PEX12

Peroxisomal biogenesis factor 12

Identifiers

PEX12 ; PAF-3; PBD3A

External IDs

OMIM: 601758 MGI: 2144177 HomoloGene: 240 GeneCards: PEX12 Gene

Gene ontology
Molecular function	• ubiquitin-protein transferase activity • protein binding • protein C-terminus binding • zinc ion binding
Cellular component	• peroxisome • peroxisomal membrane • integral component of peroxisomal membrane • peroxisomal importomer complex
Biological process	• protein monoubiquitination • protein targeting to peroxisome • peroxisome organization • protein import into peroxisome matrix
Sources: Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 17:
35.57 – 35.58 Mb

Chr 11:
83.29 – 83.3 Mb

PubMed search

Peroxisome assembly protein 12 is a protein that in humans is encoded by the PEX12 gene.^[1]^[2]

Function

PEX12 is needed for protein import into peroxisomes.^[3] This gene belongs to the peroxin-12 family. Peroxins (PEXs) are proteins that are essential for the assembly of functional peroxisomes.

Clinical significance

The peroxisome biogenesis disorders (PBDs; MIM 601539) are a group of genetically heterogeneous diseases that are usually lethal in early infancy. Although the clinical features of PBD patients vary, cells from all PBD patients exhibit a defect in the import of one or more classes of peroxisomal matrix proteins into the organelle. This cellular phenotype is shared by yeast 'pex' mutants, and human orthologs of yeast PEX genes defective in some PBD complementation groups (CGs).^[2]

Interactions

PEX12 has been shown to interact with PEX10,^[4]^[5] PEX5^[4]^[5] and PEX19.^[6]^[7]

References

↑ Chang CC, Lee WH, Moser H, Valle D, Gould SJ (April 1997). "Isolation of the human PEX12 gene, mutated in group 3 of the peroxisome biogenesis disorders". Nat Genet 15 (4): 385–8. doi:10.1038/ng0497-385. PMID 9090384.
1 2 "Entrez Gene: PEX12 peroxisomal biogenesis factor 12".
↑ Okumoto K, Shimozawa N, Kawai A, Tamura S, Tsukamoto T, Osumi T, Moser H, Wanders RJ, Suzuki Y, Kondo N, Fujiki Y (July 1998). "PEX12, the pathogenic gene of group III Zellweger syndrome: cDNA cloning by functional complementation on a CHO cell mutant, patient analysis, and characterization of PEX12p". Mol. Cell. Biol. 18 (7): 4324–36. PMC 109016. PMID 9632816.
1 2 Chang CC, Warren DS, Sacksteder KA, Gould SJ (November 1999). "PEX12 interacts with PEX5 and PEX10 and acts downstream of receptor docking in peroxisomal matrix protein import". J. Cell Biol. 147 (4): 761–74. doi:10.1083/jcb.147.4.761. PMC 2156163. PMID 10562279.
1 2 Okumoto K, Abe I, Fujiki Y (August 2000). "Molecular anatomy of the peroxin Pex12p: ring finger domain is essential for Pex12p function and interacts with the peroxisome-targeting signal type 1-receptor Pex5p and a ring peroxin, Pex10p". J. Biol. Chem. 275 (33): 25700–10. doi:10.1074/jbc.M003303200. PMID 10837480.
↑ Sacksteder KA, Jones JM, South ST, Li X, Liu Y, Gould SJ (March 2000). "PEX19 binds multiple peroxisomal membrane proteins, is predominantly cytoplasmic, and is required for peroxisome membrane synthesis". J. Cell Biol. 148 (5): 931–44. doi:10.1083/jcb.148.5.931. PMC 2174547. PMID 10704444.
↑ Fransen M, Wylin T, Brees C, Mannaerts GP, Van Veldhoven PP (July 2001). "Human pex19p binds peroxisomal integral membrane proteins at regions distinct from their sorting sequences". Mol. Cell. Biol. 21 (13): 4413–24. doi:10.1128/MCB.21.13.4413-4424.2001. PMC 87101. PMID 11390669.

