2-232486064-C-T

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_004826.4(ECEL1):​c.590G>A​(p.Gly197Asp) variant causes a missense change. The variant allele was found at a frequency of 0.0000106 in 1,605,580 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G197S) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

ECEL1
NM_004826.4 missense

Scores

9
7
3

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 5.85

Publications

4 publications found
Variant links:
Genes affected
ECEL1 (HGNC:3147): (endothelin converting enzyme like 1) This gene encodes a member of the M13 family of endopeptidases. Members of this family are zinc-containing type II integral-membrane proteins that are important regulators of neuropeptide and peptide hormone activity. Mutations in this gene are associated with autosomal recessive distal arthrogryposis, type 5D. This gene has multiple pseudogenes on chromosome 2. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2014]
ECEL1 Gene-Disease associations (from GenCC):
  • distal arthrogryposis type 5D
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr2-232486065-C-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 3340601.Status of the report is criteria_provided_single_submitter, 1 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.908

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ECEL1NM_004826.4 linkc.590G>A p.Gly197Asp missense_variant Exon 2 of 18 ENST00000304546.6 NP_004817.2
ECEL1NM_001290787.2 linkc.590G>A p.Gly197Asp missense_variant Exon 2 of 18 NP_001277716.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ECEL1ENST00000304546.6 linkc.590G>A p.Gly197Asp missense_variant Exon 2 of 18 1 NM_004826.4 ENSP00000302051.1
ECEL1ENST00000409941.1 linkc.590G>A p.Gly197Asp missense_variant Exon 1 of 17 1 ENSP00000386333.1
ECEL1ENST00000482346.1 linkn.794G>A non_coding_transcript_exon_variant Exon 2 of 17 2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152158
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
225142
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000963
AC:
14
AN:
1453422
Hom.:
0
Cov.:
32
AF XY:
0.00000830
AC XY:
6
AN XY:
722642
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33318
American (AMR)
AF:
0.00
AC:
0
AN:
44088
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25942
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39436
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85270
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50328
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5754
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1109232
Other (OTH)
AF:
0.00
AC:
0
AN:
60054
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000197
AC:
3
AN:
152158
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74312
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41436
American (AMR)
AF:
0.0000654
AC:
1
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
312
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.542
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000712
Hom.:
0
Bravo
AF:
0.0000113
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Distal arthrogryposis type 5D Pathogenic:1
Jan 10, 2013
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not provided Uncertain:1
Oct 31, 2019
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Identified in a patient with clinical features consistent with distal arthrogryposis 5D in published literature (McMillin et al., 2013); Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; This variant is associated with the following publications: (PMID: 25173900, 25708584, 23261301) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.29
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.70
D;.
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
D;D
M_CAP
Pathogenic
0.81
D
MetaRNN
Pathogenic
0.91
D;D
MetaSVM
Uncertain
0.036
D
MutationAssessor
Benign
1.6
L;L
PhyloP100
5.8
PrimateAI
Pathogenic
0.91
D
PROVEAN
Pathogenic
-5.3
D;D
REVEL
Pathogenic
0.81
Sift
Uncertain
0.0030
D;D
Sift4G
Benign
0.070
T;T
Polyphen
0.97
D;D
Vest4
0.85
MutPred
0.66
Gain of solvent accessibility (P = 0.024);Gain of solvent accessibility (P = 0.024);
MVP
0.88
MPC
0.70
ClinPred
0.99
D
GERP RS
4.1
Varity_R
0.82
gMVP
0.92
Mutation Taster
=21/79
disease causing (ClinVar)

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: rs587776921; hg19: chr2-233350774; API