18-33578991-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_030632.3(ASXL3):​c.54+306C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0553 in 174,394 control chromosomes in the GnomAD database, including 339 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.053 ( 278 hom., cov: 32)
Exomes 𝑓: 0.073 ( 61 hom. )

Consequence

ASXL3
NM_030632.3 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.840
Variant links:
Genes affected
ASXL3 (HGNC:29357): (ASXL transcriptional regulator 3) This gene encodes a protein containing a plant homeodomain (PHD) zinc finger domain that plays a role in the regulation of gene transcription. The encoded protein has been shown to negatively regulate lipogenesis by binding to and inhibiting the transcriptional activity of two nuclear hormone receptors, oxysterols receptor LXR-alpha (LXRalpha) and thyroid hormone receptor beta (TRbeta). The encoded protein may also inhibit histone deubiquitination. Mutations in this gene have been identified in human patients with Bainbridge-Ropers syndrome, which is characterized by feeding difficulties, developmental delay and other features. [provided by RefSeq, May 2017]

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 (BayesDel_noAF=-0.68).
BP6
Variant 18-33578991-C-T is Benign according to our data. Variant chr18-33578991-C-T is described in ClinVar as [Benign]. Clinvar id is 1225338.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.069 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASXL3NM_030632.3 linkuse as main transcriptc.54+306C>T intron_variant ENST00000269197.12
ASXL3XM_005258356.2 linkuse as main transcriptc.54+306C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASXL3ENST00000269197.12 linkuse as main transcriptc.54+306C>T intron_variant 5 NM_030632.3 P4Q9C0F0-1

Frequencies

GnomAD3 genomes
AF:
0.0527
AC:
8026
AN:
152182
Hom.:
279
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0142
Gnomad AMI
AF:
0.0417
Gnomad AMR
AF:
0.0693
Gnomad ASJ
AF:
0.0908
Gnomad EAS
AF:
0.0705
Gnomad SAS
AF:
0.0745
Gnomad FIN
AF:
0.0517
Gnomad MID
AF:
0.0411
Gnomad NFE
AF:
0.0677
Gnomad OTH
AF:
0.0659
GnomAD4 exome
AF:
0.0731
AC:
1615
AN:
22094
Hom.:
61
Cov.:
0
AF XY:
0.0739
AC XY:
909
AN XY:
12308
show subpopulations
Gnomad4 AFR exome
AF:
0.00830
Gnomad4 AMR exome
AF:
0.0728
Gnomad4 ASJ exome
AF:
0.134
Gnomad4 EAS exome
AF:
0.119
Gnomad4 SAS exome
AF:
0.0885
Gnomad4 FIN exome
AF:
0.0537
Gnomad4 NFE exome
AF:
0.0736
Gnomad4 OTH exome
AF:
0.0649
GnomAD4 genome
AF:
0.0527
AC:
8023
AN:
152300
Hom.:
278
Cov.:
32
AF XY:
0.0528
AC XY:
3931
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.0141
Gnomad4 AMR
AF:
0.0692
Gnomad4 ASJ
AF:
0.0908
Gnomad4 EAS
AF:
0.0699
Gnomad4 SAS
AF:
0.0754
Gnomad4 FIN
AF:
0.0517
Gnomad4 NFE
AF:
0.0676
Gnomad4 OTH
AF:
0.0652
Alfa
AF:
0.0445
Hom.:
55
Bravo
AF:
0.0529
Asia WGS
AF:
0.0680
AC:
240
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxAug 10, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.68
CADD
Benign
15
DANN
Benign
0.89

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs116955773; hg19: chr18-31158955; API