rs375452881

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_001848.3(COL6A1):​c.1378G>A​(p.Val460Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000509 in 1,609,644 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

COL6A1
NM_001848.3 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.202
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 -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.094302386).
BP6
Variant 21-45994209-G-A is Benign according to our data. Variant chr21-45994209-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 162528.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000243 (37/152268) while in subpopulation AFR AF= 0.000794 (33/41564). AF 95% confidence interval is 0.00058. There are 0 homozygotes in gnomad4. There are 15 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL6A1NM_001848.3 linkc.1378G>A p.Val460Ile missense_variant Exon 20 of 35 ENST00000361866.8 NP_001839.2 P12109A0A384P5H7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL6A1ENST00000361866.8 linkc.1378G>A p.Val460Ile missense_variant Exon 20 of 35 1 NM_001848.3 ENSP00000355180.3 P12109
COL6A1ENST00000683550.1 linkn.153G>A non_coding_transcript_exon_variant Exon 1 of 5

Frequencies

GnomAD3 genomes
AF:
0.000237
AC:
36
AN:
152150
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000772
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:
0.000956
GnomAD3 exomes
AF:
0.0000626
AC:
15
AN:
239582
Hom.:
0
AF XY:
0.0000462
AC XY:
6
AN XY:
129962
show subpopulations
Gnomad AFR exome
AF:
0.000801
Gnomad AMR exome
AF:
0.0000298
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000343
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000922
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000309
AC:
45
AN:
1457376
Hom.:
0
Cov.:
32
AF XY:
0.0000304
AC XY:
22
AN XY:
724496
show subpopulations
Gnomad4 AFR exome
AF:
0.000538
Gnomad4 AMR exome
AF:
0.0000454
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.0000353
Gnomad4 FIN exome
AF:
0.0000189
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.0000664
GnomAD4 genome
AF:
0.000243
AC:
37
AN:
152268
Hom.:
0
Cov.:
32
AF XY:
0.000201
AC XY:
15
AN XY:
74450
show subpopulations
Gnomad4 AFR
AF:
0.000794
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:
0.000946
Alfa
AF:
0.000172
Hom.:
0
Bravo
AF:
0.000193
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000661
AC:
8
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Aug 07, 2019
Revvity Omics, Revvity
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Bethlem myopathy 1A Benign:1
Feb 02, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
6.5
DANN
Benign
0.89
DEOGEN2
Benign
0.33
T;T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.082
N
LIST_S2
Benign
0.76
T;T
M_CAP
Benign
0.048
D
MetaRNN
Benign
0.094
T;T
MetaSVM
Benign
-0.36
T
MutationAssessor
Benign
0.81
L;.
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-0.43
N;.
REVEL
Benign
0.12
Sift
Benign
0.34
T;.
Sift4G
Benign
0.42
T;T
Polyphen
0.0030
B;.
Vest4
0.23
MVP
0.30
MPC
0.24
ClinPred
0.0028
T
GERP RS
1.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.029
gMVP
0.16

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: rs375452881; hg19: chr21-47414123; COSMIC: COSV62613978; API