21-46002013-T-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_001848.3(COL6A1):ā€‹c.2009T>Cā€‹(p.Met670Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000093 in 1,612,738 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 34)
Exomes š‘“: 0.0000082 ( 0 hom. )

Consequence

COL6A1
NM_001848.3 missense

Scores

1
18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.21
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 -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.046446502).
BP6
Variant 21-46002013-T-C is Benign according to our data. Variant chr21-46002013-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 542986.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL6A1NM_001848.3 linkuse as main transcriptc.2009T>C p.Met670Thr missense_variant 31/35 ENST00000361866.8 NP_001839.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL6A1ENST00000361866.8 linkuse as main transcriptc.2009T>C p.Met670Thr missense_variant 31/351 NM_001848.3 ENSP00000355180 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152174
Hom.:
0
Cov.:
34
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000408
AC:
1
AN:
244820
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
133046
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000921
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000822
AC:
12
AN:
1460446
Hom.:
0
Cov.:
35
AF XY:
0.00000826
AC XY:
6
AN XY:
726542
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000989
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152292
Hom.:
0
Cov.:
34
AF XY:
0.0000134
AC XY:
1
AN XY:
74458
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.0000936
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Bethlem myopathy 1A Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 11, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.086
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
18
DANN
Benign
0.79
DEOGEN2
Benign
0.16
T;T
Eigen
Benign
-0.86
Eigen_PC
Benign
-0.56
FATHMM_MKL
Benign
0.28
N
LIST_S2
Benign
0.71
T;T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.046
T;T
MetaSVM
Benign
-0.87
T
MutationAssessor
Benign
-1.0
N;.
MutationTaster
Benign
0.82
N
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
1.3
N;.
REVEL
Benign
0.16
Sift
Benign
1.0
T;.
Sift4G
Benign
1.0
T;T
Polyphen
0.0020
B;.
Vest4
0.26
MutPred
0.45
Gain of sheet (P = 0.039);.;
MVP
0.13
MPC
0.27
ClinPred
0.086
T
GERP RS
2.3
Varity_R
0.15
gMVP
0.60

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs776241591; hg19: chr21-47421927; API