18-33746213-T-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_030632.3(ASXL3):c.6365T>G(p.Phe2122Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000547 in 1,461,678 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F2122L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

ASXL3
NM_030632.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.47

Publications

0 publications found

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]

ASXL3 Gene-Disease associations (from GenCC):

severe feeding difficulties-failure to thrive-microcephaly due to ASXL3 deficiency syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Orphanet, G2P
syndromic intellectual disability
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen

ASXL3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2

High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ASXL3	NM_030632.3 link	c.6365T>G	p.Phe2122Cys	missense_variant	Exon 12 of 12	ENST00000269197.12	NP_085135.1	Q9C0F0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ASXL3	ENST00000269197.12 link	c.6365T>G	p.Phe2122Cys	missense_variant	Exon 12 of 12	5	NM_030632.3	ENSP00000269197.4	Q9C0F0-1
ASXL3	ENST00000696964.1 link	c.6368T>G	p.Phe2123Cys	missense_variant	Exon 13 of 13			ENSP00000513003.1	A0A8V8TKV8
ASXL3	ENST00000681521.1 link	c.6245T>G	p.Phe2082Cys	missense_variant	Exon 11 of 11			ENSP00000506037.1	A0A7P0TAE5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000401

AC:

AN:

249180

AF XY:

0.00000740

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000885

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461678

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727120

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

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:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53392

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000720

AC:

AN:

1111850

Other (OTH)

AF:

0.00

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 25, 2016

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.67

BayesDel_addAF

Uncertain

0.033

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.077

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.65

M_CAP

Benign

0.021

MetaRNN

Uncertain

0.56

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.0

PhyloP100

4.5

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-2.0

REVEL

Benign

0.21

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.020

Polyphen

1.0

Vest4

0.70

MutPred

0.14

Loss of methylation at K2118 (P = 0.073);

MVP

0.13

MPC

0.63

ClinPred

0.84

GERP RS

6.0

Varity_R

0.23

gMVP

0.51

Mutation Taster

=68/32

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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over