1-160311950-T-C

Variant names:

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

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)

COPA links:

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
COPA	NM_004371.4 link	c.994A>G	p.Met332Val	missense_variant	Exon 11 of 33	ENST00000241704.8	NP_004362.2
COPA	NM_001098398.2 link	c.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
COPA	ENST00000241704.8 link	c.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.:

Cov.:

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.:

Cov.:

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:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000693

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111994

Other (OTH)

AF:

0.000729

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

115

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

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.:

Cov.:

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:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.000208

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68018

Other (OTH)

AF:

0.00332

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

104

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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.:

ESP6500AA

AF:

0.00908

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000889

AC:

108

Asia WGS

AF:

0.000866

AC:

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

BayesDel_noAF

Benign

-0.31

CADD

Benign

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.0

.;.;T;.;.

Eigen

Benign

-0.22

Eigen_PC

Benign

-0.031

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.92

D;D;D;D;D

MetaRNN

Benign

0.0098

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

.;L;L;.;.

PhyloP100

2.9

PrimateAI

Uncertain

0.71

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

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

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over