chr20-32358788-CAGA-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP3BP6_Very_StrongBS2_Supporting

The NM_015338.6(ASXL1):​c.25_27del​(p.Lys9del) variant causes a inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000179 in 1,460,560 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (β˜…β˜…).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00019 ( 0 hom. )

Consequence

ASXL1
NM_015338.6 inframe_deletion

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 2.55
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP3
Nonframeshift variant in repetitive region in NM_015338.6
BP6
Variant 20-32358788-CAGA-C is Benign according to our data. Variant chr20-32358788-CAGA-C is described in ClinVar as [Likely_benign]. Clinvar id is 1272899.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 10 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASXL1NM_015338.6 linkuse as main transcriptc.25_27del p.Lys9del inframe_deletion 1/13 ENST00000375687.10
ASXL1NM_001164603.1 linkuse as main transcriptc.25_27del p.Lys9del inframe_deletion 1/5
ASXL1XM_006723727.4 linkuse as main transcriptc.25_27del p.Lys9del inframe_deletion 1/12
ASXL1XM_047439945.1 linkuse as main transcriptc.25_27del p.Lys9del inframe_deletion 1/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASXL1ENST00000375687.10 linkuse as main transcriptc.25_27del p.Lys9del inframe_deletion 1/135 NM_015338.6 P1Q8IXJ9-1

Frequencies

GnomAD3 genomes
AF:
0.0000665
AC:
10
AN:
150372
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000487
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000661
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000997
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000889
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000418
AC:
47
AN:
112320
Hom.:
0
AF XY:
0.000453
AC XY:
28
AN XY:
61800
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000146
Gnomad ASJ exome
AF:
0.000139
Gnomad EAS exome
AF:
0.00155
Gnomad SAS exome
AF:
0.000519
Gnomad FIN exome
AF:
0.000133
Gnomad NFE exome
AF:
0.000525
Gnomad OTH exome
AF:
0.000317
GnomAD4 exome
AF:
0.000192
AC:
252
AN:
1310082
Hom.:
0
AF XY:
0.000194
AC XY:
125
AN XY:
645518
show subpopulations
Gnomad4 AFR exome
AF:
0.000267
Gnomad4 AMR exome
AF:
0.000292
Gnomad4 ASJ exome
AF:
0.0000902
Gnomad4 EAS exome
AF:
0.000851
Gnomad4 SAS exome
AF:
0.000226
Gnomad4 FIN exome
AF:
0.000147
Gnomad4 NFE exome
AF:
0.000174
Gnomad4 OTH exome
AF:
0.000152
GnomAD4 genome
AF:
0.0000665
AC:
10
AN:
150478
Hom.:
0
Cov.:
31
AF XY:
0.0000680
AC XY:
5
AN XY:
73566
show subpopulations
Gnomad4 AFR
AF:
0.0000486
Gnomad4 AMR
AF:
0.0000661
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000997
Gnomad4 NFE
AF:
0.0000889
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2024ASXL1: BP3 -
Benign, criteria provided, single submitterclinical testingGeneDxDec 04, 2020- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 23, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs752094508; hg19: chr20-30946591; API