rs369839157

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_001849.4(COL6A2):​c.2462-12G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00023 in 1,587,834 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00049 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

COL6A2
NM_001849.4 intron

Scores

2
Splicing: ADA: 0.0002223
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.86

Publications

0 publications found
Variant links:
Genes affected
COL6A2 (HGNC:2212): (collagen type VI alpha 2 chain) This gene encodes one of the three alpha chains of type VI collagen, a beaded filament collagen found in most connective tissues. The product of this gene contains several domains similar to von Willebrand Factor type A domains. These domains have been shown to bind extracellular matrix proteins, an interaction that explains the importance of this collagen in organizing matrix components. Mutations in this gene are associated with Bethlem myopathy and Ullrich scleroatonic muscular dystrophy. Three transcript variants have been identified for this gene. [provided by RefSeq, Jul 2008]
COL6A2 Gene-Disease associations (from GenCC):
  • collagen 6-related myopathy
    Inheritance: AD, AR Classification: DEFINITIVE Submitted by: ClinGen
  • Ullrich congenital muscular dystrophy 1B
    Inheritance: AR, AD Classification: DEFINITIVE Submitted by: G2P
  • Bethlem myopathy 1A
    Inheritance: AD, AR Classification: STRONG Submitted by: Genomics England PanelApp
  • Ullrich congenital muscular dystrophy 1A
    Inheritance: AD, AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • Bethlem myopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Ullrich congenital muscular dystrophy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • myosclerosis
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 21-46131942-G-A is Benign according to our data. Variant chr21-46131942-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 258328.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL6A2NM_001849.4 linkc.2462-12G>A intron_variant Intron 27 of 27 ENST00000300527.9 NP_001840.3 P12110-1A0A384MDP3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL6A2ENST00000300527.9 linkc.2462-12G>A intron_variant Intron 27 of 27 1 NM_001849.4 ENSP00000300527.4 P12110-1

Frequencies

GnomAD3 genomes
AF:
0.000486
AC:
74
AN:
152182
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00157
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000134
AC:
27
AN:
201578
AF XY:
0.0000992
show subpopulations
Gnomad AFR exome
AF:
0.00103
Gnomad AMR exome
AF:
0.0000641
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000198
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000103
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000203
AC:
291
AN:
1435534
Hom.:
0
Cov.:
33
AF XY:
0.000185
AC XY:
132
AN XY:
712806
show subpopulations
African (AFR)
AF:
0.00128
AC:
42
AN:
32770
American (AMR)
AF:
0.000143
AC:
6
AN:
42068
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25750
East Asian (EAS)
AF:
0.000105
AC:
4
AN:
37942
South Asian (SAS)
AF:
0.0000121
AC:
1
AN:
82986
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47020
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5408
European-Non Finnish (NFE)
AF:
0.000209
AC:
230
AN:
1102160
Other (OTH)
AF:
0.000135
AC:
8
AN:
59430
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
16
32
47
63
79
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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:
0.000486
AC:
74
AN:
152300
Hom.:
0
Cov.:
34
AF XY:
0.000403
AC XY:
30
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.00156
AC:
65
AN:
41560
American (AMR)
AF:
0.0000654
AC:
1
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68016
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.514
Heterozygous variant carriers
0
4
8
13
17
21
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.000586
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Mar 25, 2016
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Bethlem myopathy 1A Benign:1
Sep 29, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Jan 16, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
CADD
Benign
3.8
DANN
Benign
0.95
PhyloP100
-1.9
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00022
dbscSNV1_RF
Benign
0.016
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: rs369839157; hg19: chr21-47551856; API