rs4689273

chr4-5663474-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_147127.5(EVC2):c.1006-228C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.349 in 152,088 control chromosomes in the GnomAD database, including 10,051 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.35 (10051 hom., cov: 33)
• Consequence: EVC2 NM_147127.5 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.293

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]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BP6: Variant 4-5663474-G-A is Benign according to our data. Variant chr4-5663474-G-A is described in ClinVar as [Benign]. Clinvar id is 671282.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.465 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EVC2	NM_147127.5	c.1006-228C>T		intron_variant		ENST00000344408.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EVC2	ENST00000344408.10	c.1006-228C>T		intron_variant		1	NM_147127.5	P2
EVC2	ENST00000310917.6	c.766-228C>T		intron_variant		1		A2
EVC2	ENST00000475313.5	c.766-228C>T		intron_variant, NMD_transcript_variant		1
EVC2	ENST00000509670.1	c.766-228C>T		intron_variant, NMD_transcript_variant		1

Frequencies

GnomAD3 genomes AF: 0.349 AC: 53078 AN: 151970 Hom.: 10050 Cov.: 33

Gnomad AFR AF: 0.190

Gnomad AMI AF: 0.219

Gnomad AMR AF: 0.394

Gnomad ASJ AF: 0.382

Gnomad EAS AF: 0.481

Gnomad SAS AF: 0.355

Gnomad FIN AF: 0.436

Gnomad MID AF: 0.401

Gnomad NFE AF: 0.411

Gnomad OTH AF: 0.370

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.349 AC: 53084 AN: 152088 Hom.: 10051 Cov.: 33 AF XY: 0.351 AC XY: 26077 AN XY: 74350

Gnomad4 AFR AF: 0.191

Gnomad4 AMR AF: 0.394

Gnomad4 ASJ AF: 0.382

Gnomad4 EAS AF: 0.481

Gnomad4 SAS AF: 0.354

Gnomad4 FIN AF: 0.436

Gnomad4 NFE AF: 0.411

Gnomad4 OTH AF: 0.365

Alfa AF: 0.400 Hom.: 25177

Bravo AF: 0.344

Asia WGS AF: 0.378 AC: 1312 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jun 14, 2018

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
Cadd	Benign	0.53
Dann	Benign	0.27

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

Other links and lift over

dbSNP: rs4689273; hg19: chr4-5665201;