Genetic Variant ZBTB42:p.Pro337Leu (chr14-104802207-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001137601.3(ZBTB42):c.1010C>T(p.Pro337Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000213 in 1,550,002 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 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

ZBTB42
NM_001137601.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.54

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

lethal congenital contracture syndrome 6
Inheritance: AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ZBTB42 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.19982141).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZBTB42	NM_001137601.3 link	c.1010C>T	p.Pro337Leu	missense_variant	Exon 1 of 1	ENST00000342537.8	NP_001131073.1	B2RXF5
ZBTB42	NM_001370342.1 link	c.1010C>T	p.Pro337Leu	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.1010C>T	p.Pro337Leu	missense_variant	Exon 1 of 1	6	NM_001137601.3	ENSP00000409107.2		B2RXF5
ZBTB42	ENST00000555360.1 link	c.1010C>T	p.Pro337Leu	missense_variant	Exon 2 of 2	1		ENSP00000450673.1		B2RXF5

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152258

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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

GnomAD2 exomes

AF:

0.00000658

AC:

AN:

152070

AF XY:

0.0000124

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000215

AC:

AN:

1397744

Hom.:

Cov.:

AF XY:

0.0000290

AC XY:

AN XY:

689368

show subpopulations

African (AFR)

AF:

0.000285

AC:

AN:

31596

American (AMR)

AF:

0.00

AC:

AN:

35704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35738

South Asian (SAS)

AF:

0.0000505

AC:

AN:

79236

European-Finnish (FIN)

AF:

0.0000210

AC:

AN:

47706

Middle Eastern (MID)

AF:

0.000702

AC:

AN:

5696

European-Non Finnish (NFE)

AF:

0.00000927

AC:

AN:

1078910

Other (OTH)

AF:

0.0000345

AC:

AN:

57976

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74376

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41460

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68052

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000282

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 16, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1010C>T (p.P337L) 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 1010, causing the proline (P) at amino acid position 337 to be replaced by a leucine (L). 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

0.26

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.056

T;T

Eigen

Benign

-0.21

Eigen_PC

Benign

-0.085

FATHMM_MKL

Uncertain

0.79

LIST_S2

Uncertain

0.86

.;D

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.20

T;T

MetaSVM

Benign

-0.77

MutationAssessor

Benign

1.8

L;L

PhyloP100

4.5

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-3.0

D;D

REVEL

Benign

0.18

Sift

Benign

0.13

T;T

Sift4G

Benign

0.11

T;T

Polyphen

0.27

B;B

Vest4

0.21

MVP

0.37

ClinPred

0.68

GERP RS

3.3

Varity_R

0.16

Mutation Taster

=82/18

polymorphism

(source)

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

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chr14-104802207-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over