7-92517754-GA-G

Variant names:

• chr7-92517754-GA-G
• rs1554375511
• NM_000466.3:c.760delT

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_000466.3(PEX1):​c.760delT​(p.Ser254ProfsTer14) variant causes a frameshift change. The variant allele was found at a frequency of 0.000000692 in 1,444,274 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: PEX1 NM_000466.3 frameshift
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.38
• Publications: 0 publications found

Genes affected

PEX1 (HGNC:8850): (peroxisomal biogenesis factor 1) This gene encodes a member of the AAA ATPase family, a large group of ATPases associated with diverse cellular activities. This protein is cytoplasmic but is often anchored to a peroxisomal membrane where it forms a heteromeric complex and plays a role in the import of proteins into peroxisomes and peroxisome biogenesis. Mutations in this gene have been associated with complementation group 1 peroxisomal disorders such as neonatal adrenoleukodystrophy, infantile Refsum disease, and Zellweger syndrome. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Sep 2013]

PEX1 Gene-Disease associations (from GenCC):

• peroxisome biogenesis disorder

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• peroxisome biogenesis disorder 1A (Zellweger)

  Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health, Ambry Genetics
• Heimler syndrome 1

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: PanelApp Australia, G2P, Ambry Genetics
• peroxisome biogenesis disorder 1B

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• Zellweger spectrum disorders

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000244055 (HGNC:):

ACMG classification

Our verdict: Pathogenic. The variant received 10 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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000466.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PEX1	NM_000466.3	MANE Select	c.760delT	p.Ser254ProfsTer14	frameshift	Exon 5 of 24	NP_000457.1
	PEX1	NM_001282677.2		c.760delT	p.Ser254ProfsTer14	frameshift	Exon 5 of 23	NP_001269606.1
	PEX1	NM_001282678.2		c.136delT	p.Ser46ProfsTer14	frameshift	Exon 5 of 24	NP_001269607.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PEX1	ENST00000248633.9	TSL:1 MANE Select	c.760delT	p.Ser254ProfsTer14	frameshift	Exon 5 of 24	ENSP00000248633.4
	PEX1	ENST00000428214.5	TSL:1	c.760delT	p.Ser254ProfsTer14	frameshift	Exon 5 of 23	ENSP00000394413.1
	PEX1	ENST00000484913.5	TSL:2	n.799delT		non_coding_transcript_exon	Exon 5 of 24

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.92e-7 AC: 1 AN: 1444274 Hom.: 0 Cov.: 33 AF XY: 0.00000139 AC XY: 1 AN XY: 717472

African (AFR) AF: 0.0000310 AC: 1 AN: 32252

American (AMR) AF: 0.00 AC: 0 AN: 41006

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25300

East Asian (EAS) AF: 0.00 AC: 0 AN: 39552

South Asian (SAS) AF: 0.00 AC: 0 AN: 83316

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52852

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5656

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1104796

Other (OTH) AF: 0.00 AC: 0 AN: 59544

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		4.4

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: rs1554375511; hg19: chr7-92147068;