rs143827776

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_004371.4(COPA):​c.192A>G​(p.Pro64Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000444 in 1,614,172 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00051 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00044 ( 3 hom. )

Consequence

COPA
NM_004371.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.0650

Publications

2 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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.59).
BP6
Variant 1-160339945-T-C is Benign according to our data. Variant chr1-160339945-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 542644.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.065 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000505 (77/152346) while in subpopulation AMR AF = 0.00098 (15/15308). AF 95% confidence interval is 0.000603. There are 1 homozygotes in GnomAd4. There are 36 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 77 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COPANM_004371.4 linkc.192A>G p.Pro64Pro synonymous_variant Exon 3 of 33 ENST00000241704.8 NP_004362.2 P53621-1
COPANM_001098398.2 linkc.192A>G p.Pro64Pro synonymous_variant Exon 3 of 33 NP_001091868.1 P53621-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COPAENST00000241704.8 linkc.192A>G p.Pro64Pro synonymous_variant Exon 3 of 33 1 NM_004371.4 ENSP00000241704.7 P53621-1

Frequencies

GnomAD3 genomes
AF:
0.000506
AC:
77
AN:
152228
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000981
Gnomad ASJ
AF:
0.00806
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000829
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000353
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.000616
AC:
155
AN:
251454
AF XY:
0.000677
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000549
Gnomad ASJ exome
AF:
0.00595
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000413
Gnomad OTH exome
AF:
0.000977
GnomAD4 exome
AF:
0.000438
AC:
640
AN:
1461826
Hom.:
3
Cov.:
31
AF XY:
0.000492
AC XY:
358
AN XY:
727212
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.000693
AC:
31
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00562
AC:
147
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.000522
AC:
45
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00191
AC:
11
AN:
5768
European-Non Finnish (NFE)
AF:
0.000321
AC:
357
AN:
1111962
Other (OTH)
AF:
0.000795
AC:
48
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
36
72
107
143
179
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.000505
AC:
77
AN:
152346
Hom.:
1
Cov.:
32
AF XY:
0.000483
AC XY:
36
AN XY:
74500
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41572
American (AMR)
AF:
0.000980
AC:
15
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00806
AC:
28
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5192
South Asian (SAS)
AF:
0.000830
AC:
4
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.000353
AC:
24
AN:
68030
Other (OTH)
AF:
0.00142
AC:
3
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
5
10
14
19
24
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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:
0.000851
Hom.:
0
Bravo
AF:
0.000604
EpiCase
AF:
0.000545
EpiControl
AF:
0.000415

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Nov 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

COPA: BP4, BP7 -

Autoimmune interstitial lung disease-arthritis syndrome Benign:1
Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

COPA-related disorder Benign:1
Jul 15, 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
BayesDel_noAF
Benign
-0.59
CADD
Benign
11
DANN
Benign
0.69
PhyloP100
-0.065
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs143827776; hg19: chr1-160309735; API