19-43506883-G-A

Variant names:

• chr19-43506883-G-A
• NM_014297.5:c.732C>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Moderate BP6_Moderate BP7

The NM_014297.5(ETHE1):​c.732C>T​(p.Asn244Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,618 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ETHE1 NM_014297.5 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.63
• Publications: 0 publications found

Genes affected

ETHE1 (HGNC:23287): (ETHE1 persulfide dioxygenase) This gene encodes a member of the metallo beta-lactamase family of iron-containing proteins involved in the mitochondrial sulfide oxidation pathway. The encoded protein catalyzes the oxidation of a persulfide substrate to sulfite. Certain mutations in this gene cause ethylmalonic encephalopathy, an infantile metabolic disorder affecting the brain, gastrointestinal tract and peripheral vessels. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2016]

ETHE1 Gene-Disease associations (from GenCC):

• ethylmalonic encephalopathy

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
• Leigh syndrome

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.46).
• BP6: Variant 19-43506883-G-A is Benign according to our data. Variant chr19-43506883-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 2093181.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=1.63 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014297.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ETHE1	NM_014297.5	MANE Select	c.732C>T	p.Asn244Asn	synonymous	Exon 7 of 7	NP_055112.2
	ETHE1	NM_001320867.2		c.699C>T	p.Asn233Asn	synonymous	Exon 7 of 7	NP_001307796.1	A0A0S2Z580
	ETHE1	NM_001320869.2		c.438C>T	p.Asn146Asn	synonymous	Exon 5 of 5	NP_001307798.1	A0A0S2Z5N8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ETHE1	ENST00000292147.7	TSL:1 MANE Select	c.732C>T	p.Asn244Asn	synonymous	Exon 7 of 7	ENSP00000292147.1	O95571
	ETHE1	ENST00000880125.1		c.897C>T	p.Asn299Asn	synonymous	Exon 8 of 8	ENSP00000550184.1
	ETHE1	ENST00000970449.1		c.825C>T	p.Asn275Asn	synonymous	Exon 8 of 8	ENSP00000640508.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461618 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727116

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86240

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53364

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5684

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111928

Other (OTH) AF: 0.0000166 AC: 1 AN: 60380

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Ethylmalonic encephalopathy (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.46
CADD	Benign	8.3
DANN	Benign	0.85
PhyloP100		1.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

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

Other links and lift over

hg19: chr19-44011035; COSMIC: COSV52670225; COSMIC: COSV52670225;