Variant 16-89954368-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001242818.2(DEF8):c.116C>A(p.Thr39Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,230 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DEF8
NM_001242818.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.719

Variant links:

Genes affected

DEF8 (HGNC:25969): (differentially expressed in FDCP 8 homolog) Predicted to enable metal ion binding activity. Predicted to be involved in lysosome localization; positive regulation of bone resorption; and positive regulation of ruffle assembly. [provided by Alliance of Genome Resources, Apr 2022]

DEF8 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07941449).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DEF8	NM_001242818.2 linkuse as main transcript	c.116C>A	p.Thr39Asn	missense_variant	3/13	ENST00000563594.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DEF8	ENST00000563594.6 linkuse as main transcript	c.116C>A	p.Thr39Asn	missense_variant	3/13	1	NM_001242818.2	P1	Q6ZN54-5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249466

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135160

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 SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461230

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726916

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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

Nov 08, 2022

The c.299C>A (p.T100N) alteration is located in exon 3 (coding exon 2) of the DEF8 gene. This alteration results from a C to A substitution at nucleotide position 299, causing the threonine (T) at amino acid position 100 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

Benign

0.079

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.62

CADD

Benign

2.8

DANN

Benign

0.88

Eigen

Benign

-0.77

Eigen_PC

Benign

-0.79

FATHMM_MKL

Benign

0.21

M_CAP

Benign

0.012

MetaRNN

Benign

0.079

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

MetaSVM

Benign

-1.0

MutationTaster

Benign

0.78

D;N;N;N;N;N;N

PrimateAI

Benign

0.37

PROVEAN

Benign

-0.98

N;N;.;.;N;N;N;N;N;N;N;N;N;N;N;N;D

Sift

Benign

0.056

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

Sift4G

Benign

0.45

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

Polyphen

0.020

B;.;B;B;.;.;.;.;B;B;.;.;B;.;B;.;.

Vest4

0.14

MutPred

0.16

.;.;.;.;.;.;.;.;Loss of phosphorylation at T100 (P = 0.0017);.;.;.;.;.;.;.;.;

MVP

0.048

MPC

0.061

ClinPred

0.081

GERP RS

3.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.10

gMVP

0.081

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