chr7-130611071-C-T

Position:

• chr7-130611071-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_012133.6(COPG2):​c.619G>A​(p.Asp207Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 152,084 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 (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: COPG2 NM_012133.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.71

Genes affected

COPG2 (HGNC:2237): (COPI coat complex subunit gamma 2) Predicted to enable structural molecule activity. Involved in intra-Golgi vesicle-mediated transport. Part of COPI vesicle coat. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.927

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COPG2	NM_012133.6	c.619G>A	p.Asp207Asn	missense_variant	9/24	ENST00000425248.5
COPG2	NM_001290033.2	c.619G>A	p.Asp207Asn	missense_variant	9/20

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COPG2	ENST00000425248.5	c.619G>A	p.Asp207Asn	missense_variant	9/24	1	NM_012133.6	P1
COPG2	ENST00000330992.8	c.619G>A	p.Asp207Asn	missense_variant	9/20	1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152084 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 31

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152084 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74272

Gnomad4 AFR AF: 0.0000242

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Bravo AF: 0.0000264

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 02, 2021

The c.619G>A (p.D207N) alteration is located in exon 1 (coding exon 1) of the COPG2 gene. This alteration results from a G to A substitution at nucleotide position 619, causing the aspartic acid (D) at amino acid position 207 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Benign	-0.096	T
BayesDel_noAF	Benign	-0.38
CADD	Pathogenic	31
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.26	T;.
Eigen	Pathogenic	0.91
Eigen_PC	Pathogenic	0.85
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	1.0	D;D
M_CAP	Benign	0.045	D
MetaRNN	Pathogenic	0.93	D;D
MetaSVM	Benign	-0.43	T
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.77	T
Sift4G	Uncertain	0.0060	D;D
Polyphen		1.0	D;.
Vest4		0.93
MutPred		0.80		Gain of MoRF binding (P = 0.0401);Gain of MoRF binding (P = 0.0401);
MVP		0.77
ClinPred		1.0	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.39
gMVP		0.63

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

LitVar

Other links and lift over

dbSNP: rs1322773652; hg19: chr7-130295942;