rs115066135

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_004371.4(COPA):​c.994A>G​(p.Met332Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000551 in 1,614,080 control chromosomes in the GnomAD database, including 4 homozygotes. 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 Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M332L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0031 ( 3 hom., cov: 32)
Exomes 𝑓: 0.00029 ( 1 hom. )

Consequence

COPA
NM_004371.4 missense

Scores

2
3
12

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 2.90

Publications

4 publications found
Variant links:
Genes affected
COPA (HGNC:2230): (COPI coat complex subunit alpha) In eukaryotic cells, protein transport between the endoplasmic reticulum and Golgi compartments is mediated in part by non-clathrin-coated vesicular coat proteins (COPs). Seven coat proteins have been identified, and they represent subunits of a complex known as coatomer. The subunits are designated alpha-COP, beta-COP, beta-prime-COP, gamma-COP, delta-COP, epsilon-COP, and zeta-COP. The alpha-COP, encoded by COPA, shares high sequence similarity with RET1P, the alpha subunit of the coatomer complex in yeast. Also, the N-terminal 25 amino acids of alpha-COP encode the bioactive peptide, xenin, which stimulates exocrine pancreatic secretion and may act as a gastrointestinal hormone. Alternative splicing results in multiple splice forms encoding distinct isoforms. [provided by RefSeq, Jul 2008]
COPA Gene-Disease associations (from GenCC):
  • autoimmune interstitial lung disease-arthritis syndrome
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

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=0.009793341).
BP6
Variant 1-160311950-T-C is Benign according to our data. Variant chr1-160311950-T-C is described in ClinVar as Benign. ClinVar VariationId is 542646.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00305 (465/152216) while in subpopulation AFR AF = 0.0105 (438/41526). AF 95% confidence interval is 0.00973. There are 3 homozygotes in GnomAd4. There are 234 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 465 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COPANM_004371.4 linkc.994A>G p.Met332Val missense_variant Exon 11 of 33 ENST00000241704.8 NP_004362.2
COPANM_001098398.2 linkc.994A>G p.Met332Val missense_variant Exon 11 of 33 NP_001091868.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COPAENST00000241704.8 linkc.994A>G p.Met332Val missense_variant Exon 11 of 33 1 NM_004371.4 ENSP00000241704.7

Frequencies

GnomAD3 genomes
AF:
0.00304
AC:
463
AN:
152098
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0105
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00124
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00335
GnomAD2 exomes
AF:
0.000716
AC:
180
AN:
251432
AF XY:
0.000500
show subpopulations
Gnomad AFR exome
AF:
0.0100
Gnomad AMR exome
AF:
0.000376
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000291
AC:
425
AN:
1461864
Hom.:
1
Cov.:
31
AF XY:
0.000256
AC XY:
186
AN XY:
727228
show subpopulations
African (AFR)
AF:
0.0106
AC:
354
AN:
33480
American (AMR)
AF:
0.000358
AC:
16
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86254
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53420
Middle Eastern (MID)
AF:
0.000693
AC:
4
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111994
Other (OTH)
AF:
0.000729
AC:
44
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
23
46
69
92
115
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.00305
AC:
465
AN:
152216
Hom.:
3
Cov.:
32
AF XY:
0.00314
AC XY:
234
AN XY:
74434
show subpopulations
African (AFR)
AF:
0.0105
AC:
438
AN:
41526
American (AMR)
AF:
0.00124
AC:
19
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10598
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68018
Other (OTH)
AF:
0.00332
AC:
7
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
21
42
62
83
104
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00106
Hom.:
0
ESP6500AA
AF:
0.00908
AC:
40
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000889
AC:
108
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Autoimmune interstitial lung disease-arthritis syndrome Benign:1
Dec 29, 2024
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

COPA-related disorder Benign:1
Jul 11, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.052
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
16
DANN
Benign
0.93
DEOGEN2
Benign
0.0
.;.;T;.;.
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.031
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.92
D;D;D;D;D
MetaRNN
Benign
0.0098
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
.;L;L;.;.
PhyloP100
2.9
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
0.0
.;N;N;.;.
REVEL
Benign
0.0
Sift
Pathogenic
0.0
.;T;T;.;.
Sift4G
Pathogenic
0.0
.;T;T;.;.
Vest4
0.0
ClinPred
0.0098
T
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.18
gMVP
0.38
Mutation Taster
=91/9
polymorphism

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: rs115066135; hg19: chr1-160281740; API