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ATP-binding cassette, sub-family D (ALD), member 2
External IDs OMIM601081 MGI1349467 HomoloGene55873 GeneCards: ABCD2 Gene
RNA expression pattern
PBB GE ABCD2 207583 at tn.png
More reference expression data
Species Human Mouse
Entrez 225 26874
Ensembl ENSG00000173208 ENSMUSG00000055782
UniProt Q9UBJ2 Q3TU16
RefSeq (mRNA) NM_005164 NM_011994
RefSeq (protein) NP_005155 NP_036124
Location (UCSC) Chr 12:
38.23 - 38.3 Mb
Chr 15:
90.97 - 91.02 Mb
PubMed search [1] [2]

ATP-binding cassette sub-family D member 2 is a protein that in humans is encoded by the ABCD2 gene.[1][2]

The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the ALD subfamily, which is involved in peroxisomal import of fatty acids and/or fatty acyl-CoAs in the organelle. All known peroxisomal ABC transporters are half transporters which require a partner half transporter molecule to form a functional homodimeric or heterodimeric transporter. The function of this peroxisomal membrane protein is unknown; however this protein is speculated to function as a dimerization partner of ABCD1 and/or other peroxisomal ABC transporters. Mutations in this gene have been observed in patients with adrenoleukodystrophy, a severe demyelinating disease. This gene has been identified as a candidate for a modifier gene, accounting for the extreme variation among adrenoleukodystrophy phenotypes. This gene is also a candidate for a complement group of Zellweger syndrome, a genetically heterogeneous disorder of peroxisomal biogenesis.[2]


See also


ABCD2 has been shown to interact with PEX19.[3][4]


  1. ^ Lombard-Platet G, Savary S, Sarde CO, Mandel JL, Chimini G (Mar 1996). "A close relative of the adrenoleukodystrophy (ALD) gene codes for a peroxisomal protein with a specific expression pattern". Proc Natl Acad Sci U S A 93 (3): 1265–9. PMID 8577752.  
  2. ^ a b "Entrez Gene: ABCD2 ATP-binding cassette, sub-family D (ALD), member 2".  
  3. ^ Mayerhofer, Peter U; Kattenfeld Tanja, Roscher Adelbert A, Muntau Ania C (Mar. 2002). "Two splice variants of human PEX19 exhibit distinct functions in peroxisomal assembly". Biochem. Biophys. Res. Commun. (United States) 291 (5): 1180–6. doi:10.1006/bbrc.2002.6568. ISSN 0006-291X. PMID 11883941.  
  4. ^ Gloeckner, C J; Mayerhofer P U, Landgraf P, Muntau A C, Holzinger A, Gerber J K, Kammerer S, Adamski J, Roscher A A (Apr. 2000). "Human adrenoleukodystrophy protein and related peroxisomal ABC transporters interact with the peroxisomal assembly protein PEX19p". Biochem. Biophys. Res. Commun. (UNITED STATES) 271 (1): 144–50. doi:10.1006/bbrc.2000.2572. ISSN 0006-291X. PMID 10777694.  

Further reading

  • Petroni A, Cappa M, Carissimi R, et al. (2007). "Effect of testosterone metabolites on ABC half-transporter relative gene expression in X-linked adrenoleukodystrophy.". J. Inherit. Metab. Dis. 30 (5): 828. doi:10.1007/s10545-007-0591-1. PMID 17602313.  
  • Weinhofer I, Kunze M, Rampler H, et al. (2006). "Liver X receptor alpha interferes with SREBP1c-mediated Abcd2 expression. Novel cross-talk in gene regulation.". J. Biol. Chem. 280 (50): 41243–51. doi:10.1074/jbc.M509450200. PMID 16249184.  
  • 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. PMID 15489334.  
  • 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. PMID 12477932.  
  • Mayerhofer PU, Kattenfeld T, Roscher AA, Muntau AC (2002). "Two splice variants of human PEX19 exhibit distinct functions in peroxisomal assembly.". Biochem. Biophys. Res. Commun. 291 (5): 1180–6. doi:10.1006/bbrc.2002.6568. PMID 11883941.  
  • Gloeckner CJ, Mayerhofer PU, Landgraf P, et al. (2000). "Human adrenoleukodystrophy protein and related peroxisomal ABC transporters interact with the peroxisomal assembly protein PEX19p.". Biochem. Biophys. Res. Commun. 271 (1): 144–50. doi:10.1006/bbrc.2000.2572. PMID 10777694.  
  • 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. PMID 10704444.  
  • Liu LX, Janvier K, Berteaux-Lecellier V, et al. (2000). "Homo- and heterodimerization of peroxisomal ATP-binding cassette half-transporters.". J. Biol. Chem. 274 (46): 32738–43. doi:10.1074/jbc.274.46.32738. PMID 10551832.  
  • Holzinger A, Mayerhofer P, Berger J, et al. (1999). "Full length cDNA cloning, promoter sequence, and genomic organization of the human adrenoleukodystrophy related (ALDR) gene functionally redundant to the gene responsible for X-linked adrenoleukodystrophy.". Biochem. Biophys. Res. Commun. 258 (2): 436–42. doi:10.1006/bbrc.1999.0535. PMID 10329405.  
  • Netik A, Forss-Petter S, Holzinger A, et al. (1999). "Adrenoleukodystrophy-related protein can compensate functionally for adrenoleukodystrophy protein deficiency (X-ALD): implications for therapy.". Hum. Mol. Genet. 8 (5): 907–13. doi:10.1093/hmg/8.5.907. PMID 10196381.  
  • Holzinger A, Kammerer S, Berger J, Roscher AA (1997). "cDNA cloning and mRNA expression of the human adrenoleukodystrophy related protein (ALDRP), a peroxisomal ABC transporter.". Biochem. Biophys. Res. Commun. 239 (1): 261–4. doi:10.1006/bbrc.1997.7391. PMID 9345306.  
  • Savary S, Troffer-Charlier N, Gyapay G, et al. (1997). "Chromosomal localization of the adrenoleukodystrophy-related gene in man and mice.". Eur. J. Hum. Genet. 5 (2): 99–101. PMID 9195160.  

External links

This article incorporates text from the United States National Library of Medicine, which is in the public domain.



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