chr1-2406734-GC-G

Variant names:

• chr1-2406734-GC-G
• rs1553231820
• NM_002617.4:c.761delG

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_002617.4(PEX10):​c.761delG​(p.Gly254AlafsTer90) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. G254G) has been classified as Uncertain significance. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 34)
• Consequence: PEX10 NM_002617.4 frameshift
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4
• Conservation: PhyloP100: -0.0230
• Publications: 0 publications found

Genes affected

PEX10 (HGNC:8851): (peroxisomal biogenesis factor 10) This gene encodes a protein involved in import of peroxisomal matrix proteins. This protein localizes to the peroxisomal membrane. Mutations in this gene result in phenotypes within the Zellweger spectrum of peroxisomal biogenesis disorders, ranging from neonatal adrenoleukodystrophy to Zellweger syndrome. Alternative splicing results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

PEX10 Gene-Disease associations (from GenCC):

• peroxisome biogenesis disorder

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• peroxisome biogenesis disorder 6A (Zellweger)

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Myriad Women’s Health, Ambry Genetics, G2P
• peroxisome biogenesis disorder 6B

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• autosomal recessive ataxia due to PEX10 deficiency

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Zellweger spectrum disorders

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 18 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 1-2406734-GC-G is Pathogenic according to our data. Variant chr1-2406734-GC-G is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 554630.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002617.4. 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
	PEX10	NM_002617.4	MANE Select	c.761delG	p.Gly254AlafsTer90	frameshift	Exon 4 of 6	NP_002608.1	O60683-1
	PEX10	NM_153818.2		c.821delG	p.Gly274AlafsTer90	frameshift	Exon 4 of 6	NP_722540.1	O60683-2
	PEX10	NM_001374425.1		c.818delG	p.Gly273AlafsTer90	frameshift	Exon 4 of 6	NP_001361354.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PEX10	ENST00000447513.7	TSL:1 MANE Select	c.761delG	p.Gly254AlafsTer90	frameshift	Exon 4 of 6	ENSP00000407922.2	O60683-1
	PEX10	ENST00000288774.8	TSL:1	c.821delG	p.Gly274AlafsTer90	frameshift	Exon 4 of 6	ENSP00000288774.3	O60683-2
	PEX10	ENST00000874692.1		c.818delG	p.Gly273AlafsTer90	frameshift	Exon 4 of 6	ENSP00000544751.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 34

ClinVar

ClinVar submissions

Significance: Pathogenic/Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	Peroxisome biogenesis disorder 6A (Zellweger);C3553948:Peroxisome biogenesis disorder 6B (2)
1	-	-	not provided (1)
1	-	-	Peroxisome biogenesis disorder, complementation group 7 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-0.023
Mutation Taster		=2/198	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1553231820; hg19: chr1-2338173;