rs886037764

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000344408.10(EVC2):c.3141G>T(p.Trp1047Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,840 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

EVC2
ENST00000344408.10 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.35

Variant links:

Genes affected

EVC2 (HGNC:19747): (EvC ciliary complex subunit 2) This gene encodes a protein that functions in bone formation and skeletal development. Mutations in this gene, as well as in a neighboring gene that lies in a head-to-head configuration, cause Ellis-van Creveld syndrome, an autosomal recessive skeletal dysplasia that is also known as chondroectodermal dysplasia. Mutations in this gene also cause acrofacial dysostosis Weyers type, also referred to as Curry-Hall syndrome, a disease that combines limb and facial abnormalities. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

EVC2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.21664697).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EVC2	NM_147127.5 linkuse as main transcript	c.3141G>T	p.Trp1047Cys	missense_variant	18/22	ENST00000344408.10	NP_667338.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EVC2	ENST00000344408.10 linkuse as main transcript	c.3141G>T	p.Trp1047Cys	missense_variant	18/22	1	NM_147127.5	ENSP00000342144	P2	Q86UK5-1
EVC2	ENST00000310917.6 linkuse as main transcript	c.2901G>T	p.Trp967Cys	missense_variant	18/22	1		ENSP00000311683	A2	Q86UK5-2
EVC2	ENST00000475313.5 linkuse as main transcript	c.2901G>T	p.Trp967Cys	missense_variant, NMD_transcript_variant	18/23	1		ENSP00000431981
EVC2	ENST00000509670.1 linkuse as main transcript	c.*1534G>T		3_prime_UTR_variant, NMD_transcript_variant	19/23	1		ENSP00000423876

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251072

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135752

show subpopulations

Gnomad AFR exome

AF:

0.0000617

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461840

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727222

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Ellis-van Creveld syndrome;C0457013:Curry-Hall syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 28, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with EVC2-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.007%). This sequence change replaces tryptophan, which is neutral and slightly polar, with cysteine, which is neutral and slightly polar, at codon 1047 of the EVC2 protein (p.Trp1047Cys). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.35

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.27

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.050

T;.

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.20

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.82

T;T

M_CAP

Benign

0.014

MetaRNN

Benign

0.22

T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

1.7

L;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.27

PROVEAN

Benign

-2.1

N;N

REVEL

Benign

0.11

Sift

Uncertain

0.015

D;D

Sift4G

Uncertain

0.014

D;D

Polyphen

0.011

B;.

Vest4

0.41

MutPred

0.31

Gain of disorder (P = 0.0621);.;

MVP

0.79

MPC

0.11

ClinPred

0.43

GERP RS

3.3

Varity_R

0.18

gMVP

0.18

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