rs781038607

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_ModerateBP6_ModerateBP7

The NM_001848.3(COL6A1):​c.984C>T​(p.Asp328=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000248 in 1,091,068 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 0.00072 ( 0 hom., cov: 0)
Exomes 𝑓: 0.00024 ( 0 hom. )

Consequence

COL6A1
NM_001848.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.212
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 -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.38).
BP6
Variant 21-45990404-C-T is Benign according to our data. Variant chr21-45990404-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 476444.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.212 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL6A1NM_001848.3 linkuse as main transcriptc.984C>T p.Asp328= synonymous_variant 13/35 ENST00000361866.8 NP_001839.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL6A1ENST00000361866.8 linkuse as main transcriptc.984C>T p.Asp328= synonymous_variant 13/351 NM_001848.3 ENSP00000355180 P1

Frequencies

GnomAD3 genomes
AF:
0.000716
AC:
17
AN:
23736
Hom.:
0
Cov.:
0
show subpopulations
Gnomad AFR
AF:
0.000170
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000525
Gnomad ASJ
AF:
0.00151
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00139
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00105
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000543
AC:
11
AN:
202546
Hom.:
0
AF XY:
0.0000536
AC XY:
6
AN XY:
111852
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000114
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000106
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000238
AC:
254
AN:
1067332
Hom.:
0
Cov.:
49
AF XY:
0.000266
AC XY:
139
AN XY:
522642
show subpopulations
Gnomad4 AFR exome
AF:
0.000134
Gnomad4 AMR exome
AF:
0.0000335
Gnomad4 ASJ exome
AF:
0.0000723
Gnomad4 EAS exome
AF:
0.000487
Gnomad4 SAS exome
AF:
0.0000383
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000273
Gnomad4 OTH exome
AF:
0.000108
GnomAD4 genome
AF:
0.000716
AC:
17
AN:
23736
Hom.:
0
Cov.:
0
AF XY:
0.000796
AC XY:
9
AN XY:
11306
show subpopulations
Gnomad4 AFR
AF:
0.000170
Gnomad4 AMR
AF:
0.000525
Gnomad4 ASJ
AF:
0.00151
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00139
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00105
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000329
Hom.:
0
Bravo
AF:
0.000113

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

COL6A1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 27, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Bethlem myopathy 1A Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 19, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.38
CADD
Benign
3.9
DANN
Benign
0.93

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: rs781038607; hg19: chr21-47410318; COSMIC: COSV62611401; COSMIC: COSV62611401; API