rs376665722

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.

The ENST00000300527.9(COL6A2):​c.2711C>T​(p.Ala904Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000183 in 1,583,162 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A904T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00019 ( 1 hom. )

Consequence

COL6A2
ENST00000300527.9 missense

Scores

1
8
10

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 1.30
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 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL6A2NM_001849.4 linkuse as main transcriptc.2711C>T p.Ala904Val 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.2711C>T p.Ala904Val missense_variant 28/281 NM_001849.4 ENSP00000300527 P1P12110-1

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152192
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000471
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000336
AC:
66
AN:
196642
Hom.:
1
AF XY:
0.000242
AC XY:
26
AN XY:
107228
show subpopulations
Gnomad AFR exome
AF:
0.000175
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000142
Gnomad SAS exome
AF:
0.0000751
Gnomad FIN exome
AF:
0.000495
Gnomad NFE exome
AF:
0.000614
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000189
AC:
271
AN:
1430970
Hom.:
1
Cov.:
33
AF XY:
0.000166
AC XY:
118
AN XY:
709750
show subpopulations
Gnomad4 AFR exome
AF:
0.0000307
Gnomad4 AMR exome
AF:
0.0000496
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000532
Gnomad4 SAS exome
AF:
0.0000482
Gnomad4 FIN exome
AF:
0.000674
Gnomad4 NFE exome
AF:
0.000189
Gnomad4 OTH exome
AF:
0.000354
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152192
Hom.:
0
Cov.:
34
AF XY:
0.000121
AC XY:
9
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.000121
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000471
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.000956
Alfa
AF:
0.000112
Hom.:
0
Bravo
AF:
0.000147
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000350
AC:
3
ExAC
AF:
0.000640
AC:
77

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:3
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityAug 16, 2022- -
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Nov 29, 2016- -
Uncertain significance, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesFeb 14, 2020- -
Bethlem myopathy 1A Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 04, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.12
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.32
T
Eigen
Uncertain
0.25
Eigen_PC
Benign
0.15
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Benign
0.64
T
M_CAP
Pathogenic
0.29
D
MetaRNN
Uncertain
0.44
T
MetaSVM
Uncertain
0.33
D
MutationAssessor
Uncertain
2.1
M
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.6
N
REVEL
Uncertain
0.63
Sift
Uncertain
0.026
D
Sift4G
Benign
0.086
T
Polyphen
1.0
D
Vest4
0.63
MVP
0.93
MPC
0.59
ClinPred
0.078
T
GERP RS
4.2
Varity_R
0.18
gMVP
0.69

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: rs376665722; hg19: chr21-47552117; API