20-32436457-A-G

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_015338.6(ASXL1):c.3745A>G(p.Met1249Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00218 in 1,614,152 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0022 ( 6 hom. )

Consequence

ASXL1
NM_015338.6 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7O:1

Conservation

PhyloP100: -1.15

Variant links:

Genes affected

ASXL1 (HGNC:18318): (ASXL transcriptional regulator 1) This gene is similar to the Drosophila additional sex combs gene, which encodes a chromatin-binding protein required for normal determination of segment identity in the developing embryo. The protein is a member of the Polycomb group of proteins, which are necessary for the maintenance of stable repression of homeotic and other loci. The protein is thought to disrupt chromatin in localized areas, enhancing transcription of certain genes while repressing the transcription of other genes. The protein encoded by this gene functions as a ligand-dependent co-activator for retinoic acid receptor in cooperation with nuclear receptor coactivator 1. Mutations in this gene are associated with myelodysplastic syndromes and chronic myelomonocytic leukemia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

ASXL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.002648145).

BP6

Variant 20-32436457-A-G is Benign according to our data. Variant chr20-32436457-A-G is described in ClinVar as [Benign]. Clinvar id is 133580.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr20-32436457-A-G is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00198 (302/152358) while in subpopulation NFE AF= 0.00238 (162/68032). AF 95% confidence interval is 0.00208. There are 0 homozygotes in gnomad4. There are 160 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 302 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ASXL1	NM_015338.6 link	c.3745A>G	p.Met1249Val	missense_variant	Exon 13 of 13	ENST00000375687.10	NP_056153.2	Q8IXJ9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ASXL1	ENST00000375687.10 link	c.3745A>G	p.Met1249Val	missense_variant	Exon 13 of 13	5	NM_015338.6	ENSP00000364839.4		Q8IXJ9-1

Frequencies

GnomAD3 genomes

AF:

0.00198

AC:

302

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000531

Gnomad AMI

AF:

0.00548

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00104

Gnomad FIN

AF:

0.00884

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00238

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.00220

AC:

553

AN:

251180

Hom.:

AF XY:

0.00219

AC XY:

297

AN XY:

135758

show subpopulations

Gnomad AFR exome

AF:

0.000492

Gnomad AMR exome

AF:

0.000376

Gnomad ASJ exome

AF:

0.0000994

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000849

Gnomad FIN exome

AF:

0.0105

Gnomad NFE exome

AF:

0.00224

Gnomad OTH exome

AF:

0.00408

GnomAD4 exome

AF:

0.00220

AC:

3216

AN:

1461794

Hom.:

Cov.:

AF XY:

0.00221

AC XY:

1606

AN XY:

727204

show subpopulations

Gnomad4 AFR exome

AF:

0.000657

Gnomad4 AMR exome

AF:

0.000470

Gnomad4 ASJ exome

AF:

0.0000765

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000788

Gnomad4 FIN exome

AF:

0.0107

Gnomad4 NFE exome

AF:

0.00218

Gnomad4 OTH exome

AF:

0.00169

GnomAD4 genome

AF:

0.00198

AC:

302

AN:

152358

Hom.:

Cov.:

AF XY:

0.00215

AC XY:

160

AN XY:

74516

show subpopulations

Gnomad4 AFR

AF:

0.000529

Gnomad4 AMR

AF:

0.000588

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00884

Gnomad4 NFE

AF:

0.00238

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00192

Hom.:

Bravo

AF:

0.00122

TwinsUK

AF:

0.00162

AC:

ALSPAC

AF:

0.00234

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00174

AC:

ExAC

AF:

0.00198

AC:

241

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:7Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:6

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Oct 26, 2021

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 24728327, 27581359) -

Nov 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

ASXL1: BP4, BS1, BS2 -

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 22, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Bohring-Opitz syndrome

Benign:1

Dec 05, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Other:1

Sep 19, 2013

ITMI

Significance: not provided

Review Status: no classification provided

Collection Method: reference population

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.061

BayesDel_addAF

Benign

-0.76

BayesDel_noAF

Benign

-0.86

CADD

Benign

0.0050

DANN

Benign

0.37

DEOGEN2

Benign

0.019

T;T;T;.;T

Eigen

Benign

-2.0

Eigen_PC

Benign

-2.1

FATHMM_MKL

Benign

0.045

LIST_S2

Benign

0.38

.;T;.;T;T

M_CAP

Benign

0.0021

MetaRNN

Benign

0.0026

T;T;T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

-0.69

N;N;N;.;.

PrimateAI

Benign

0.23

PROVEAN

Benign

0.070

N;.;.;.;N

REVEL

Benign

0.0030

Sift

Benign

0.50

T;.;.;.;T

Sift4G

Benign

0.48

T;T;T;.;T

Polyphen

0.0

B;B;B;.;.

Vest4

0.0070

MVP

0.061

MPC

0.058

ClinPred

0.0016

GERP RS

-8.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

0.98

Varity_R

0.038

gMVP

0.15

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