Genetic Variant NM_001137601.3:c.259C>T (chr14-104801456-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001137601.3(ZBTB42):c.259C>T(p.Arg87Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000715 in 1,397,700 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

ZBTB42
NM_001137601.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.07

Variant links:

Genes affected

ZBTB42 (HGNC:32550): (zinc finger and BTB domain containing 42) The protein encoded by this gene is a member of the C2H2 zinc finger protein family. This protein is predicted to have a pox virus and zinc finger (POZ) domain at the N-terminus and four zinc finger domains at the C-terminus. In human and mouse, the protein localizes to the nuclei of skeletal muscle cells. Knockdown of this gene in zebrafish results in abnormal skeletal muscle development and myofibrillar disorganization. A novel homozygous variant of the human gene has been associated with lethal congenital contracture syndrome, an autosomal recessive disorder that results in muscle wasting. [provided by RefSeq, Mar 2015]

ZBTB42 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZBTB42	NM_001137601.3 link	c.259C>T	p.Arg87Cys	missense_variant	Exon 1 of 1	ENST00000342537.8	NP_001131073.1	B2RXF5
ZBTB42	NM_001370342.1 link	c.259C>T	p.Arg87Cys	missense_variant	Exon 2 of 2		NP_001357271.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZBTB42	ENST00000342537.8 link	c.259C>T	p.Arg87Cys	missense_variant	Exon 1 of 1	6	NM_001137601.3	ENSP00000409107.2		B2RXF5
ZBTB42	ENST00000555360.1 link	c.259C>T	p.Arg87Cys	missense_variant	Exon 2 of 2	1		ENSP00000450673.1		B2RXF5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.15e-7

AC:

AN:

1397700

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

689322

show subpopulations

Gnomad4 AFR exome

AF:

0.0000317

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000631

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 23, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.259C>T (p.R87C) alteration is located in exon 2 (coding exon 1) of the ZBTB42 gene. This alteration results from a C to T substitution at nucleotide position 259, causing the arginine (R) at amino acid position 87 to be replaced by a cysteine (C). 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

0.50

BayesDel_addAF

Benign

-0.019

BayesDel_noAF

Benign

-0.27

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.36

T;T

Eigen

Uncertain

0.29

Eigen_PC

Benign

0.22

FATHMM_MKL

Benign

0.65

LIST_S2

Uncertain

0.94

.;D

M_CAP

Pathogenic

0.84

MetaRNN

Uncertain

0.61

D;D

MetaSVM

Benign

-0.52

MutationAssessor

Benign

1.5

L;L

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-4.7

D;D

REVEL

Uncertain

0.41

Sift

Pathogenic

0.0

D;D

Sift4G

Uncertain

0.0050

D;D

Polyphen

1.0

D;D

Vest4

0.37

MVP

0.41

ClinPred

0.99

GERP RS

2.0

Varity_R

0.52

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