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rs757422397

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_001848.3(COL6A1):c.2705G>A(p.Ser902Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000026 in 1,612,946 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 Benign (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 35)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

COL6A1
NM_001848.3 missense

Scores

1
18

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0400
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 -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.035184324).
BP6
Variant 21-46003631-G-A is Benign according to our data. Variant chr21-46003631-G-A is described in ClinVar as [Benign]. Clinvar id is 476429.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL6A1NM_001848.3 linkuse as main transcriptc.2705G>A p.Ser902Asn missense_variant 35/35 ENST00000361866.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL6A1ENST00000361866.8 linkuse as main transcriptc.2705G>A p.Ser902Asn missense_variant 35/351 NM_001848.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152268
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000413
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000444
AC:
11
AN:
247668
Hom.:
0
AF XY:
0.0000668
AC XY:
9
AN XY:
134766
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000902
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000274
AC:
40
AN:
1460678
Hom.:
0
Cov.:
59
AF XY:
0.0000385
AC XY:
28
AN XY:
726670
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000417
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152268
Hom.:
0
Cov.:
35
AF XY:
0.0000269
AC XY:
2
AN XY:
74382
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000413
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000412
AC:
5

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Bethlem myopathy 1A Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeNov 18, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.56
Cadd
Benign
4.0
Dann
Benign
0.91
DEOGEN2
Benign
0.20
T;T
Eigen
Benign
-0.99
Eigen_PC
Benign
-0.96
FATHMM_MKL
Benign
0.042
N
LIST_S2
Benign
0.57
T;T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.035
T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.86
L;.
MutationTaster
Benign
1.0
N
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.40
N;.
REVEL
Benign
0.090
Sift
Benign
0.55
T;.
Sift4G
Benign
0.48
T;T
Polyphen
0.0
B;.
Vest4
0.042
MutPred
0.43
Loss of loop (P = 0.2237);.;
MVP
0.45
MPC
0.22
ClinPred
0.0088
T
GERP RS
2.1
Varity_R
0.079
gMVP
0.34

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: rs757422397; hg19: chr21-47423545; API