16-1839351-GAGAA-G

Position:

• chr16-1839351-GAGAA-G

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_001163560.3(MEIOB):​c.1118_1121del​(p.Phe373SerfsTer6) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,802 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: MEIOB NM_001163560.3 frameshift
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 1.74

Genes affected

MEIOB (HGNC:28569): (meiosis specific with OB-fold) Predicted to enable chromatin binding activity; single-stranded DNA 3'-5' exodeoxyribonuclease activity; and single-stranded DNA binding activity. Predicted to be involved in double-strand break repair via homologous recombination; fertilization; and meiotic nuclear division. Predicted to be located in cytoplasm. Implicated in spermatogenic failure 22. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

FAHD1 (HGNC:14169): (fumarylacetoacetate hydrolase domain containing 1) Enables acetylpyruvate hydrolase activity; fumarylpyruvate hydrolase activity; and oxaloacetate decarboxylase activity. Located in cytosol; mitochondrion; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Pathogenic. Variant got 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 16-1839351-GAGAA-G is Pathogenic according to our data. Variant chr16-1839351-GAGAA-G is described in ClinVar as [Pathogenic]. Clinvar id is 1328958.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr16-1839351-GAGAA-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MEIOB	NM_001163560.3	c.1118_1121del	p.Phe373SerfsTer6	frameshift_variant	12/14	ENST00000325962.9	NP_001157032.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MEIOB	ENST00000325962.9	c.1118_1121del	p.Phe373SerfsTer6	frameshift_variant	12/14	5	NM_001163560.3	ENSP00000314484	P1
	ENST00000470044.5	c.497_500del	p.Phe166SerfsTer6	frameshift_variant	11/13	2		ENSP00000457416	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461802 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 727208

Gnomad4 AFR exome AF: 0.00

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: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Azoospermia Pathogenic:1

Pathogenic, no assertion criteria provided

case-control

Genetics of Infertility and Preimplantation Genetic Diagnosis, Centre Hospitalier Universitaire Grenoble Alpes

Dec 20, 2021

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Computational scores

Source: dbNSFP v4.3

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-1889352;