NM_000116.5(TAFAZZIN):c.238+6C>T AND 3-Methylglutaconic aciduria type 2

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Oct 5, 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:: RCV000818250.5

Allele description [Variation Report for NM_000116.5(TAFAZZIN):c.238+6C>T]

NM_000116.5(TAFAZZIN):c.238+6C>T

Gene:

TAFAZZIN:tafazzin, phospholipid-lysophospholipid transacylase [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

Xq28

Genomic location:

Preferred name:

NM_000116.5(TAFAZZIN):c.238+6C>T

HGVS:

NC_000023.11:g.154412220C>T
NG_009634.1:g.5681C>T
NG_012884.2:g.4869G>A
NM_000116.5:c.238+6C>TMANE SELECT
NM_001303465.2:c.292+6C>T
NM_181311.4:c.238+6C>T
NM_181312.4:c.238+6C>T
NM_181313.4:c.238+6C>T
LRG_131t1:c.238+6C>T
NC_000023.10:g.153640557C>T
NM_000116.4:c.238+6C>T

Links:

dbSNP: rs781786197

NCBI 1000 Genomes Browser:

rs781786197

Molecular consequence:

NM_000116.5:c.238+6C>T - intron variant - [Sequence Ontology: SO:0001627]
NM_001303465.2:c.292+6C>T - intron variant - [Sequence Ontology: SO:0001627]
NM_181311.4:c.238+6C>T - intron variant - [Sequence Ontology: SO:0001627]
NM_181312.4:c.238+6C>T - intron variant - [Sequence Ontology: SO:0001627]
NM_181313.4:c.238+6C>T - intron variant - [Sequence Ontology: SO:0001627]

Condition(s)

Name:: 3-Methylglutaconic aciduria type 2 (BTHS)
Synonyms:: Barth syndrome; 3-methylglutaconicaciduria type II; MGA type II; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0010543; MedGen: C0574083; Orphanet: 111; OMIM: 302060

Recent activity

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SRX24948429 (1)
SRA
Mus musculus G elongation factor, mitochondrial 2 (Gfm2), transcript variant 3, ...
Mus musculus G elongation factor, mitochondrial 2 (Gfm2), transcript variant 3, mRNA; nuclear gene for mitochondrial product
gi|407228372|ref|NM_001271463.1|

Nucleotide

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000958851	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Oct 5, 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

SCV000958851

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Oct 5, 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, SCV000958851.4

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

Description

This sequence change falls in intron 2 of the TAZ gene. It does not directly change the encoded amino acid sequence of the TAZ protein. It affects a nucleotide within the consensus splice site. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with TAZ-related conditions. ClinVar contains an entry for this variant (Variation ID: 660945). 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 is not likely to affect RNA splicing. 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.

#	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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