rs752730608

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001849.4(COL6A2):​c.1294A>G​(p.Lys432Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000354 in 1,413,024 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K432N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

COL6A2
NM_001849.4 missense

Scores

2
11
6

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.88

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: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL6A2NM_001849.4 linkc.1294A>G p.Lys432Glu missense_variant Exon 15 of 28 ENST00000300527.9 NP_001840.3 P12110-1A0A384MDP3
COL6A2NM_058174.3 linkc.1294A>G p.Lys432Glu missense_variant Exon 15 of 28 NP_478054.2 P12110-2
COL6A2NM_058175.3 linkc.1294A>G p.Lys432Glu missense_variant Exon 15 of 28 NP_478055.2 P12110-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL6A2ENST00000300527.9 linkc.1294A>G p.Lys432Glu missense_variant Exon 15 of 28 1 NM_001849.4 ENSP00000300527.4 P12110-1
COL6A2ENST00000397763.6 linkc.1294A>G p.Lys432Glu missense_variant Exon 15 of 28 5 ENSP00000380870.1 P12110-2
COL6A2ENST00000409416.6 linkc.1294A>G p.Lys432Glu missense_variant Exon 14 of 27 5 ENSP00000387115.1 P12110-3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.0000283
AC:
5
AN:
176416
AF XY:
0.0000428
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000354
AC:
5
AN:
1413024
Hom.:
0
Cov.:
31
AF XY:
0.00000573
AC XY:
4
AN XY:
697970
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32860
American (AMR)
AF:
0.00
AC:
0
AN:
36910
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25236
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37864
South Asian (SAS)
AF:
0.0000622
AC:
5
AN:
80376
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48930
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5704
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1086552
Other (OTH)
AF:
0.00
AC:
0
AN:
58592
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.0000263
AC:
3

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.46
BayesDel_addAF
Uncertain
0.048
T
BayesDel_noAF
Uncertain
0.12
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.46
T;.;.;.
Eigen
Uncertain
0.22
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.67
T;T;.;T
M_CAP
Pathogenic
0.65
D
MetaRNN
Uncertain
0.63
D;D;D;D
MetaSVM
Uncertain
0.49
D
MutationAssessor
Benign
1.9
L;L;L;L
PhyloP100
2.9
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-1.5
N;N;N;N
REVEL
Pathogenic
0.66
Sift
Benign
0.094
T;D;D;D
Sift4G
Benign
0.23
T;T;T;T
Polyphen
1.0
D;D;D;D
Vest4
0.41
MutPred
0.43
Loss of methylation at K432 (P = 0.0023);Loss of methylation at K432 (P = 0.0023);Loss of methylation at K432 (P = 0.0023);Loss of methylation at K432 (P = 0.0023);
MVP
0.98
MPC
0.31
ClinPred
0.50
D
GERP RS
4.9
Varity_R
0.29
gMVP
0.61
Mutation Taster
=68/32
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: rs752730608; hg19: chr21-47539726; API