NM_001848.3:c.1461+18C>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001848.3(COL6A1):c.1461+18C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.573 in 1,606,648 control chromosomes in the GnomAD database, including 265,516 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.58 ( 24267 hom., cov: 32)

Exomes 𝑓: 0.57 ( 241249 hom. )

Consequence

COL6A1
NM_001848.3 intron

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -1.72

Publications

13 publications found

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]

COL6A1 Gene-Disease associations (from GenCC):

collagen 6-related myopathy
Inheritance: AD, AR Classification: DEFINITIVE Submitted by: ClinGen
Bethlem myopathy 1A
Inheritance: AR, AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P
Ullrich congenital muscular dystrophy 1A
Inheritance: AD, AR Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
Bethlem myopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Ullrich congenital muscular dystrophy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

COL6A1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.83).

BP6

Variant 21-45997501-C-A is Benign according to our data. Variant chr21-45997501-C-A is described in ClinVar as Benign. ClinVar VariationId is 93815.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.732 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL6A1	NM_001848.3 link	c.1461+18C>A		intron_variant	Intron 21 of 34	ENST00000361866.8	NP_001839.2	P12109A0A384P5H7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
COL6A1	ENST00000361866.8 link	c.1461+18C>A		intron_variant	Intron 21 of 34	1	NM_001848.3	ENSP00000355180.3		P12109
COL6A1	ENST00000683550.1 link	n.236+18C>A		intron_variant	Intron 2 of 4

Frequencies

GnomAD3 genomes

AF:

0.576

AC:

85343

AN:

148084

Hom.:

24243

Cov.:

show subpopulations

Gnomad AFR

AF:

0.513

Gnomad AMI

AF:

0.633

Gnomad AMR

AF:

0.612

Gnomad ASJ

AF:

0.597

Gnomad EAS

AF:

0.753

Gnomad SAS

AF:

0.591

Gnomad FIN

AF:

0.645

Gnomad MID

AF:

0.565

Gnomad NFE

AF:

0.580

Gnomad OTH

AF:

0.580

GnomAD2 exomes

AF:

0.598

AC:

147745

AN:

247130

AF XY:

0.595

show subpopulations

Gnomad AFR exome

AF:

0.510

Gnomad AMR exome

AF:

0.636

Gnomad ASJ exome

AF:

0.589

Gnomad EAS exome

AF:

0.744

Gnomad FIN exome

AF:

0.638

Gnomad NFE exome

AF:

0.573

Gnomad OTH exome

AF:

0.610

GnomAD4 exome

AF:

0.573

AC:

835886

AN:

1458448

Hom.:

241249

Cov.:

AF XY:

0.573

AC XY:

416165

AN XY:

725684

show subpopulations

African (AFR)

AF:

0.495

AC:

16550

AN:

33434

American (AMR)

AF:

0.632

AC:

28255

AN:

44686

Ashkenazi Jewish (ASJ)

AF:

0.581

AC:

15181

AN:

26116

East Asian (EAS)

AF:

0.733

AC:

29103

AN:

39684

South Asian (SAS)

AF:

0.572

AC:

49334

AN:

86218

European-Finnish (FIN)

AF:

0.636

AC:

33159

AN:

52126

Middle Eastern (MID)

AF:

0.555

AC:

3177

AN:

5720

European-Non Finnish (NFE)

AF:

0.564

AC:

625837

AN:

1110164

Other (OTH)

AF:

0.585

AC:

35290

AN:

60300

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

19473

38946

58418

77891

97364

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

17480

34960

52440

69920

87400

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.576

AC:

85418

AN:

148200

Hom.:

24267

Cov.:

AF XY:

0.578

AC XY:

41811

AN XY:

72286

show subpopulations

African (AFR)

AF:

0.514

AC:

20660

AN:

40228

American (AMR)

AF:

0.612

AC:

9016

AN:

14740

Ashkenazi Jewish (ASJ)

AF:

0.597

AC:

2036

AN:

3410

East Asian (EAS)

AF:

0.752

AC:

3831

AN:

5094

South Asian (SAS)

AF:

0.591

AC:

2814

AN:

4760

European-Finnish (FIN)

AF:

0.645

AC:

6643

AN:

10306

Middle Eastern (MID)

AF:

0.559

AC:

161

AN:

288

European-Non Finnish (NFE)

AF:

0.580

AC:

38501

AN:

66428

Other (OTH)

AF:

0.580

AC:

1198

AN:

2064

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

1908

3817

5725

7634

9542

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

740

1480

2220

2960

3700

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.505

Hom.:

2811

Bravo

AF:

0.558

Asia WGS

AF:

0.661

AC:

2295

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:5

Oct 14, 2014

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 05, 2016

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Clinical Genetics, Academic Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Bethlem myopathy 1A

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.83

CADD

Benign

1.1

(source)

DANN

Benign

0.63

PhyloP100

-1.7

Mutation Taster

=100/0

polymorphism (auto)

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over