13-39655742-G-A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_020751.3(COG6):​c.16G>A​(p.Gly6Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000113 in 1,595,524 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

COG6
NM_020751.3 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.25

Publications

0 publications found
Variant links:
Genes affected
COG6 (HGNC:18621): (component of oligomeric golgi complex 6) This gene encodes a subunit of the conserved oligomeric Golgi complex that is required for maintaining normal structure and activity of the Golgi apparatus. The encoded protein is organized with conserved oligomeric Golgi complex components 5, 7 and 8 into a sub-complex referred to as lobe B. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Feb 2009]
COG6 Gene-Disease associations (from GenCC):
  • COG6-congenital disorder of glycosylation
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Orphanet, Labcorp Genetics (formerly Invitae)
  • hypohidrosis-enamel hypoplasia-palmoplantar keratoderma-intellectual disability syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.087773055).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COG6NM_020751.3 linkc.16G>A p.Gly6Arg missense_variant Exon 1 of 19 ENST00000455146.8 NP_065802.1 Q9Y2V7-1A0A024RDW5
COG6NM_001145079.2 linkc.16G>A p.Gly6Arg missense_variant Exon 1 of 19 NP_001138551.1 Q9Y2V7-2A0A140VJG7
COG6XM_011535168.2 linkc.16G>A p.Gly6Arg missense_variant Exon 1 of 20 XP_011533470.1
COG6NR_026745.1 linkn.116G>A non_coding_transcript_exon_variant Exon 1 of 20

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COG6ENST00000455146.8 linkc.16G>A p.Gly6Arg missense_variant Exon 1 of 19 1 NM_020751.3 ENSP00000397441.2 Q9Y2V7-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152260
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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
GnomAD2 exomes
AF:
0.0000370
AC:
8
AN:
216094
AF XY:
0.0000170
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000246
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000111
AC:
16
AN:
1443264
Hom.:
0
Cov.:
40
AF XY:
0.00000977
AC XY:
7
AN XY:
716336
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33016
American (AMR)
AF:
0.000208
AC:
9
AN:
43168
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25778
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38658
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83866
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50956
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5246
European-Non Finnish (NFE)
AF:
0.00000544
AC:
6
AN:
1103042
Other (OTH)
AF:
0.0000168
AC:
1
AN:
59534
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152260
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74390
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41474
American (AMR)
AF:
0.000131
AC:
2
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68046
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000264

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
May 30, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.16G>A (p.G6R) alteration is located in exon 1 (coding exon 1) of the COG6 gene. This alteration results from a G to A substitution at nucleotide position 16, causing the glycine (G) at amino acid position 6 to be replaced by an arginine (R). 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
Benign
0.31
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0080
.;T;T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.75
D
LIST_S2
Uncertain
0.89
D;D;D
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.088
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.9
L;L;.
PhyloP100
3.2
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.050
N;N;.
REVEL
Benign
0.044
Sift
Benign
0.062
T;T;.
Sift4G
Benign
0.46
T;T;T
Polyphen
0.0020
.;B;.
Vest4
0.29
MutPred
0.39
Gain of relative solvent accessibility (P = 0.0483);Gain of relative solvent accessibility (P = 0.0483);Gain of relative solvent accessibility (P = 0.0483);
MVP
0.085
MPC
0.061
ClinPred
0.23
T
GERP RS
3.8
PromoterAI
0.031
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.7
Varity_R
0.060
gMVP
0.28
Mutation Taster
=89/11
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: rs751060043; hg19: chr13-40229879; API