chr21-46112587-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The ENST00000300527.9(COL6A2):​c.714+10G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000683 in 1,611,038 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000071 ( 1 hom. )

Consequence

COL6A2
ENST00000300527.9 intron

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.362
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 21-46112587-G-A is Benign according to our data. Variant chr21-46112587-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 543030.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr21-46112587-G-A is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL6A2NM_001849.4 linkuse as main transcriptc.714+10G>A intron_variant ENST00000300527.9 NP_001840.3
COL6A2NM_058174.3 linkuse as main transcriptc.714+10G>A intron_variant ENST00000397763.6 NP_478054.2
COL6A2NM_058175.3 linkuse as main transcriptc.714+10G>A intron_variant NP_478055.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL6A2ENST00000300527.9 linkuse as main transcriptc.714+10G>A intron_variant 1 NM_001849.4 ENSP00000300527 P1P12110-1
COL6A2ENST00000397763.6 linkuse as main transcriptc.714+10G>A intron_variant 5 NM_058174.3 ENSP00000380870 P12110-2
COL6A2ENST00000409416.6 linkuse as main transcriptc.714+10G>A intron_variant 5 ENSP00000387115 P12110-3
COL6A2ENST00000460886.1 linkuse as main transcriptn.160+10G>A intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
151754
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000969
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000698
AC:
17
AN:
243592
Hom.:
0
AF XY:
0.0000900
AC XY:
12
AN XY:
133286
show subpopulations
Gnomad AFR exome
AF:
0.000199
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000547
Gnomad SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000368
Gnomad OTH exome
AF:
0.000501
GnomAD4 exome
AF:
0.0000713
AC:
104
AN:
1459284
Hom.:
1
Cov.:
34
AF XY:
0.0000758
AC XY:
55
AN XY:
725976
show subpopulations
Gnomad4 AFR exome
AF:
0.000269
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000432
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000395
AC:
6
AN:
151754
Hom.:
0
Cov.:
32
AF XY:
0.0000405
AC XY:
3
AN XY:
74088
show subpopulations
Gnomad4 AFR
AF:
0.0000969
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000180
Hom.:
0
Bravo
AF:
0.0000642

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Bethlem myopathy 1A Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpApr 03, 2023- -
not provided Benign:1
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
0.26
DANN
Benign
0.78

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: rs777394169; hg19: chr21-47532501; COSMIC: COSV56013366; COSMIC: COSV56013366; API