Variant 6-131949549-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001901.4(CCN2):c.765G>T(p.Lys255Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000281 in 1,277,046 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00027 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00028 ( 0 hom. )

Consequence

CCN2
NM_001901.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.18

Variant links:

Genes affected

CCN2 (HGNC:2500): (cellular communication network factor 2) The protein encoded by this gene is a mitogen that is secreted by vascular endothelial cells. The encoded protein plays a role in chondrocyte proliferation and differentiation, cell adhesion in many cell types, and is related to platelet-derived growth factor. Certain polymorphisms in this gene have been linked with a higher incidence of systemic sclerosis. [provided by RefSeq, Nov 2009]

CCN2 links:

LINC01013 (HGNC:48987): (long intergenic non-protein coding RNA 1013)

LINC01013 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.028245062).

BS2

High AC in GnomAd4 at 39 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CCN2	NM_001901.4 linkuse as main transcript	c.765G>T	p.Lys255Asn	missense_variant	5/5	ENST00000367976.4	NP_001892.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CCN2	ENST00000367976.4 linkuse as main transcript	c.765G>T	p.Lys255Asn	missense_variant	5/5	1	NM_001901.4	ENSP00000356954	P1	P29279-1

Frequencies

GnomAD3 genomes

AF:

0.000270

AC:

AN:

144644

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00995

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000604

Gnomad OTH

AF:

0.000494

GnomAD3 exomes

AF:

0.000429

AC:

107

AN:

249478

Hom.:

AF XY:

0.000356

AC XY:

AN XY:

135000

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00874

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000805

Gnomad OTH exome

AF:

0.000816

GnomAD4 exome

AF:

0.000283

AC:

320

AN:

1132402

Hom.:

Cov.:

AF XY:

0.000274

AC XY:

155

AN XY:

565292

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000160

Gnomad4 ASJ exome

AF:

0.0145

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000436

Gnomad4 OTH exome

AF:

0.000745

GnomAD4 genome

AF:

0.000270

AC:

AN:

144644

Hom.:

Cov.:

AF XY:

0.000213

AC XY:

AN XY:

70394

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00995

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000604

Gnomad4 OTH

AF:

0.000494

Alfa

AF:

0.000480

Hom.:

Bravo

AF:

0.000280

ExAC

AF:

0.000371

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 10, 2022

The c.765G>T (p.K255N) alteration is located in exon 5 (coding exon 5) of the CTGF gene. This alteration results from a G to T substitution at nucleotide position 765, causing the lysine (K) at amino acid position 255 to be replaced by an asparagine (N). 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

Pathogenic

0.88

BayesDel_addAF

Benign

-0.065

BayesDel_noAF

Uncertain

-0.060

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.96

Eigen

Pathogenic

0.89

Eigen_PC

Pathogenic

0.85

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.94

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.028

MetaSVM

Pathogenic

0.85

MutationAssessor

Pathogenic

2.9

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-4.6

REVEL

Pathogenic

0.72

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.47

MutPred

0.70

Loss of methylation at K255 (P = 3e-04);

MVP

0.99

MPC

1.5

ClinPred

0.19

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.82

gMVP

0.66

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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