Variant 3-129171507-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_003418.5(CNBP):c.156C>A(p.Asp52Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000138 in 152,142 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. D52D) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00011 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CNBP
NM_003418.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.97

Variant links:

Genes affected

CNBP (HGNC:13164): (CCHC-type zinc finger nucleic acid binding protein) This gene encodes a nucleic-acid binding protein with seven zinc-finger domains. The protein has a preference for binding single stranded DNA and RNA. The protein functions in cap-independent translation of ornithine decarboxylase mRNA, and may also function in sterol-mediated transcriptional regulation. A CCTG expansion from <30 repeats to 75-11000 repeats in the first intron of this gene results in myotonic dystrophy type 2. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2016]

CNBP links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant where missense usually causes diseases, CNBP

BP4

Computational evidence support a benign effect (MetaRNN=0.2492246).

BS2

High AC in GnomAd4 at 21 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CNBP	NM_003418.5 linkuse as main transcript	c.156C>A	p.Asp52Glu	missense_variant	3/5	ENST00000422453.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CNBP	ENST00000422453.7 linkuse as main transcript	c.156C>A	p.Asp52Glu	missense_variant	3/5	1	NM_003418.5		P62633-1

Frequencies

GnomAD3 genomes

AF:

0.000138

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00111

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000278

AC:

AN:

251466

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135908

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000867

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:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.000105

AC:

154

AN:

1461872

Hom.:

Cov.:

AF XY:

0.0000990

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

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:

0.000133

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000138

AC:

AN:

152142

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74330

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00111

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Myotonic dystrophy type 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Revvity Omics, Revvity

Jul 21, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.30

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.27

CADD

Benign

DANN

Uncertain

0.98

Eigen

Benign

0.012

Eigen_PC

Uncertain

0.22

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.73

T;T;T;T;T;T;T;D

M_CAP

Benign

0.0039

MetaRNN

Benign

0.23

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.92

MutationTaster

Benign

0.018

P;P;P;P;P;P;P

PrimateAI

Pathogenic

0.83

PROVEAN

Benign

-0.24

N;N;N;N;N;N;N;N

REVEL

Benign

0.067

Sift

Benign

0.28

T;T;T;T;T;T;T;T

Sift4G

Benign

1.0

T;T;T;T;T;T;T;.

Polyphen

0.17

B;P;.;.;.;.;.;.

Vest4

0.56

MutPred

0.35

.;Loss of helix (P = 0.0376);Loss of helix (P = 0.0376);.;.;.;Loss of helix (P = 0.0376);.;

MVP

0.27

MPC

1.6

ClinPred

0.090

GERP RS

5.8

Varity_R

0.067

gMVP

0.60

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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