Genetic Variant ZNF420:p.Thr274Ile (chr19-37127812-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_144689.5(ZNF420):c.821C>T(p.Thr274Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000118 in 1,613,852 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: 𝑓 0.00055 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000074 ( 0 hom. )

Consequence

ZNF420
NM_144689.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.213

Variant links:

Genes affected

ZNF420 (HGNC:20649): (zinc finger protein 420) The protein encoded by this gene is a KRAB-type zinc finger protein that negatively-regulates p53-mediated apoptosis. Under stress conditions, the encoded protein is phosphorylated by ATM and dissociates from p53, which activates p53 and initiates apoptosis. [provided by RefSeq, Jul 2016]

ZNF420 links:

ENSG00000267360 (HGNC:):

ENSG00000267360 links:

ZNF585A (HGNC:26305): (zinc finger protein 585A) Predicted to enable DNA-binding transcription activator activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ZNF585A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.024689615).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZNF420	NM_144689.5 link	c.821C>T	p.Thr274Ile	missense_variant	Exon 5 of 5	ENST00000337995.4	NP_653290.2	Q8TAQ5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZNF420	ENST00000337995.4 link	c.821C>T	p.Thr274Ile	missense_variant	Exon 5 of 5	1	NM_144689.5	ENSP00000338770.2		Q8TAQ5-1
ENSG00000267360	ENST00000588873.1 link	c.253+28053G>A		intron_variant	Intron 3 of 3	5		ENSP00000465212.1		K7EJK4

Frequencies

GnomAD3 genomes

AF:

0.000546

AC:

AN:

151986

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00196

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000104

AC:

AN:

250712

Hom.:

AF XY:

0.0000664

AC XY:

AN XY:

135644

show subpopulations

Gnomad AFR exome

AF:

0.00162

Gnomad AMR exome

AF:

0.00

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:

0.0000739

AC:

108

AN:

1461748

Hom.:

Cov.:

AF XY:

0.0000591

AC XY:

AN XY:

727168

show subpopulations

Gnomad4 AFR exome

AF:

0.00254

Gnomad4 AMR exome

AF:

0.0000224

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:

0.0000144

Gnomad4 OTH exome

AF:

0.0000994

GnomAD4 genome

AF:

0.000546

AC:

AN:

152104

Hom.:

Cov.:

AF XY:

0.000538

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00195

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000425

Hom.:

Bravo

AF:

0.000616

ESP6500AA

AF:

0.00136

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000124

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.821C>T (p.T274I) alteration is located in exon 5 (coding exon 3) of the ZNF420 gene. This alteration results from a C to T substitution at nucleotide position 821, causing the threonine (T) at amino acid position 274 to be replaced by an isoleucine (I). 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

Uncertain

0.36

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.48

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.21

.;T

Eigen

Benign

-0.29

Eigen_PC

Benign

-0.29

FATHMM_MKL

Benign

0.00026

LIST_S2

Benign

0.45

T;T

M_CAP

Benign

0.0036

MetaRNN

Benign

0.025

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.5

L;L

PrimateAI

Uncertain

0.58

PROVEAN

Pathogenic

-5.0

D;D

REVEL

Benign

0.081

Sift

Uncertain

0.020

D;D

Sift4G

Uncertain

0.016

D;D

Polyphen

0.16

.;B

Vest4

0.24

MVP

0.25

MPC

0.93

ClinPred

0.15

GERP RS

2.9

Varity_R

0.18

gMVP

0.026

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