21-46000812-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001848.3(COL6A1):​c.1822+45C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00671 in 1,612,290 control chromosomes in the GnomAD database, including 429 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.031 ( 207 hom., cov: 36)
Exomes 𝑓: 0.0042 ( 222 hom. )

Consequence

COL6A1
NM_001848.3 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.133
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 21-46000812-C-T is Benign according to our data. Variant chr21-46000812-C-T is described in ClinVar as [Benign]. Clinvar id is 93833.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.102 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL6A1NM_001848.3 linkuse as main transcriptc.1822+45C>T intron_variant ENST00000361866.8 NP_001839.2 P12109A0A384P5H7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL6A1ENST00000361866.8 linkuse as main transcriptc.1822+45C>T intron_variant 1 NM_001848.3 ENSP00000355180.3 P12109
COL6A1ENST00000466285.1 linkuse as main transcriptn.384C>T non_coding_transcript_exon_variant 3/33

Frequencies

GnomAD3 genomes
AF:
0.0311
AC:
4725
AN:
152170
Hom.:
208
Cov.:
36
show subpopulations
Gnomad AFR
AF:
0.104
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0144
Gnomad ASJ
AF:
0.00980
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.0348
Gnomad NFE
AF:
0.00128
Gnomad OTH
AF:
0.0258
GnomAD3 exomes
AF:
0.00942
AC:
2363
AN:
250872
Hom.:
85
AF XY:
0.00688
AC XY:
934
AN XY:
135722
show subpopulations
Gnomad AFR exome
AF:
0.105
Gnomad AMR exome
AF:
0.00912
Gnomad ASJ exome
AF:
0.0108
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.000425
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00139
Gnomad OTH exome
AF:
0.0104
GnomAD4 exome
AF:
0.00416
AC:
6069
AN:
1460002
Hom.:
222
Cov.:
37
AF XY:
0.00379
AC XY:
2754
AN XY:
726418
show subpopulations
Gnomad4 AFR exome
AF:
0.107
Gnomad4 AMR exome
AF:
0.00968
Gnomad4 ASJ exome
AF:
0.0106
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000487
Gnomad4 FIN exome
AF:
0.0000189
Gnomad4 NFE exome
AF:
0.000910
Gnomad4 OTH exome
AF:
0.0106
GnomAD4 genome
AF:
0.0311
AC:
4742
AN:
152288
Hom.:
207
Cov.:
36
AF XY:
0.0285
AC XY:
2125
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.104
Gnomad4 AMR
AF:
0.0143
Gnomad4 ASJ
AF:
0.00980
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.00128
Gnomad4 OTH
AF:
0.0255
Alfa
AF:
0.00439
Hom.:
5776

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 19, 2018This 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. -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Feb 10, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
1.7
DANN
Benign
0.89
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

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: rs7276098; hg19: chr21-47420726; API