Genetic Variant ZCCHC4:p.Arg59Trp (chr4-25314093-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_024936.3(ZCCHC4):c.175C>T(p.Arg59Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000311 in 1,607,668 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

ZCCHC4
NM_024936.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.97

Variant links:

Genes affected

ZCCHC4 (HGNC:22917): (zinc finger CCHC-type containing 4) Enables S-adenosyl-L-methionine binding activity; rRNA (adenine-N6-)-methyltransferase activity; and zinc ion binding activity. Involved in positive regulation of translation and rRNA methylation. Located in cytoplasm and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

ZCCHC4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.829

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZCCHC4	NM_024936.3 link	c.175C>T	p.Arg59Trp	missense_variant	Exon 2 of 13	ENST00000302874.9	NP_079212.2	Q9H5U6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ZCCHC4	ENST00000302874.9 link	c.175C>T	p.Arg59Trp	missense_variant	Exon 2 of 13	1	NM_024936.3	ENSP00000303468.4	Q9H5U6-1
ZCCHC4	ENST00000505451.5 link	n.200C>T		non_coding_transcript_exon_variant	Exon 2 of 9	1
ZCCHC4	ENST00000507760.5 link	n.175C>T		non_coding_transcript_exon_variant	Exon 2 of 9	1		ENSP00000422115.1	Q9H5U6-2

Frequencies

GnomAD3 genomes

AF:

0.00000673

AC:

AN:

148506

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000248

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000121

AC:

AN:

248908

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135076

show subpopulations

Gnomad AFR exome

AF:

0.000129

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:

0.00000884

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1459162

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

725896

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

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:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000673

AC:

AN:

148506

Hom.:

Cov.:

AF XY:

0.0000139

AC XY:

AN XY:

71882

show subpopulations

Gnomad4 AFR

AF:

0.0000248

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:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000248

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 22, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.175C>T (p.R59W) alteration is located in exon 2 (coding exon 2) of the ZCCHC4 gene. This alteration results from a C to T substitution at nucleotide position 175, causing the arginine (R) at amino acid position 59 to be replaced by a tryptophan (W). 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

0.31

BayesDel_addAF

Uncertain

0.040

BayesDel_noAF

Uncertain

0.0

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.057

T;T

Eigen

Benign

-0.0026

Eigen_PC

Benign

0.031

FATHMM_MKL

Benign

0.53

LIST_S2

Uncertain

0.96

D;D

M_CAP

Benign

0.015

MetaRNN

Pathogenic

0.83

D;D

MetaSVM

Benign

-0.97

MutationAssessor

Uncertain

2.8

M;.

PrimateAI

Uncertain

0.70

PROVEAN

Uncertain

-3.8

D;.

REVEL

Benign

0.20

Sift

Benign

0.082

T;.

Sift4G

Benign

0.098

T;T

Polyphen

0.51

P;.

Vest4

0.90

MutPred

0.77

Loss of disorder (P = 0.0215);.;

MVP

0.60

MPC

0.44

ClinPred

1.0

GERP RS

2.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.33

gMVP

0.64

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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