4-108014612-CTTTT-CTTTTTTT

Variant names:

• chr4-108014612-C-CTTT
• NM_005327.7:c.419+37_419+39dupTTT

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_005327.7(HADH):​c.419+37_419+39dupTTT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000178 in 1,124,902 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000018 (0 hom.)
• Consequence: HADH NM_005327.7 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.11

Genes affected

HADH (HGNC:4799): (hydroxyacyl-CoA dehydrogenase) This gene is a member of the 3-hydroxyacyl-CoA dehydrogenase gene family. The encoded protein functions in the mitochondrial matrix to catalyze the oxidation of straight-chain 3-hydroxyacyl-CoAs as part of the beta-oxidation pathway. Its enzymatic activity is highest with medium-chain-length fatty acids. Mutations in this gene cause one form of familial hyperinsulinemic hypoglycemia. The human genome contains a related pseudogene of this gene on chromosome 15. [provided by RefSeq, May 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HADH	NM_005327.7	c.419+37_419+39dupTTT		intron_variant	Intron 3 of 7	ENST00000309522.8	NP_005318.6
HADH	NM_001184705.4	c.419+37_419+39dupTTT		intron_variant	Intron 3 of 8		NP_001171634.3
HADH	NM_001331027.2	c.431+37_431+39dupTTT		intron_variant	Intron 3 of 7		NP_001317956.2
HADH	XR_007096395.1	n.463+37_463+39dupTTT		intron_variant	Intron 3 of 7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HADH	ENST00000309522.8	c.419+24_419+25insTTT		intron_variant	Intron 3 of 7	1	NM_005327.7	ENSP00000312288.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000178 AC: 2 AN: 1124902 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 563842

Gnomad4 AFR exome AF: 0.0000393

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000118

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-108935768;