chr4-5631940-GTCT-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PM4_Supporting

The NM_147127.5(EVC2):​c.1560_1562del​(p.Glu520del) variant causes a inframe deletion change. The variant allele was found at a frequency of 0.0000359 in 1,614,216 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (β˜…β˜…).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

EVC2
NM_147127.5 inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.59
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_147127.5. Strenght limited to Supporting due to length of the change: 1aa.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
EVC2NM_147127.5 linkuse as main transcriptc.1560_1562del p.Glu520del inframe_deletion 11/22 ENST00000344408.10 NP_667338.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
EVC2ENST00000344408.10 linkuse as main transcriptc.1560_1562del p.Glu520del inframe_deletion 11/221 NM_147127.5 ENSP00000342144 P2Q86UK5-1
EVC2ENST00000310917.6 linkuse as main transcriptc.1320_1322del p.Glu440del inframe_deletion 11/221 ENSP00000311683 A2Q86UK5-2
EVC2ENST00000475313.5 linkuse as main transcriptc.1320_1322del p.Glu440del inframe_deletion, NMD_transcript_variant 11/231 ENSP00000431981
EVC2ENST00000509670.1 linkuse as main transcriptc.1312_1314del p.Arg438del inframe_deletion, NMD_transcript_variant 12/231 ENSP00000423876

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152230
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000358
AC:
9
AN:
251488
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000615
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000335
AC:
49
AN:
1461868
Hom.:
0
AF XY:
0.0000358
AC XY:
26
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000374
Gnomad4 NFE exome
AF:
0.0000378
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152348
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000113
Hom.:
0
Bravo
AF:
0.0000604
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Ellis-van Creveld syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylApr 14, 2017- -
Ellis-van Creveld syndrome;C0457013:Curry-Hall syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 03, 2022This variant, c.1560_1562del, results in the deletion of 1 amino acid(s) of the EVC2 protein (p.Glu520del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (rs772411576, gnomAD 0.01%). This variant has been observed in individual(s) with severe syndromic retinalciliopathy (PMID: 25044745). ClinVar contains an entry for this variant (Variation ID: 551536). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs772411576; hg19: chr4-5633667; API