phe	missense_variant	14/27		NP_001193775.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ASPM	ENST00000367409.9 linkuse as main transcript	c.3566C>T	p.Ser1189Phe	missense_variant	14/28	1	NM_018136.5	ENSP00000356379	P1	Q8IZT6-1

Frequencies

GnomAD3 genomes

AF:

0.000394

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.000676

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000307

AC:

AN:

250940

Hom.:

AF XY:

0.000383

AC XY:

AN XY:

135614

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000348

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000538

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000551

AC:

806

AN:

1461540

Hom.:

Cov.:

AF XY:

0.000552

AC XY:

401

AN XY:

727086

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.000425

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000672

Gnomad4 OTH exome

AF:

0.000447

GnomAD4 genome

AF:

0.000394

AC:

AN:

152278

Hom.:

Cov.:

AF XY:

0.000309

AC XY:

AN XY:

74456

show subpopulations

Gnomad4 AFR

AF:

0.000216

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000676

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.000499

Hom.:

Bravo

AF:

0.000419

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000814

AC:

ExAC

AF:

0.000288

AC:

EpiCase

AF:

0.000709

EpiControl

AF:

0.000711

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jul 12, 2022	This sequence change replaces serine, which is neutral and polar, with phenylalanine, which is neutral and non-polar, at codon 1189 of the ASPM protein (p.Ser1189Phe). This variant is present in population databases (rs143805893, gnomAD 0.05%). This variant has not been reported in the literature in individuals affected with ASPM-related conditions. ClinVar contains an entry for this variant (Variation ID: 294639). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The phenylalanine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jul 03, 2019	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Athena Diagnostics	May 17, 2019	- -

Microcephaly 5, primary, autosomal recessive

Uncertain:2

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. -
Uncertain significance, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Oct 31, 2018	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Sep 22, 2016

- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 03, 2023

The c.3566C>T (p.S1189F) alteration is located in exon 14 (coding exon 14) of the ASPM gene. This alteration results from a C to T substitution at nucleotide position 3566, causing the serine (S) at amino acid position 1189 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.094

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Uncertain

0.42

T;.;T

Eigen

Benign

-0.89

Eigen_PC

Benign

-0.86

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.73

T;T;T

M_CAP

Benign

0.0084

MetaRNN

Benign

0.032

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

2.0

M;M;.

MutationTaster

Benign

0.50

D;N;N

PrimateAI

Benign

0.30

PROVEAN

Benign

-1.3

N;N;N

REVEL

Benign

0.12

Sift

Benign

0.11

T;T;T

Sift4G

Benign

0.091

T;T;T

Polyphen

0.62

P;.;.

Vest4

0.096

MVP

0.25

ClinPred

0.017

GERP RS

-5.7

Varity_R

0.034

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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