chr6-112054360-G-T

Position:

chr6-112054360-G-T

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1PS1_ModeratePM2PP5_Moderate

The NM_198239.2(CCN6):c.3G>T(p.Met1?) variant causes a start lost change. The variant allele was found at a frequency of 0.0000157 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

CCN6
NM_198239.2 start_lost

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 6.64

Variant links:

Genes affected

CCN6 (HGNC:12771): (cellular communication network factor 6) This gene encodes a member of the WNT1 inducible signaling pathway (WISP) protein subfamily, which belongs to the connective tissue growth factor (CTGF) family. WNT1 is a member of a family of cysteine-rich, glycosylated signaling proteins that mediate diverse developmental processes. The CTGF family members are characterized by four conserved cysteine-rich domains: insulin-like growth factor-binding domain, von Willebrand factor type C module, thrombospondin domain and C-terminal cystine knot-like domain. This gene is overexpressed in colon tumors. It may be downstream in the WNT1 signaling pathway that is relevant to malignant transformation. Mutations of this gene are associated with progressive pseudorheumatoid dysplasia, an autosomal recessive skeletal disorder, indicating that the gene is essential for normal postnatal skeletal growth and cartilage homeostasis. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

CCN6 links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PVS1

Start lost variant, no new inframe start found.

PS1

Another start lost variant in NM_198239.2 (CCN6) was described as [Pathogenic] in ClinVar as 2793088

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 6-112054360-G-T is Pathogenic according to our data. Variant chr6-112054360-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 2902108.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CCN6	NM_198239.2 linkuse as main transcript	c.3G>T	p.Met1?	start_lost	1/5	ENST00000368666.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CCN6	ENST00000368666.7 linkuse as main transcript	c.3G>T	p.Met1?	start_lost	1/5	1	NM_198239.2	P1	O95389-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251474

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135914

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000157

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.0000207

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 05, 2023

This variant is present in population databases (rs782220219, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with WISP3-related conditions. This variant disrupts a region of the WISP3 protein in which other variant(s) (p.Cys114Trp) have been determined to be pathogenic (PMID: 21993478, 22685593, 25553839, 25738435, 28018607). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. This sequence change affects the initiator methionine of the WISP3 mRNA. The next in-frame methionine is located at codon 195. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.63

BayesDel_noAF

Uncertain

0.040

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.12

.;T;T;T

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.54

T;D;.;.

M_CAP

Pathogenic

0.63

MetaRNN

Pathogenic

0.99

D;D;D;D

MetaSVM

Benign

-0.35

MutationTaster

Benign

1.0

D;D;N

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-1.0

.;N;.;N

REVEL

Uncertain

0.54

Sift

Pathogenic

0.0

.;D;.;D

Sift4G

Benign

0.28

T;T;T;T

Polyphen

0.99

D;D;D;D

Vest4

0.56

MutPred

0.98

.;Gain of catalytic residue at M1 (P = 0.0107);Gain of catalytic residue at M1 (P = 0.0107);Gain of catalytic residue at M1 (P = 0.0107);

MVP

0.81

MPC

0.11

ClinPred

0.99

GERP RS

5.0

Varity_R

0.89

gMVP

0.53

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

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