ABCD3 explained

ATP-binding cassette sub-family D member 3 is a protein that in humans is encoded by the ABCD3 gene.[1] [2] [3]

Function

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. This peroxisomal membrane protein likely plays an important role in peroxisome biogenesis.

Clinical significance

Mutations have been associated with some forms of Zellweger syndrome, a heterogeneous group of peroxisome assembly disorders.[3] However, this association was denied [4] and congenital bile acid synthesis defect-5 (CBAS5) was recently shown to be caused by homozygous mutation in the ABCD3 gene [5]

See also

Interactions

ABCD3 has been shown to interact with PEX19.[6] [7] [8] [9]

Further reading

External links

Notes and References

  1. Gärtner J, Moser H, Valle D . Mutations in the 70K peroxisomal membrane protein gene in Zellweger syndrome . Nat Genet . 1 . 1 . 16–23 . June 1993 . 1301993 . 10.1038/ng0492-16 . 5779170 .
  2. Gärtner J, Kearns W, Rosenberg C, Pearson P, Copeland NG, Gilbert DJ, Jenkins NA, Valle D . Localization of the 70-kDa peroxisomal membrane protein to human 1p21-p22 and mouse 3 . Genomics . 15 . 2 . 412–4 . April 1993 . 8449508 . 10.1006/geno.1993.1076 . free .
  3. Web site: Entrez Gene: ABCD3 ATP-binding cassette, sub-family D (ALD), member 3.
  4. 9199576. 1997. Paton. B. C.. Heron. S. E.. Nelson. P. V.. Morris. C. P.. Poulos. A.. Absence of mutations raises doubts about the role of the 70-kD peroxisomal membrane protein in Zellweger syndrome. American Journal of Human Genetics. 60. 6. 1535–9. 10.1016/S0002-9297(07)64247-5. 1716138.
  5. 25168382. 2015. Ferdinandusse. S.. Jimenez-Sanchez. G.. Koster. J.. Denis. S.. Van Roermund. C. W.. Silva-Zolezzi. I.. Moser. A. B.. Visser. W. F.. Gulluoglu. M.. Durmaz. O.. Demirkol. M.. Waterham. H. R.. Gökcay. G.. Wanders. R. J.. Valle. D.. A novel bile acid biosynthesis defect due to a deficiency of peroxisomal ABCD3. Human Molecular Genetics. 24. 2. 361–70. 10.1093/hmg/ddu448. free.
  6. Mayerhofer PU, Kattenfeld T, Roscher AA, Muntau AC . Two splice variants of human PEX19 exhibit distinct functions in peroxisomal assembly . Biochem. Biophys. Res. Commun. . 291 . 5 . 1180–6 . March 2002 . 11883941 . 10.1006/bbrc.2002.6568 .
  7. Gloeckner CJ, Mayerhofer PU, Landgraf P, Muntau AC, Holzinger A, Gerber JK, Kammerer S, Adamski J, Roscher AA . Human adrenoleukodystrophy protein and related peroxisomal ABC transporters interact with the peroxisomal assembly protein PEX19p . Biochem. Biophys. Res. Commun. . 271 . 1 . 144–50 . April 2000 . 10777694 . 10.1006/bbrc.2000.2572 .
  8. Sacksteder KA, Jones JM, South ST, Li X, Liu Y, Gould SJ . PEX19 binds multiple peroxisomal membrane proteins, is predominantly cytoplasmic, and is required for peroxisome membrane synthesis . J. Cell Biol. . 148 . 5 . 931–44 . March 2000 . 10704444 . 2174547 . 10.1083/jcb.148.5.931 .
  9. Biermanns M, Gärtner J . Targeting elements in the amino-terminal part direct the human 70-kDa peroxisomal integral membrane protein (PMP70) to peroxisomes . Biochem. Biophys. Res. Commun. . 285 . 3 . 649–55 . July 2001 . 11453642 . 10.1006/bbrc.2001.5220 .