Genetic Variant ZBTB42:p.Leu190Leu (chr14-104801767-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001137601.3(ZBTB42):c.570G>C(p.Leu190Leu) variant causes a synonymous change. The variant allele was found at a frequency of 0.00000194 in 1,548,790 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L190L) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ZBTB42
NM_001137601.3 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.02

Publications

19 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.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.59).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001137601.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZBTB42	NM_001137601.3	MANE Select	c.570G>C	p.Leu190Leu	synonymous	Exon 1 of 1	NP_001131073.1	B2RXF5
	ZBTB42	NM_001370342.1		c.570G>C	p.Leu190Leu	synonymous	Exon 2 of 2	NP_001357271.1	B2RXF5

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ZBTB42	ENST00000342537.8	TSL:6 MANE Select	c.570G>C	p.Leu190Leu	synonymous	Exon 1 of 1	ENSP00000409107.2	B2RXF5
ZBTB42	ENST00000555360.1	TSL:1	c.570G>C	p.Leu190Leu	synonymous	Exon 2 of 2	ENSP00000450673.1	B2RXF5
ZBTB42	ENST00000962340.1		c.570G>C	p.Leu190Leu	synonymous	Exon 2 of 2	ENSP00000632399.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152096

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000143

AC:

AN:

1396694

Hom.:

Cov.:

AF XY:

0.00000290

AC XY:

AN XY:

688668

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31568

American (AMR)

AF:

0.00

AC:

AN:

35600

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25138

East Asian (EAS)

AF:

0.00

AC:

AN:

35714

South Asian (SAS)

AF:

0.00

AC:

AN:

79074

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47878

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5692

European-Non Finnish (NFE)

AF:

0.00000186

AC:

AN:

1078136

Other (OTH)

AF:

0.00

AC:

AN:

57894

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152096

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74288

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41414

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10596

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67996

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

2938

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.59

CADD

Benign

9.0

(source)

DANN

Benign

0.77

PhyloP100

4.0

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over