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GeneBe

rs755340450

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP6

The NM_001848.3(COL6A1):c.2768T>G(p.Val923Gly) variant causes a missense change. The variant allele was found at a frequency of 0.0000384 in 1,612,984 control chromosomes in the GnomAD database, including 3 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 35)
Exomes 𝑓: 0.000042 ( 3 hom. )

Consequence

COL6A1
NM_001848.3 missense

Scores

3
13
3

Clinical Significance

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

Conservation

PhyloP100: 4.32
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BP6
Variant 21-46003694-T-G is Benign according to our data. Variant chr21-46003694-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 574905.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL6A1NM_001848.3 linkuse as main transcriptc.2768T>G p.Val923Gly missense_variant 35/35 ENST00000361866.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL6A1ENST00000361866.8 linkuse as main transcriptc.2768T>G p.Val923Gly missense_variant 35/351 NM_001848.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152258
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000723
AC:
18
AN:
249104
Hom.:
0
AF XY:
0.000126
AC XY:
17
AN XY:
135304
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 SAS exome
AF:
0.000589
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000418
AC:
61
AN:
1460726
Hom.:
3
Cov.:
45
AF XY:
0.0000729
AC XY:
53
AN XY:
726692
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000707
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152258
Hom.:
0
Cov.:
35
AF XY:
0.0000134
AC XY:
1
AN XY:
74388
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000742
AC:
9

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 testingRevvity Omics, RevvityApr 26, 2021- -
Bethlem myopathy 1A Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeAug 15, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.46
BayesDel_addAF
Benign
-0.0070
T
BayesDel_noAF
Uncertain
0.11
Cadd
Benign
22
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.70
D;T
Eigen
Uncertain
0.27
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.52
T;T
M_CAP
Pathogenic
0.43
D
MetaRNN
Uncertain
0.66
D;D
MetaSVM
Uncertain
-0.12
T
MutationAssessor
Uncertain
2.7
M;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.71
T
PROVEAN
Uncertain
-3.6
D;.
REVEL
Pathogenic
0.74
Sift
Uncertain
0.0010
D;.
Sift4G
Pathogenic
0.0010
D;D
Polyphen
0.80
P;.
Vest4
0.58
MutPred
0.69
Loss of stability (P = 0.0272);.;
MVP
0.81
MPC
0.72
ClinPred
0.51
D
GERP RS
4.7
Varity_R
0.76
gMVP
0.62

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: rs755340450; hg19: chr21-47423608; COSMIC: COSV62615475; COSMIC: COSV62615475; API