Genetic Variant NM_024325.6:c.1655G>C (chr20-2483306-C-G) – 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_024325.6(ZNF343):c.1655G>C(p.Ser552Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,464 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ZNF343
NM_024325.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -4.25

Variant links:

Genes affected

ZNF343 (HGNC:16017): (zinc finger protein 343) Enables sequence-specific double-stranded DNA binding activity. Predicted to be involved in negative regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ZNF343 links:

ENSG00000256566 (HGNC:):

ENSG00000256566 links:

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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=0.039191544).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZNF343	NM_024325.6 link	c.1655G>C	p.Ser552Thr	missense_variant	Exon 6 of 6	ENST00000278772.9	NP_077301.4	Q6P1L6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZNF343	ENST00000278772.9 link	c.1655G>C	p.Ser552Thr	missense_variant	Exon 6 of 6	2	NM_024325.6	ENSP00000278772.4		Q6P1L6-1
ENSG00000256566	ENST00000461548.1 link	n.304+9393G>C		intron_variant	Intron 5 of 6	5		ENSP00000456213.1		F5H5K5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460464

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726556

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1655G>C (p.S552T) alteration is located in exon 6 (coding exon 4) of the ZNF343 gene. This alteration results from a G to C substitution at nucleotide position 1655, causing the serine (S) at amino acid position 552 to be replaced by a threonine (T). 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

0.10

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.65

CADD

Benign

0.20

DANN

Benign

0.76

DEOGEN2

Benign

0.0044

T;.;.

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.080

LIST_S2

Benign

0.022

T;T;T

M_CAP

Benign

0.0033

MetaRNN

Benign

0.039

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.35

N;.;.

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.99

N;.;.

REVEL

Benign

0.052

Sift

Benign

0.42

T;.;.

Sift4G

Benign

0.44

T;T;T

Polyphen

0.026

B;.;.

Vest4

0.10

MutPred

0.17

Loss of disorder (P = 0.0676);.;.;

MVP

0.13

MPC

0.067

ClinPred

0.077

GERP RS

-2.9

Varity_R

0.024

gMVP

0.018

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over