Genetic Variant COG7:c.170-10_170-9dupTT (chr16-23445969-T-TAA) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_153603.4(COG7):c.170-10_170-9dupTT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000498 in 1,488,844 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000023 ( 0 hom., cov: 25)

Exomes 𝑓: 0.00054 ( 0 hom. )

Consequence

COG7
NM_153603.4 intron

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.490

Publications

2 publications found

Variant links:

Genes affected

COG7 (HGNC:18622): (component of oligomeric golgi complex 7) The protein encoded by this gene resides in the golgi, and constitutes one of the 8 subunits of the conserved oligomeric Golgi (COG) complex, which is required for normal golgi morphology and localization. Mutations in this gene are associated with the congenital disorder of glycosylation type IIe.[provided by RefSeq, May 2010]

COG7 Gene-Disease associations (from GenCC):

COG7-congenital disorder of glycosylation
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P, Orphanet

COG7 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COG7	NM_153603.4 link	c.170-10_170-9dupTT		intron_variant	Intron 1 of 16	ENST00000307149.10	NP_705831.1	P83436A0A0S2Z652
COG7	XM_017023870.2 link	c.-26-10_-26-9dupTT		intron_variant	Intron 1 of 16		XP_016879359.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
COG7	ENST00000307149.10 link	c.170-9_170-8insTT		intron_variant	Intron 1 of 16	1	NM_153603.4	ENSP00000305442.5		P83436

Frequencies

GnomAD3 genomes

AF:

0.0000232

AC:

AN:

129252

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000286

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:

0.000140

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000167

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00141

AC:

215

AN:

152462

AF XY:

0.00139

show subpopulations

Gnomad AFR exome

AF:

0.00187

Gnomad AMR exome

AF:

0.00109

Gnomad ASJ exome

AF:

0.00132

Gnomad EAS exome

AF:

0.00131

Gnomad FIN exome

AF:

0.00125

Gnomad NFE exome

AF:

0.00147

Gnomad OTH exome

AF:

0.00104

GnomAD4 exome

AF:

0.000544

AC:

739

AN:

1359592

Hom.:

Cov.:

AF XY:

0.000540

AC XY:

366

AN XY:

677384

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00107

AC:

AN:

29912

American (AMR)

AF:

0.00148

AC:

AN:

38502

Ashkenazi Jewish (ASJ)

AF:

0.000814

AC:

AN:

24578

East Asian (EAS)

AF:

0.000265

AC:

AN:

37694

South Asian (SAS)

AF:

0.000619

AC:

AN:

79144

European-Finnish (FIN)

AF:

0.000458

AC:

AN:

41466

Middle Eastern (MID)

AF:

0.000197

AC:

AN:

5086

European-Non Finnish (NFE)

AF:

0.000501

AC:

524

AN:

1046710

Other (OTH)

AF:

0.000478

AC:

AN:

56500

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.270

Heterozygous variant carriers

165

248

330

413

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

110

<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:

0.0000232

AC:

AN:

129252

Hom.:

Cov.:

AF XY:

0.0000322

AC XY:

AN XY:

62174

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.0000286

AC:

AN:

34996

American (AMR)

AF:

0.00

AC:

AN:

12622

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3108

East Asian (EAS)

AF:

0.00

AC:

AN:

4592

South Asian (SAS)

AF:

0.00

AC:

AN:

4122

European-Finnish (FIN)

AF:

0.000140

AC:

AN:

7128

Middle Eastern (MID)

AF:

0.00

AC:

AN:

268

European-Non Finnish (NFE)

AF:

0.0000167

AC:

AN:

59864

Other (OTH)

AF:

0.00

AC:

AN:

1738

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.342

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.00144

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.49

Splicing

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

Computational scores

Splicing

Publications

Other links and lift over