rs150938324

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM5PP3BP6_Moderate

The NM_001848.3(COL6A1):​c.1855G>A​(p.Val619Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000323 in 1,611,588 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V619L) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

COL6A1
NM_001848.3 missense

Scores

6
11
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.72
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 Uncertain_significance. Variant got 1 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr21-46001285-G-T is described in Lovd as [Likely_pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.799
BP6
Variant 21-46001285-G-A is Benign according to our data. Variant chr21-46001285-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 476420.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL6A1NM_001848.3 linkuse as main transcriptc.1855G>A p.Val619Met missense_variant 30/35 ENST00000361866.8 NP_001839.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL6A1ENST00000361866.8 linkuse as main transcriptc.1855G>A p.Val619Met missense_variant 30/351 NM_001848.3 ENSP00000355180 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152228
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000361
AC:
9
AN:
249362
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135068
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000145
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000336
AC:
49
AN:
1459360
Hom.:
0
Cov.:
32
AF XY:
0.0000303
AC XY:
22
AN XY:
726168
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.000201
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000324
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152228
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 testingLabcorp Genetics (formerly Invitae), LabcorpOct 26, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.87
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Pathogenic
0.19
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.76
D;T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Benign
0.038
N
LIST_S2
Uncertain
0.95
D;D
M_CAP
Pathogenic
0.35
D
MetaRNN
Pathogenic
0.80
D;D
MetaSVM
Uncertain
0.66
D
MutationAssessor
Uncertain
2.5
M;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.78
T
PROVEAN
Uncertain
-2.4
N;.
REVEL
Pathogenic
0.71
Sift
Uncertain
0.0010
D;.
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
D;.
Vest4
0.69
MVP
0.74
MPC
0.84
ClinPred
0.33
T
GERP RS
5.1
Varity_R
0.66
gMVP
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs150938324; hg19: chr21-47421199; COSMIC: COSV62611437; COSMIC: COSV62611437; API