NM_001848.3(COL6A1):c.1002+6_1002+89del AND Bethlem myopathy 1A

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Mar 26, 2022
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV002755877.3

Allele description [Variation Report for NM_001848.3(COL6A1):c.1002+6_1002+89del]

NM_001848.3(COL6A1):c.1002+6_1002+89del

Gene:

COL6A1:collagen type VI alpha 1 chain [Gene - OMIM - HGNC]

Variant type:

Deletion

Cytogenetic location:

21q22.3

Genomic location:

Preferred name:

NM_001848.3(COL6A1):c.1002+6_1002+89del

HGVS:

NC_000021.9:g.45990428_45990511del
NG_008674.1:g.13680_13763del
NM_001848.3:c.1002+6_1002+89delMANE SELECT
LRG_475:g.13680_13763del
NC_000021.8:g.47410341_47410424del
NC_000021.8:g.47410342_47410425del

Molecular consequence:

NM_001848.3:c.1002+6_1002+89del - intron variant - [Sequence Ontology: SO:0001627]

Condition(s)

Name:: Bethlem myopathy 1A
Synonyms:: Myopathy, benign congenital, with contractures; Bethlem myopathy 1
Identifiers:: MONDO: MONDO:0024530; MedGen: CN029274; Orphanet: 610; OMIM: 158810

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV003018896	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Mar 26, 2022)	germline	clinical testing	PubMed (3) [See all records that cite these PMIDs] 17576681, 9536098, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV003018896

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Mar 26, 2022)

germline

clinical testing

PubMed (3)
[See all records that cite these PMIDs]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Aberrant 5' splice sites in human disease genes: mutation pattern, nucleotide structure and comparison of computational tools that predict their utilization.

Buratti E, Chivers M, Královicová J, Romano M, Baralle M, Krainer AR, Vorechovsky I.

Nucleic Acids Res. 2007;35(13):4250-63. Epub 2007 Jun 18.

PubMed [citation]

PMID:: 17576681
PMCID:: PMC1934990

Statistical features of human exons and their flanking regions.

Zhang MQ.

Hum Mol Genet. 1998 May;7(5):919-32.

PubMed [citation]

PMID:: 9536098

See all PubMed Citations (3)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV003018896.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (3)

Description

This variant has not been reported in the literature in individuals affected with COL6A1-related conditions. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. This variant is present in population databases (no rsID available, gnomAD 0.004%). This sequence change falls in intron 13 of the COL6A1 gene. It does not directly change the encoded amino acid sequence of the COL6A1 protein. It affects a nucleotide within the consensus splice site.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Sep 29, 2024

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