NM_000182.5(HADHA):c.1361_1364dup (p.Lys455delinsAsnTer) AND multiple conditions

Germline classification:: Pathogenic (1 submission)
Last evaluated:: Jan 22, 2024
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:: RCV003785585.2

Allele description [Variation Report for NM_000182.5(HADHA):c.1361_1364dup (p.Lys455delinsAsnTer)]

NM_000182.5(HADHA):c.1361_1364dup (p.Lys455delinsAsnTer)

Genes:

GAREM2:GRB2 associated regulator of MAPK1 subtype 2 [Gene - OMIM - HGNC]
HADHA:hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit alpha [Gene - OMIM - HGNC]

Variant type:

Duplication

Cytogenetic location:

2p23.3

Genomic location:

Preferred name:

NM_000182.5(HADHA):c.1361_1364dup (p.Lys455delinsAsnTer)

HGVS:

NC_000002.12:g.26201177_26201180dup
NG_007121.2:g.48442_48445dup
NM_000182.5:c.1361_1364dupMANE SELECT
NP_000173.2:p.Lys455delinsAsnTer
LRG_747t1:c.1361_1364dup
LRG_747:g.48442_48445dup
LRG_747p1:p.Lys455delinsAsnTer
NC_000002.11:g.26424045_26424046insTTAA
NC_000002.11:g.26424046_26424049dup

Molecular consequence:

NM_000182.5:c.1361_1364dup - nonsense - [Sequence Ontology: SO:0001587]

Condition(s)

Name:: Mitochondrial trifunctional protein deficiency
Identifiers:: MONDO: MONDO:0012172; MedGen: C1969443; Orphanet: 746; OMIM: PS609015

Name:: Long chain 3-hydroxyacyl-CoA dehydrogenase deficiency
Synonyms:: Deficiency of long-chain 3-hydroxyacyl-coenzyme A dehydrogenase; LCHAD Deficiency
Identifiers:: MONDO: MONDO:0012173; MedGen: C3711645; Orphanet: 5; OMIM: 609016

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV004605214	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Pathogenic (Jan 22, 2024)	germline	clinical testing	PubMed (5) [See all records that cite these PMIDs] 7738175, 21103935, 21549624, 22459206, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV004605214

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Pathogenic
(Jan 22, 2024)

germline

clinical testing

PubMed (5)
[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

Two alpha subunit donor splice site mutations cause human trifunctional protein deficiency.

Brackett JC, Sims HF, Rinaldo P, Shapiro S, Powell CK, Bennett MJ, Strauss AW.

J Clin Invest. 1995 May;95(5):2076-82.

PubMed [citation]

PMID:: 7738175
PMCID:: PMC295799

Urgent metabolic service improves survival in long-chain 3-hydroxyacyl-CoA dehydrogenase (LCHAD) deficiency detected by symptomatic identification and pilot newborn screening.

Sykut-Cegielska J, Gradowska W, Piekutowska-Abramczuk D, Andresen BS, Olsen RK, Ołtarzewski M, Pronicki M, Pajdowska M, Bogdańska A, Jabłońska E, Radomyska B, Kuśmierska K, Krajewska-Walasek M, Gregersen N, Pronicka E.

J Inherit Metab Dis. 2011 Feb;34(1):185-95. doi: 10.1007/s10545-010-9244-x. Epub 2010 Nov 20.

PubMed [citation]

PMID:: 21103935

See all PubMed Citations (5)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV004605214.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (5)

Description

This sequence change creates a premature translational stop signal (p.Lys455Asnfs*2) in the HADHA gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in HADHA are known to be pathogenic (PMID: 7738175, 21103935, 21549624, 22459206). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with HADHA-related conditions. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic.

#	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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