rs760815168

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_001848.3(COL6A1):​c.1540G>A​(p.Ala514Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000304 in 1,612,166 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

COL6A1
NM_001848.3 missense

Scores

4
14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 0.510

Publications

4 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):
  • Bethlem myopathy 1A
    Inheritance: AR, AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P
  • collagen 6-related myopathy
    Inheritance: SD, AD, AR Classification: DEFINITIVE Submitted by: ClinGen
  • 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.12992704).
BP6
Variant 21-45998136-G-A is Benign according to our data. Variant chr21-45998136-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 476416.
BS1
Variant frequency is greater than expected in population amr. GnomAdExome4 allele frequency = 0.0000301 (44/1460010) while in subpopulation AMR AF = 0.000291 (13/44680). AF 95% confidence interval is 0.000172. There are 0 homozygotes in GnomAdExome4. There are 21 alleles in the male GnomAdExome4 subpopulation. Median coverage is 34. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001848.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL6A1
NM_001848.3
MANE Select
c.1540G>Ap.Ala514Thr
missense
Exon 23 of 35NP_001839.2P12109

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL6A1
ENST00000361866.8
TSL:1 MANE Select
c.1540G>Ap.Ala514Thr
missense
Exon 23 of 35ENSP00000355180.3P12109
COL6A1
ENST00000866134.1
c.565-4391G>A
intron
N/AENSP00000536193.1
COL6A1
ENST00000683550.1
n.315G>A
non_coding_transcript_exon
Exon 4 of 5

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152156
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000776
AC:
19
AN:
244976
AF XY:
0.0000674
show subpopulations
Gnomad AFR exome
AF:
0.000128
Gnomad AMR exome
AF:
0.000320
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000550
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000301
AC:
44
AN:
1460010
Hom.:
0
Cov.:
34
AF XY:
0.0000289
AC XY:
21
AN XY:
726314
show subpopulations
African (AFR)
AF:
0.000120
AC:
4
AN:
33464
American (AMR)
AF:
0.000291
AC:
13
AN:
44680
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26112
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39666
South Asian (SAS)
AF:
0.0000812
AC:
7
AN:
86172
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52156
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.0000135
AC:
15
AN:
1111720
Other (OTH)
AF:
0.0000664
AC:
4
AN:
60284
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.456
Heterozygous variant carriers
0
3
6
10
13
16
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:
0.0000329
AC:
5
AN:
152156
Hom.:
0
Cov.:
34
AF XY:
0.0000404
AC XY:
3
AN XY:
74320
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41436
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
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:
68014
Other (OTH)
AF:
0.000478
AC:
1
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.555
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000450
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000661
AC:
8

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
-
1
Bethlem myopathy 1A (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.32
T
Eigen
Benign
-0.82
Eigen_PC
Benign
-0.77
FATHMM_MKL
Benign
0.36
N
LIST_S2
Uncertain
0.89
D
M_CAP
Uncertain
0.20
D
MetaRNN
Benign
0.13
T
MetaSVM
Benign
-0.47
T
MutationAssessor
Benign
0.69
N
PhyloP100
0.51
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
-0.40
N
REVEL
Benign
0.26
Sift
Benign
0.039
D
Sift4G
Benign
0.12
T
Polyphen
0.51
P
Vest4
0.26
MutPred
0.30
Gain of glycosylation at A514 (P = 0.0044)
MVP
0.41
MPC
0.52
ClinPred
0.045
T
GERP RS
3.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.094
gMVP
0.41
Mutation Taster
=96/4
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: rs760815168; hg19: chr21-47418050; API