1-197128512-A-C

Position:

chr1-197128512-A-C

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_018136.5(ASPM):c.2914T>G(p.Leu972Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000961 in 1,613,682 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. L972L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000099 ( 1 hom. )

Consequence

ASPM
NM_018136.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 1.92

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 -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.054499865).

BP6

Variant 1-197128512-A-C is Benign according to our data. Variant chr1-197128512-A-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 157798.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1, Likely_benign=3}.

BS1

Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.0000992 (145/1461372) while in subpopulation AMR AF= 0.00322 (144/44722). AF 95% confidence interval is 0.00279. There are 1 homozygotes in gnomad4_exome. There are 60 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASPM	NM_018136.5 linkuse as main transcript	c.2914T>G	p.Leu972Val	missense_variant	10/28	ENST00000367409.9
ASPM	NM_001206846.2 linkuse as main transcript	c.2914T>G	p.Leu972Val	missense_variant	10/27

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ASPM	ENST00000367409.9 linkuse as main transcript	c.2914T>G	p.Leu972Val	missense_variant	10/28	1	NM_018136.5	P1	Q8IZT6-1

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.00

Gnomad OTH

AF:

0.00143

GnomAD3 exomes

AF:

0.000533

AC:

134

AN:

251442

Hom.:

AF XY:

0.000449

AC XY:

AN XY:

135890

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00376

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:

0.00

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.0000992

AC:

145

AN:

1461372

Hom.:

Cov.:

AF XY:

0.0000825

AC XY:

AN XY:

727056

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00322

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:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152310

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000458

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.0000445

Hom.:

Bravo

AF:

0.000298

ExAC

AF:

0.000552

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Invitae	Jan 02, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 08, 2021	- -

Microcephaly 5, primary, autosomal recessive

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Feb 08, 2013

- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Feb 26, 2016

- -

ASPM-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 22, 2020

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

Uncertain

0.38

BayesDel_addAF

Benign

-0.081

BayesDel_noAF

Uncertain

0.11

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.54

D;.;T

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.66

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.86

D;D;D

M_CAP

Uncertain

0.16

MetaRNN

Benign

0.054

T;T;T

MetaSVM

Uncertain

0.54

MutationAssessor

Pathogenic

3.2

M;M;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-2.6

D;N;N

REVEL

Pathogenic

0.80

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.76

MutPred

0.59

Loss of stability (P = 0.1762);Loss of stability (P = 0.1762);.;

MVP

0.93

ClinPred

0.18

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.3

Varity_R

0.58

gMVP

0.60

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