chr2-26201139-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000182.5(HADHA):c.1392+10G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0041 in 1,603,088 control chromosomes in the GnomAD database, including 220 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.021 ( 119 hom., cov: 32)

Exomes 𝑓: 0.0023 ( 101 hom. )

Consequence

HADHA
NM_000182.5 intron

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 0.699

Variant links:

Genes affected

HADHA (HGNC:4801): (hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit alpha) This gene encodes the alpha subunit of the mitochondrial trifunctional protein, which catalyzes the last three steps of mitochondrial beta-oxidation of long chain fatty acids. The mitochondrial membrane-bound heterocomplex is composed of four alpha and four beta subunits, with the alpha subunit catalyzing the 3-hydroxyacyl-CoA dehydrogenase and enoyl-CoA hydratase activities. Mutations in this gene result in trifunctional protein deficiency or LCHAD deficiency. The genes of the alpha and beta subunits of the mitochondrial trifunctional protein are located adjacent to each other in the human genome in a head-to-head orientation. [provided by RefSeq, Jul 2008]

HADHA links:

GAREM2 (HGNC:27172): (GRB2 associated regulator of MAPK1 subtype 2)

GAREM2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.77).

BP6

Variant 2-26201139-C-T is Benign according to our data. Variant chr2-26201139-C-T is described in ClinVar as [Benign]. Clinvar id is 203738.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0701 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HADHA	NM_000182.5 link	c.1392+10G>A		intron_variant	Intron 13 of 19	ENST00000380649.8	NP_000173.2	P40939-1E9KL44
GAREM2	XM_011532567.4 link	c.1684-1094C>T		intron_variant	Intron 6 of 6		XP_011530869.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HADHA	ENST00000380649.8 link	c.1392+10G>A		intron_variant	Intron 13 of 19	1	NM_000182.5	ENSP00000370023.3		P40939-1

Frequencies

GnomAD3 genomes

AF:

0.0209

AC:

3173

AN:

152168

Hom.:

119

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0723

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00759

Gnomad ASJ

AF:

0.00374

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000294

Gnomad OTH

AF:

0.0134

GnomAD3 exomes

AF:

0.00592

AC:

1488

AN:

251230

Hom.:

AF XY:

0.00437

AC XY:

593

AN XY:

135814

show subpopulations

Gnomad AFR exome

AF:

0.0770

Gnomad AMR exome

AF:

0.00339

Gnomad ASJ exome

AF:

0.00615

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000196

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000291

Gnomad OTH exome

AF:

0.00326

GnomAD4 exome

AF:

0.00233

AC:

3383

AN:

1450802

Hom.:

101

Cov.:

AF XY:

0.00196

AC XY:

1414

AN XY:

722430

show subpopulations

Gnomad4 AFR exome

AF:

0.0779

Gnomad4 AMR exome

AF:

0.00374

Gnomad4 ASJ exome

AF:

0.00545

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000244

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000127

Gnomad4 OTH exome

AF:

0.00513

GnomAD4 genome

AF:

0.0209

AC:

3182

AN:

152286

Hom.:

119

Cov.:

AF XY:

0.0198

AC XY:

1471

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.0723

Gnomad4 AMR

AF:

0.00758

Gnomad4 ASJ

AF:

0.00374

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000294

Gnomad4 OTH

AF:

0.0132

Alfa

AF:

0.0165

Hom.:

Bravo

AF:

0.0240

Asia WGS

AF:

0.00231

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Oct 06, 2014

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Mar 23, 2020

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: HADHA c.1392+10G>A alters a non-conserved nucleotide located close to a canonical splice site and therefore could affect mRNA splicing, leading to a significantly altered protein sequence. 4/4 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.0059 in 251230 control chromosomes, predominantly at a frequency of 0.077 within the African or African-American subpopulation in the gnomAD database, including 45 homozygotes. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 40 fold of the estimated maximal expected allele frequency for a pathogenic variant in HADHA causing Long Chain 3-Hydroxyacyl-CoA Dehydrogenase Deficiency phenotype (0.0019), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. To our knowledge, no occurrence of c.1392+10G>A in individuals affected with Long Chain 3-Hydroxyacyl-CoA Dehydrogenase Deficiency and no experimental evidence demonstrating its impact on protein function have been reported. Two ClinVar submitters (evaluation after 2014) cite the variant as benign and likely benign. Based on the evidence outlined above, the variant was classified as benign. -

Long chain 3-hydroxyacyl-CoA dehydrogenase deficiency

Benign:2

Sep 16, 2020

Natera, Inc.

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided

Benign:2

May 29, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Mitochondrial trifunctional protein deficiency

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Mitochondrial trifunctional protein deficiency;C3711645:Long chain 3-hydroxyacyl-CoA dehydrogenase deficiency

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.77

CADD

Benign

DANN

Benign

0.56

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over