rs375217284

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PP3_ModerateBP6_Moderate

The NM_001848.3(COL6A1):​c.631C>G​(p.Arg211Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000709 in 1,551,744 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 Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R211C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000071 ( 0 hom. )

Consequence

COL6A1
NM_001848.3 missense

Scores

7
10
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.60

Publications

2 publications found
Variant links:
Genes affected
COL6A1 (HGNC:2211): (collagen type VI alpha 1 chain) The collagens are a superfamily of proteins that play a role in maintaining the integrity of various tissues. Collagens are extracellular matrix proteins and have a triple-helical domain as their common structural element. Collagen VI is a major structural component of microfibrils. The basic structural unit of collagen VI is a heterotrimer of the alpha1(VI), alpha2(VI), and alpha3(VI) chains. The alpha2(VI) and alpha3(VI) chains are encoded by the COL6A2 and COL6A3 genes, respectively. The protein encoded by this gene is the alpha 1 subunit of type VI collagen (alpha1(VI) chain). Mutations in the genes that code for the collagen VI subunits result in the autosomal dominant disorder, Bethlem myopathy. [provided by RefSeq, Jul 2008]
COL6A1 Gene-Disease associations (from GenCC):
  • collagen 6-related myopathy
    Inheritance: AD, AR Classification: DEFINITIVE Submitted by: ClinGen
  • Bethlem myopathy 1A
    Inheritance: AR, AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P
  • Ullrich congenital muscular dystrophy 1A
    Inheritance: AD, AR Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • Bethlem myopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Ullrich congenital muscular dystrophy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PP3
MetaRNN computational evidence supports a deleterious effect, 0.871
BP6
Variant 21-45986986-C-G is Benign according to our data. Variant chr21-45986986-C-G is described in ClinVar as Likely_benign. ClinVar VariationId is 476436.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL6A1NM_001848.3 linkc.631C>G p.Arg211Gly missense_variant Exon 5 of 35 ENST00000361866.8 NP_001839.2 P12109A0A384P5H7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL6A1ENST00000361866.8 linkc.631C>G p.Arg211Gly missense_variant Exon 5 of 35 1 NM_001848.3 ENSP00000355180.3 P12109
COL6A1ENST00000492851.1 linkn.-123C>G upstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152182
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000128
AC:
2
AN:
155946
AF XY:
0.0000121
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000327
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000715
AC:
10
AN:
1399562
Hom.:
0
Cov.:
34
AF XY:
0.00000724
AC XY:
5
AN XY:
690850
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31862
American (AMR)
AF:
0.00
AC:
0
AN:
36202
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25204
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79584
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
45922
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
0.00000925
AC:
10
AN:
1080794
Other (OTH)
AF:
0.00
AC:
0
AN:
58120
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152182
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74332
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41436
American (AMR)
AF:
0.00
AC:
0
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000222
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Bethlem myopathy 1A Benign:1
Aug 17, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.44
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.19
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.64
D;T
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Pathogenic
0.67
D
MetaRNN
Pathogenic
0.87
D;D
MetaSVM
Pathogenic
0.85
D
MutationAssessor
Uncertain
2.0
M;.
PhyloP100
2.6
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.4
D;.
REVEL
Pathogenic
0.83
Sift
Benign
0.12
T;.
Sift4G
Uncertain
0.014
D;D
Polyphen
1.0
D;.
Vest4
0.73
MutPred
0.67
Loss of stability (P = 0.0039);Loss of stability (P = 0.0039);
MVP
0.85
MPC
0.28
ClinPred
0.90
D
GERP RS
4.4
Varity_R
0.47
gMVP
0.76
Mutation Taster
=63/37
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: rs375217284; hg19: chr21-47406900; API