Okumoto K, Fujiki Y (1997). "PEX12 encodes an integral membrane protein of peroxisomes". Nat. Genet. 17 (3): 265–6. doi:10.1038/ng1197-265. PMID 9354782.
Schrader M, Reuber BE, Morrell JC, et al. (1998). "Expression of PEX11beta mediates peroxisome proliferation in the absence of extracellular stimuli". J. Biol. Chem. 273 (45): 29607–14. doi:10.1074/jbc.273.45.29607. PMID 9792670.
Chang CC, Gould SJ (1998). "Phenotype-genotype relationships in complementation group 3 of the peroxisome-biogenesis disorders". Am. J. Hum. Genet. 63 (5): 1294–306. doi:10.1086/302103. PMC 1377540. PMID 9792857.
South ST, Gould SJ (1999). "Peroxisome Synthesis in the Absence of Preexisting Peroxisomes". J. Cell Biol. 144 (2): 255–66. doi:10.1083/jcb.144.2.255. PMC 2132891. PMID 9922452.
Chang CC, Warren DS, Sacksteder KA, Gould SJ (1999). "Pex12 Interacts with Pex5 and Pex10 and Acts Downstream of Receptor Docking in Peroxisomal Matrix Protein Import". J. Cell Biol. 147 (4): 761–74. doi:10.1083/jcb.147.4.761. PMC 2156163. PMID 10562279.
Sacksteder KA, Jones JM, South ST, et al. (2000). "Pex19 Binds Multiple Peroxisomal Membrane Proteins, Is Predominantly Cytoplasmic, and Is Required for Peroxisome Membrane Synthesis". J. Cell Biol. 148 (5): 931–44. doi:10.1083/jcb.148.5.931. PMC 2174547. PMID 10704444.
Okumoto K, Abe I, Fujiki Y (2000). "Molecular anatomy of the peroxin Pex12p: ring finger domain is essential for Pex12p function and interacts with the peroxisome-targeting signal type 1-receptor Pex5p and a ring peroxin, Pex10p". J. Biol. Chem. 275 (33): 25700–10. doi:10.1074/jbc.M003303200. PMID 10837480.
Fransen M, Wylin T, Brees C, et al. (2001). "Human Pex19p Binds Peroxisomal Integral Membrane Proteins at Regions Distinct from Their Sorting Sequences". Mol. Cell. Biol. 21 (13): 4413–24. doi:10.1128/MCB.21.13.4413-4424.2001. PMC 87101. PMID 11390669.
Fransen M, Brees C, Ghys K, et al. (2002). "Analysis of mammalian peroxin interactions using a non-transcription-based bacterial two-hybrid assay". Mol. Cell Proteomics 1 (3): 243–52. doi:10.1074/mcp.M100025-MCP200. PMID 12096124.
Harper CC, Berg JM, Gould SJ (2003). "PEX5 binds the PTS1 independently of Hsp70 and the peroxin PEX12". J. Biol. Chem. 278 (10): 7897–901. doi:10.1074/jbc.M206651200. PMID 12456682.
Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Gootjes J, Schmohl F, Waterham HR, Wanders RJ (2004). "Novel mutations in the PEX12 gene of patients with a peroxisome biogenesis disorder". Eur. J. Hum. Genet. 12 (2): 115–20. doi:10.1038/sj.ejhg.5201090. PMID 14571262.
Gootjes J, Schmohl F, Mooijer PA, et al. (2004). "Identification of the molecular defect in patients with peroxisomal mosaicism using a novel method involving culturing of cells at 40 degrees C: implications for other inborn errors of metabolism". Hum. Mutat. 24 (2): 130–9. doi:10.1002/humu.20062. PMID 15241794.
Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
Mano S, Nakamori C, Nito K, et al. (2007). "The Arabidopsis pex12 and pex13 mutants are defective in both PTS1- and PTS2-dependent protein transport to peroxisomes". Plant J. 47 (4): 604–18. doi:10.1111/j.1365-313X.2006.02809.x. PMID 16813573.
Zeharia A, Ebberink MS, Wanders RJ, et al. (2007). "A novel PEX12 mutation identified as the cause of a peroxisomal biogenesis disorder with mild clinical phenotype, mild biochemical abnormalities in fibroblasts and a mosaic catalase immunofluorescence pattern, even at 40 degrees C". J. Hum. Genet. 52 (7): 599–606. doi:10.1007/s10038-007-0157-y. PMID 17534573.

External links

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