chr20-32436404-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_015338.6(ASXL1):c.3692C>T(p.Ser1231Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00588 in 1,613,826 control chromosomes in the GnomAD database, including 489 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S1231A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0092 ( 61 hom., cov: 32)

Exomes 𝑓: 0.0055 ( 428 hom. )

Consequence

ASXL1
NM_015338.6 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5O:1

Conservation

PhyloP100: 2.23

Publications

13 publications found

Variant links:

COSMIC-nc: COSV105900478

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=0.001635164).

BP6

Variant 20-32436404-C-T is Benign according to our data. Variant chr20-32436404-C-T is described in ClinVar as [Benign]. Clinvar id is 133586.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.0694 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ASXL1	NM_015338.6 link	c.3692C>T	p.Ser1231Phe	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.3692C>T	p.Ser1231Phe	missense_variant	Exon 13 of 13	5	NM_015338.6	ENSP00000364839.4		Q8IXJ9-1

Frequencies

GnomAD3 genomes

AF:

0.00920

AC:

1401

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00181

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0728

Gnomad ASJ

AF:

0.00288

Gnomad EAS

AF:

0.0200

Gnomad SAS

AF:

0.0128

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000235

Gnomad OTH

AF:

0.0100

GnomAD2 exomes

AF:

0.0203

AC:

5078

AN:

250264

AF XY:

0.0162

show subpopulations

Gnomad AFR exome

AF:

0.000988

Gnomad AMR exome

AF:

0.122

Gnomad ASJ exome

AF:

0.00259

Gnomad EAS exome

AF:

0.0199

Gnomad FIN exome

AF:

0.0000466

Gnomad NFE exome

AF:

0.000283

Gnomad OTH exome

AF:

0.0136

GnomAD4 exome

AF:

0.00553

AC:

8089

AN:

1461504

Hom.:

428

Cov.:

AF XY:

0.00506

AC XY:

3678

AN XY:

727060

show subpopulations

African (AFR)

AF:

0.00119

AC:

AN:

33480

American (AMR)

AF:

0.118

AC:

5262

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00295

AC:

AN:

26136

East Asian (EAS)

AF:

0.0345

AC:

1368

AN:

39700

South Asian (SAS)

AF:

0.00975

AC:

841

AN:

86254

European-Finnish (FIN)

AF:

0.000189

AC:

AN:

53046

Middle Eastern (MID)

AF:

0.00156

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000154

AC:

171

AN:

1112006

Other (OTH)

AF:

0.00515

AC:

311

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

681

1361

2042

2722

3403

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00921

AC:

1403

AN:

152322

Hom.:

Cov.:

AF XY:

0.0104

AC XY:

777

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.00180

AC:

AN:

41568

American (AMR)

AF:

0.0729

AC:

1116

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00288

AC:

AN:

3472

East Asian (EAS)

AF:

0.0201

AC:

104

AN:

5186

South Asian (SAS)

AF:

0.0126

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000235

AC:

AN:

68030

Other (OTH)

AF:

0.00993

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

131

196

262

327

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00522

Hom.:

Bravo

AF:

0.0151

ESP6500AA

AF:

0.00113

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.0154

AC:

1874

Asia WGS

AF:

0.0270

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000711

ClinVar

Significance: Benign

Submissions summary: Benign:5Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Aug 17, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1Other:1

Oct 06, 2015

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Sep 19, 2013

ITMI

Significance:not provided

Review Status:no classification provided

Collection Method:reference population

- -

Bohring-Opitz syndrome

Benign:1

Dec 05, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.52

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.18

T;T;T;.;T

Eigen

Benign

-0.25

Eigen_PC

Benign

-0.096

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.77

.;T;.;T;T

MetaRNN

Benign

0.0016

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

L;L;L;.;.

PhyloP100

2.2

PrimateAI

Benign

0.29

PROVEAN

Uncertain

-2.5

D;.;.;.;D

REVEL

Benign

0.024

Sift

Benign

0.073

T;.;.;.;T

Sift4G

Benign

0.075

T;T;T;.;T

Polyphen

0.030

B;B;B;.;.

Vest4

0.090

MPC

0.063

ClinPred

0.0090

GERP RS

3.6

Varity_R

0.095

gMVP

0.19

Mutation Taster

=100/0

polymorphism (auto)

(source)

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

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chr20-32436404-C-T

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