rs2302075

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_153717.3(EVC):​c.1346C>A​(p.Thr449Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.8 in 1,613,976 control chromosomes in the GnomAD database, including 518,043 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. T449T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.83 ( 53273 hom., cov: 32)
Exomes 𝑓: 0.80 ( 464770 hom. )

Consequence

EVC
NM_153717.3 missense

Scores

18

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: 0.433

Publications

39 publications found
Variant links:
Genes affected
EVC (HGNC:3497): (EvC ciliary complex subunit 1) This gene encodes a protein containing a leucine zipper and a transmembrane domain. This gene has been implicated in both Ellis-van Creveld syndrome (EvC) and Weyers acrodental dysostosis. [provided by RefSeq, Jul 2008]
CRMP1 (HGNC:2365): (collapsin response mediator protein 1) This gene encodes a member of a family of cytosolic phosphoproteins expressed exclusively in the nervous system. The encoded protein is thought to be a part of the semaphorin signal transduction pathway implicated in semaphorin-induced growth cone collapse during neural development. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=5.731524E-7).
BP6
Variant 4-5753815-C-A is Benign according to our data. Variant chr4-5753815-C-A is described in ClinVar as Benign. ClinVar VariationId is 167044.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.948 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
EVCNM_153717.3 linkc.1346C>A p.Thr449Lys missense_variant Exon 10 of 21 ENST00000264956.11 NP_714928.1 P57679

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
EVCENST00000264956.11 linkc.1346C>A p.Thr449Lys missense_variant Exon 10 of 21 1 NM_153717.3 ENSP00000264956.6 P57679
EVCENST00000509451.1 linkc.1346C>A p.Thr449Lys missense_variant Exon 10 of 12 1 ENSP00000426774.1 E9PCN4
EVCENST00000514919.1 linkn.409C>A non_coding_transcript_exon_variant Exon 2 of 2 2
CRMP1ENST00000506216.5 linkn.1648-5503G>T intron_variant Intron 12 of 12 5

Frequencies

GnomAD3 genomes
AF:
0.833
AC:
126668
AN:
152046
Hom.:
53221
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.956
Gnomad AMI
AF:
0.785
Gnomad AMR
AF:
0.771
Gnomad ASJ
AF:
0.832
Gnomad EAS
AF:
0.819
Gnomad SAS
AF:
0.776
Gnomad FIN
AF:
0.772
Gnomad MID
AF:
0.772
Gnomad NFE
AF:
0.788
Gnomad OTH
AF:
0.822
GnomAD2 exomes
AF:
0.791
AC:
198863
AN:
251462
AF XY:
0.789
show subpopulations
Gnomad AFR exome
AF:
0.961
Gnomad AMR exome
AF:
0.713
Gnomad ASJ exome
AF:
0.827
Gnomad EAS exome
AF:
0.812
Gnomad FIN exome
AF:
0.768
Gnomad NFE exome
AF:
0.791
Gnomad OTH exome
AF:
0.784
GnomAD4 exome
AF:
0.797
AC:
1164596
AN:
1461812
Hom.:
464770
Cov.:
62
AF XY:
0.795
AC XY:
578466
AN XY:
727214
show subpopulations
African (AFR)
AF:
0.961
AC:
32160
AN:
33480
American (AMR)
AF:
0.720
AC:
32206
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.831
AC:
21716
AN:
26136
East Asian (EAS)
AF:
0.814
AC:
32298
AN:
39700
South Asian (SAS)
AF:
0.781
AC:
67323
AN:
86254
European-Finnish (FIN)
AF:
0.763
AC:
40756
AN:
53408
Middle Eastern (MID)
AF:
0.760
AC:
4380
AN:
5760
European-Non Finnish (NFE)
AF:
0.796
AC:
884999
AN:
1111956
Other (OTH)
AF:
0.807
AC:
48758
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
15526
31052
46577
62103
77629
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20806
41612
62418
83224
104030
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.833
AC:
126777
AN:
152164
Hom.:
53273
Cov.:
32
AF XY:
0.829
AC XY:
61676
AN XY:
74376
show subpopulations
African (AFR)
AF:
0.956
AC:
39735
AN:
41554
American (AMR)
AF:
0.770
AC:
11775
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.832
AC:
2889
AN:
3472
East Asian (EAS)
AF:
0.819
AC:
4217
AN:
5150
South Asian (SAS)
AF:
0.778
AC:
3741
AN:
4810
European-Finnish (FIN)
AF:
0.772
AC:
8180
AN:
10592
Middle Eastern (MID)
AF:
0.769
AC:
226
AN:
294
European-Non Finnish (NFE)
AF:
0.788
AC:
53558
AN:
67978
Other (OTH)
AF:
0.824
AC:
1740
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1064
2128
3192
4256
5320
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
880
1760
2640
3520
4400
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.799
Hom.:
153211
Bravo
AF:
0.839
TwinsUK
AF:
0.809
AC:
2999
ALSPAC
AF:
0.809
AC:
3119
ESP6500AA
AF:
0.954
AC:
4203
ESP6500EA
AF:
0.801
AC:
6886
ExAC
AF:
0.796
AC:
96695
Asia WGS
AF:
0.789
AC:
2746
AN:
3478
EpiCase
AF:
0.794
EpiControl
AF:
0.795

ClinVar

Significance: Benign
Submissions summary: Benign:12
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:5
-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Mar 03, 2016
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 03, 2014
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Ellis-van Creveld syndrome Benign:4
Sep 16, 2020
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jun 15, 2021
Pars Genome Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Jul 30, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Ellis-van Creveld syndrome;C0457013:Curry-Hall syndrome Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Curry-Hall syndrome Benign:1
Jul 30, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.047
BayesDel_addAF
Benign
-0.75
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
0.44
DANN
Benign
0.81
DEOGEN2
Benign
0.062
T;.
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.0022
N
LIST_S2
Benign
0.038
T;T
MetaRNN
Benign
5.7e-7
T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
-1.8
N;.
PhyloP100
0.43
PrimateAI
Benign
0.26
T
PROVEAN
Benign
1.9
N;N
REVEL
Benign
0.11
Sift
Benign
1.0
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0
B;.
Vest4
0.062
ClinPred
0.0016
T
GERP RS
-0.27
Varity_R
0.035
gMVP
0.047
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs2302075; hg19: chr4-5755542; COSMIC: COSV107299065; API