Variant chr17-39792801-A-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_012481.5(IKZF3):c.296T>A(p.Ile99Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

IKZF3
NM_012481.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.05

Variant links:

Genes affected

IKZF3 (HGNC:13178): (IKAROS family zinc finger 3) This gene encodes a member of the Ikaros family of zinc-finger proteins. Three members of this protein family (Ikaros, Aiolos and Helios) are hematopoietic-specific transcription factors involved in the regulation of lymphocyte development. This gene product is a transcription factor that is important in the regulation of B lymphocyte proliferation and differentiation. Both Ikaros and Aiolos can participate in chromatin remodeling. Regulation of gene expression in B lymphocytes by Aiolos is complex as it appears to require the sequential formation of Ikaros homodimers, Ikaros/Aiolos heterodimers, and Aiolos homodimers. Several alternative transcripts encoding different isoforms have been described, as well as some non-protein coding variants. [provided by RefSeq, Apr 2012]

IKZF3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.33249974).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IKZF3	NM_012481.5 linkuse as main transcript	c.296T>A	p.Ile99Asn	missense_variant	4/8	ENST00000346872.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IKZF3	ENST00000346872.8 linkuse as main transcript	c.296T>A	p.Ile99Asn	missense_variant	4/8	1	NM_012481.5	P1	Q9UKT9-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251232

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135770

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461852

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727222

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000189

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 23, 2023

The c.296T>A (p.I99N) alteration is located in exon 4 (coding exon 4) of the IKZF3 gene. This alteration results from a T to A substitution at nucleotide position 296, causing the isoleucine (I) at amino acid position 99 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.67

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.40

CADD

Uncertain

DANN

Uncertain

0.99

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.94

D;D;D;D;D;D;D;D;D

M_CAP

Benign

0.018

MetaRNN

Benign

0.33

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.68

MutationAssessor

Benign

0.97

L;.;L;.;L;L;L;L;L

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D;D;D;D;D;D

PrimateAI

Benign

0.46

PROVEAN

Benign

-1.3

N;.;N;N;N;N;N;N;.

REVEL

Benign

0.12

Sift

Benign

0.42

T;.;T;T;T;T;T;D;.

Sift4G

Benign

0.50

T;T;D;T;T;T;T;T;T

Polyphen

0.82

P;D;P;P;P;D;B;P;D

Vest4

0.65

MutPred

0.49

Gain of disorder (P = 0.0133);.;Gain of disorder (P = 0.0133);.;Gain of disorder (P = 0.0133);Gain of disorder (P = 0.0133);Gain of disorder (P = 0.0133);Gain of disorder (P = 0.0133);Gain of disorder (P = 0.0133);

MVP

0.10

MPC

1.6

ClinPred

0.92

GERP RS

6.0

Varity_R

0.33

gMVP

0.64

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