20-32435107-G-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_015338.6(ASXL1):c.2395G>T(p.Asp799Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000989 in 1,613,990 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D799G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0052 ( 5 hom., cov: 32)

Exomes 𝑓: 0.00055 ( 4 hom. )

Consequence

ASXL1
NM_015338.6 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 1.01

Publications

7 publications found

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 Gene-Disease associations (from GenCC):

Bohring-Opitz syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Illumina, ClinGen, Laboratory for Molecular Medicine, G2P, Orphanet

ASXL1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0031474829).

BP6

Variant 20-32435107-G-T is Benign according to our data. Variant chr20-32435107-G-T is described in ClinVar as Benign. ClinVar VariationId is 133594.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00523 (796/152296) while in subpopulation AFR AF = 0.0185 (767/41542). AF 95% confidence interval is 0.0174. There are 5 homozygotes in GnomAd4. There are 357 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 796 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ASXL1	NM_015338.6 link	c.2395G>T	p.Asp799Tyr	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.2395G>T	p.Asp799Tyr	missense_variant	Exon 13 of 13	5	NM_015338.6	ENSP00000364839.4		Q8IXJ9-1

Frequencies

GnomAD3 genomes

AF:

0.00522

AC:

795

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0185

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000981

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00949

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00383

GnomAD2 exomes

AF:

0.00132

AC:

329

AN:

250002

AF XY:

0.000880

show subpopulations

Gnomad AFR exome

AF:

0.0188

Gnomad AMR exome

AF:

0.000550

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000444

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000548

AC:

801

AN:

1461694

Hom.:

Cov.:

AF XY:

0.000437

AC XY:

318

AN XY:

727128

show subpopulations

African (AFR)

AF:

0.0198

AC:

664

AN:

33478

American (AMR)

AF:

0.000805

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000464

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53240

Middle Eastern (MID)

AF:

0.000694

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.0000162

AC:

AN:

1112002

Other (OTH)

AF:

0.00124

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

115

173

230

288

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

110

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00523

AC:

796

AN:

152296

Hom.:

Cov.:

AF XY:

0.00479

AC XY:

357

AN XY:

74464

show subpopulations

African (AFR)

AF:

0.0185

AC:

767

AN:

41542

American (AMR)

AF:

0.000980

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68030

Other (OTH)

AF:

0.00379

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

130

173

216

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00223

Hom.:

Bravo

AF:

0.00624

ESP6500AA

AF:

0.0182

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.00165

AC:

200

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:4Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 31, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 18, 2019

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

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

0.13

BayesDel_addAF

Benign

-0.61

BayesDel_noAF

Benign

-0.63

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.078

T;T;T;.;T

Eigen

Benign

-0.44

Eigen_PC

Benign

-0.53

FATHMM_MKL

Benign

0.20

LIST_S2

Benign

0.79

.;T;.;T;T

MetaRNN

Benign

0.0031

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.8

L;L;L;.;.

PhyloP100

1.0

PrimateAI

Benign

0.26

PROVEAN

Benign

-1.6

N;.;.;.;N

REVEL

Benign

0.037

Sift

Uncertain

0.0030

D;.;.;.;D

Sift4G

Uncertain

0.051

T;T;T;.;T

Polyphen

0.79

P;P;P;.;.

Vest4

0.20

MVP

0.38

MPC

0.27

ClinPred

0.012

GERP RS

2.0

RBP_binding_hub_radar

0.97

RBP_regulation_power_radar

2.1

Varity_R

0.043

gMVP

0.18

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over