rs376368468

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PP3_ModerateBP6

The NM_001849.4(COL6A2):​c.3047G>A​(p.Arg1016His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000655 in 1,603,160 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000070 ( 0 hom. )

Consequence

COL6A2
NM_001849.4 missense

Scores

4
13
2

Clinical Significance

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

Conservation

PhyloP100: 7.94
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.881
BP6
Variant 21-46132539-G-A is Benign according to our data. Variant chr21-46132539-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 476484.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL6A2NM_001849.4 linkuse as main transcriptc.3047G>A p.Arg1016His missense_variant 28/28 ENST00000300527.9 NP_001840.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL6A2ENST00000300527.9 linkuse as main transcriptc.3047G>A p.Arg1016His missense_variant 28/281 NM_001849.4 ENSP00000300527 P1P12110-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152240
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD3 exomes
AF:
0.0000305
AC:
7
AN:
229730
Hom.:
0
AF XY:
0.0000475
AC XY:
6
AN XY:
126388
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000558
Gnomad SAS exome
AF:
0.0000668
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000391
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000703
AC:
102
AN:
1450920
Hom.:
0
Cov.:
34
AF XY:
0.0000623
AC XY:
45
AN XY:
721984
show subpopulations
Gnomad4 AFR exome
AF:
0.0000599
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000757
Gnomad4 SAS exome
AF:
0.0000582
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000801
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152240
Hom.:
0
Cov.:
34
AF XY:
0.0000269
AC XY:
2
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000626
Hom.:
0
Bravo
AF:
0.0000189
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000332
AC:
4

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxFeb 10, 2022In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Bethlem myopathy 1A Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 01, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Uncertain
0.060
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.57
D
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.96
D
M_CAP
Pathogenic
0.39
D
MetaRNN
Pathogenic
0.88
D
MetaSVM
Uncertain
0.23
D
MutationAssessor
Uncertain
2.4
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.73
T
PROVEAN
Uncertain
-3.6
D
REVEL
Pathogenic
0.73
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0050
D
Polyphen
1.0
D
Vest4
0.82
MVP
0.82
MPC
0.68
ClinPred
0.87
D
GERP RS
4.4
Varity_R
0.55
gMVP
0.93

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs376368468; hg19: chr21-47552453; COSMIC: COSV99385583; COSMIC: COSV99385583; API