chr20-32433627-G-C

Position:

chr20-32433627-G-C

Variant summary

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

The NM_015338.6(ASXL1):c.1429G>C(p.Glu477Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000252 in 1,613,376 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0013 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00014 ( 2 hom. )

Consequence

ASXL1
NM_015338.6 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4O:1

Conservation

PhyloP100: 2.56

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=0.0050217807).

BP6

Variant 20-32433627-G-C is Benign according to our data. Variant chr20-32433627-G-C is described in ClinVar as [Benign]. Clinvar id is 133577.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr20-32433627-G-C is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00129 (196/152292) while in subpopulation AFR AF= 0.00433 (180/41568). AF 95% confidence interval is 0.00381. There are 1 homozygotes in gnomad4. There are 83 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 196 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ASXL1	NM_015338.6 linkuse as main transcript	c.1429G>C	p.Glu477Gln	missense_variant	12/13	ENST00000375687.10	NP_056153.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ASXL1	ENST00000375687.10 linkuse as main transcript	c.1429G>C	p.Glu477Gln	missense_variant	12/13	5	NM_015338.6	ENSP00000364839	P1	Q8IXJ9-1

Frequencies

GnomAD3 genomes

AF:

0.00129

AC:

196

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00434

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000916

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000334

AC:

AN:

251282

Hom.:

AF XY:

0.000199

AC XY:

AN XY:

135808

show subpopulations

Gnomad AFR exome

AF:

0.00418

Gnomad AMR exome

AF:

0.000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000144

AC:

211

AN:

1461084

Hom.:

Cov.:

AF XY:

0.000132

AC XY:

AN XY:

726686

show subpopulations

Gnomad4 AFR exome

AF:

0.00412

Gnomad4 AMR exome

AF:

0.000403

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000306

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.00129

AC:

196

AN:

152292

Hom.:

Cov.:

AF XY:

0.00111

AC XY:

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.00433

Gnomad4 AMR

AF:

0.000915

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000218

Hom.:

Bravo

AF:

0.00153

ESP6500AA

AF:

0.00386

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000404

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Benign

Submissions summary: Benign:4Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 06, 2024	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 25, 2019	- -

ASXL1-related disorder

Benign:1

Benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 07, 2019

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

Bohring-Opitz syndrome

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Dec 05, 2021

- -

not specified

Other:1

not provided, no classification provided

reference population

ITMI

Sep 19, 2013

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.089

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.26

T;T;T;.;T

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.18

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.66

.;T;.;T;T

M_CAP

Benign

0.0046

MetaRNN

Benign

0.0050

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.1

M;M;M;.;.

MutationTaster

Benign

0.71

D;D

PrimateAI

Benign

0.30

PROVEAN

Benign

-1.3

N;.;.;.;N

REVEL

Benign

0.077

Sift

Benign

0.045

D;.;.;.;D

Sift4G

Benign

0.20

T;T;T;.;T

Polyphen

0.93

P;P;P;.;.

Vest4

0.20

MVP

0.46

MPC

0.14

ClinPred

0.014

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.8

Varity_R

0.052

gMVP

0.21

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