Intellectual disability - microarray and sequencing
Gene: PEX6The mode of inheritance of this gene has been updated to 'BOTH monoallelic and biallelic, autosomal or pseudoautosomal' following NHS Genomic Medicine Service approval.Created: 30 Jan 2023, 5:50 p.m. | Last Modified: 30 Jan 2023, 5:50 p.m.
Panel Version: 4.53
Comment on mode of inheritance: The Q1_22_MOI tag has been added to this gene. The mode of inheritance for PEX6 should be set to: BOTH monoallelic and biallelic, autosomal or pseudoautosomal, in order to detect the dominant Peroxisome biogenesis disorder 4B (OMIM:614863). Incomplete penetrance has been noted, in order to highlight that unaffected parents may also carry rs61753230.Created: 1 Apr 2022, 4:13 p.m. | Last Modified: 1 Apr 2022, 4:13 p.m.
Panel Version: 3.1533
For Peroxisome biogenesis disorder 4B (OMIM:614863), Falkenberg et al (PMID: 29220678) has identified Allelic Expression Imbalance (AEI) as a mechanism responsible for the condition. Affected patients (7 unrelated cases) were monoallelic for rs61753230 (c.2578C>T, p.Arg860Trp) and rs144286892 (c.∗442_445 delTAAA), with these variants being on the same chromosome (cis). It would appear that rs144286892 causes the over expression of the allele that it is on, resulting in over expression of rs61753230. The unaffected parents analysed were monoallelic for rs61753230 and biallelic for rs144286892, resulting in overexpression of both rs61753230 and wild type alleles (PMID: 29220678). Experimental evidence revealed that rs61753230 has a dominant-negative effect on the function of the PEX1- PEX6 complex in peroxisomal matrix protein import (PMID: 29220678).Created: 1 Apr 2022, 4:08 p.m. | Last Modified: 1 Apr 2022, 4:08 p.m.
Panel Version: 3.1530
Mode of inheritance
BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mode of pathogenicity
Other
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
ZELLWEGER SYNDROME (ZWS)
Publications
This is a pertinent gene from the NIHR BioResource - Rare Diseases Study (NIHRBR-RD) BRIDGE Study : SPEED (Specialist Pathology: Evaluating Exomes in Diagnostics) which covers epilepsies, movement and microcephaly disorders, this gene is on the SPEED_NEURO_20170705 gene list. Evidences used for SPEED NEURO gene list: in_ddg2p_20141118_conf;in_ddg2p_20141118_conf;in_ddg2p_201507;in_ddg2p_201507_conf;in_ddg2p_2_4_2017;in_ddg2p_2_4_2017_conf;in_movement_disorder_list;in_UKGTN_v12 . Main mutation mechanism : Loss of functionCreated: 27 Jul 2017, 7:59 p.m.
Evidences key, gene present in following gene lists and main mutation mechanism : ddg2p_20141118; ddg2p_20141118_conf; ddg2p_201507; ddg2p_201507_conf; manju_list; UKGTN_v12; Nijmegen_ID_diagnostic; Nijmegen_ID_candidates; GEL_ID_green_20160217; neuro_20160418_strict; Loss of function. This is a pertinent gene from the BRIDGE Study : SPEED (Specialist Pathology: Evaluating Exomes in Diagnostics) which covers epilepsies, movement and microcephaly disorders, this gene comes from the SPEED_NEURO_v3.0_20170404 gene list. The following experts from the BRIDGE consortium NIHRBR-RD contributed to this panel: - Professor F. Lucy Raymond, Cambridge Institute for Medical Research, University of Cambridge - Manju Kurian, Paediatric neurologist, Great Ormond Street Hosptial - Keren Carss, NIHR BioResource - Rare Diseases, Cambridge University Hospitals NHS Foundation Trust - Alba Sanchis-Juan, NIHR BioResource - Rare Diseases, Cambridge University Hospitals NHS Foundation Trust - Marie Erwood NIHR BioResource - Rare Diseases, Cambridge University Hospitals NHS Foundation Trust - Louise Daugherty, NIHR BioResource - Rare Diseases, Cambridge University Hospitals NHS Foundation TrustCreated: 19 Jul 2017, 1:04 p.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Publications
Tag Q1_22_MOI was removed from gene: PEX6.
Source NHS GMS was added to PEX6. Mode of inheritance for gene PEX6 was changed from BIALLELIC, autosomal or pseudoautosomal to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Penetrance for gene PEX6 was set from to Complete
Mode of inheritance for gene: PEX6 was changed from BIALLELIC, autosomal or pseudoautosomal to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: PEX6 were changed from Peroxisome biogenesis disorder 4A (Zellweger), 614862Peroxisome biogenesis disorder 4B, 614863; ZELLWEGER SYNDROME (ZWS) to Peroxisome biogenesis disorder 4A (Zellweger), OMIM:614862; Peroxisome biogenesis disorder 4B, OMIM:614863
Publications for gene: PEX6 were set to
Tag Q1_22_MOI tag was added to gene: PEX6.
12.03.2018: Due to major updates completed (Phase 1, 2 and 3), this panel was promoted to Version 2 in order to reflect the major updates since November 2017 which have resulted in reviews for 836 genes added by Genomics England Curators and the Clinical Team, 130 new Green genes added to the interpretation pipeline (from 751 to 881 Green genes), and the gene total has increased from 1879 to 1927.
The Gel status was updated for this whole panel
The Gel status was updated for this whole panel
PEX6 was added to Intellectual disabilitypanel. Source: Expert Review Green Model of inheritance for gene PEX6 was set to BIALLELIC, autosomal or pseudoautosomal
PEX6 was added to Intellectual disabilitypanel. Sources: Radboud University Medical Center, Nijmegen