chr20-32435107-G-T

Position:

chr20-32435107-G-T

Variant summary

Our verdict is Benign. Variant got -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. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

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

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=0.0031474829).

BP6

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

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 male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 796 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASXL1	NM_015338.6 linkuse as main transcript	c.2395G>T	p.Asp799Tyr	missense_variant	13/13	ENST00000375687.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ASXL1	ENST00000375687.10 linkuse as main transcript	c.2395G>T	p.Asp799Tyr	missense_variant	13/13	5	NM_015338.6	P1	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

GnomAD3 exomes

AF:

0.00132

AC:

329

AN:

250002

Hom.:

AF XY:

0.000880

AC XY:

119

AN XY:

135208

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 SAS exome

AF:

0.0000327

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

Gnomad4 AFR exome

AF:

0.0198

Gnomad4 AMR exome

AF:

0.000805

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000162

Gnomad4 OTH exome

AF:

0.00124

GnomAD4 genome

AF:

0.00523

AC:

796

AN:

152296

Hom.:

Cov.:

AF XY:

0.00479

AC XY:

357

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.0185

Gnomad4 AMR

AF:

0.000980

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00379

Alfa

AF:

0.00107

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

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 29, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics	Mar 31, 2017	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 18, 2019	- -

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

0.13

BayesDel_addAF

Benign

-0.61

BayesDel_noAF

Benign

-0.63

CADD

Benign

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;.;.

MutationTaster

Benign

1.0

N;N

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

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