chr21-46125627-G-C

Variant summary

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

The NM_001849.4(COL6A2):​c.1969+10G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000583 in 1,611,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000058 ( 0 hom. )

Consequence

COL6A2
NM_001849.4 intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.904
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 Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 21-46125627-G-C is Benign according to our data. Variant chr21-46125627-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 543023.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL6A2NM_001849.4 linkuse as main transcriptc.1969+10G>C intron_variant ENST00000300527.9
COL6A2NM_058174.3 linkuse as main transcriptc.1969+10G>C intron_variant ENST00000397763.6
COL6A2NM_058175.3 linkuse as main transcriptc.1969+10G>C intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL6A2ENST00000300527.9 linkuse as main transcriptc.1969+10G>C intron_variant 1 NM_001849.4 P1P12110-1
COL6A2ENST00000397763.6 linkuse as main transcriptc.1969+10G>C intron_variant 5 NM_058174.3 P12110-2
COL6A2ENST00000409416.6 linkuse as main transcriptc.1969+10G>C intron_variant 5 P12110-3
COL6A2ENST00000413758.1 linkuse as main transcriptc.640+10G>C intron_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152144
Hom.:
0
Cov.:
33
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000570
AC:
14
AN:
245442
Hom.:
0
AF XY:
0.0000747
AC XY:
10
AN XY:
133836
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:
0.000128
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000575
AC:
84
AN:
1459780
Hom.:
0
Cov.:
54
AF XY:
0.0000578
AC XY:
42
AN XY:
726170
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:
0.0000729
Gnomad4 OTH exome
AF:
0.0000332
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152144
Hom.:
0
Cov.:
33
AF XY:
0.0000673
AC XY:
5
AN XY:
74320
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:
0.000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000102

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 testingInvitaeDec 13, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
1.4
DANN
Benign
0.55

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: rs201259184; hg19: chr21-47545541; API