rs779320527

Variant summary

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

The ENST00000361866.8(COL6A1):​c.1459G>A​(p.Glu487Lys) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000994 in 1,609,494 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E487D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

COL6A1
ENST00000361866.8 missense, splice_region

Scores

2
6
10
Splicing: ADA: 0.001212
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.33

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.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000361866.8. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL6A1
NM_001848.3
MANE Select
c.1459G>Ap.Glu487Lys
missense splice_region
Exon 21 of 35NP_001839.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL6A1
ENST00000361866.8
TSL:1 MANE Select
c.1459G>Ap.Glu487Lys
missense splice_region
Exon 21 of 35ENSP00000355180.3
COL6A1
ENST00000683550.1
n.234G>A
splice_region non_coding_transcript_exon
Exon 2 of 5

Frequencies

GnomAD3 genomes
AF:
0.0000134
AC:
2
AN:
149004
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000248
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:
0.0000149
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
249750
AF XY:
0.00000738
show subpopulations
Gnomad AFR exome
AF:
0.000125
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:
0.00000888
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000959
AC:
14
AN:
1460490
Hom.:
0
Cov.:
37
AF XY:
0.00000826
AC XY:
6
AN XY:
726556
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44698
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26124
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86250
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52272
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5760
European-Non Finnish (NFE)
AF:
0.00000809
AC:
9
AN:
1111848
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.0000134
AC:
2
AN:
149004
Hom.:
0
Cov.:
33
AF XY:
0.0000138
AC XY:
1
AN XY:
72578
show subpopulations
African (AFR)
AF:
0.0000248
AC:
1
AN:
40346
American (AMR)
AF:
0.00
AC:
0
AN:
14916
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3456
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4958
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4670
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10218
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
306
European-Non Finnish (NFE)
AF:
0.0000149
AC:
1
AN:
67222
Other (OTH)
AF:
0.00
AC:
0
AN:
2022
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
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:
0.00
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Bethlem myopathy 1A (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.050
T
BayesDel_noAF
Uncertain
-0.070
CADD
Uncertain
24
DANN
Benign
0.96
DEOGEN2
Benign
0.39
T
Eigen
Benign
-0.17
Eigen_PC
Benign
-0.14
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.96
D
M_CAP
Pathogenic
0.50
D
MetaRNN
Uncertain
0.64
D
MetaSVM
Uncertain
-0.051
T
MutationAssessor
Benign
-0.56
N
PhyloP100
3.3
PrimateAI
Pathogenic
0.80
T
PROVEAN
Benign
-1.4
N
REVEL
Uncertain
0.44
Sift
Benign
0.32
T
Sift4G
Benign
0.38
T
Polyphen
1.0
D
Vest4
0.48
MutPred
0.38
Gain of glycosylation at E487 (P = 0.0036)
MVP
0.81
MPC
0.85
ClinPred
0.37
T
GERP RS
3.5
Varity_R
0.15
gMVP
0.61
Mutation Taster
=82/18
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0012
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: rs779320527; hg19: chr21-47417395; API