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IDH1  Protein, Antibody, ELISA Kit, cDNA Clone

Expression host: E. coli  
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IDH1 Related Pathways

    IDH1 Related Protein, Antibody, cDNA Gene, and ELISA Kits

    IDH1 Summary & Protein Information

    IDH1 Background

    Gene Summary: Isocitrate dehydrogenases catalyze the oxidative decarboxylation of isocitrate to 2-oxoglutarate. These enzymes belong to two distinct subclasses, one of which utilizes NAD(+) as the electron acceptor and the other NADP(+). Five isocitrate dehydrogenases have been reported: three NAD(+)-dependent isocitrate dehydrogenases, which localize to the mitochondrial matrix, and two NADP(+)-dependent isocitrate dehydrogenases, one of which is mitochondrial and the other predominantly cytosolic. Each NADP(+)-dependent isozyme is a homodimer. The protein encoded by IDH1 gene is the NADP(+)-dependent isocitrate dehydrogenase found in the cytoplasm and peroxisomes. It contains the PTS-1 peroxisomal targeting signal sequence. The presence of this enzyme in peroxisomes suggests roles in the regeneration of NADPH for intraperoxisomal reductions, such as the conversion of 2, 4-dienoyl-CoAs to 3-enoyl-CoAs, as well as in peroxisomal reactions that consume 2-oxoglutarate, namely the alpha-hydroxylation of phytanic acid. The cytoplasmic enzyme serves a significant role in cytoplasmic NADPH production. [provided by RefSeq, Jul 2008]
    General information above from NCBI
    Catalytic activity: Isocitrate + NADP(+) = 2-oxoglutarate + CO(2) + NADPH.
    Cofactor: Binds 1 magnesium or manganese ion per subunit.
    Subunit structure: Homodimer.
    Subcellular location: Cytoplasm. Peroxisome.
    Involvement in disease: Glioma (GLM) [MIM:137800]: Gliomas are benign or malignant central nervous system neoplasms derived from glial cells. They comprise astrocytomas and glioblastoma multiforme that are derived from astrocytes, oligodendrogliomas derived from oligodendrocytes and ependymomas derived from ependymocytes. Note=The gene represented in this entry is involved in disease pathogenesis. Mutations affecting Arg-132 are tissue-specific, and suggest that this residue plays a unique role in the development of high-grade gliomas. Mutations of Arg-132 to Cys, His, Leu or Ser abolish magnesium binding and abolish the conversion of isocitrate to alpha-ketoglutarate. Instead, alpha-ketoglutarate is converted to R(-)-2-hydroxyglutarate. Elevated levels of R(-)-2- hydroxyglutarate are correlated with an elevated risk of malignant brain tumors.
    Sequence similarity: Belongs to the isocitrate and isopropylmalate dehydrogenases family.
    General information above from UniProt

    IDH1 Alternative Name

    IDH,IDP,IDCD,IDPC,PICD,HEL-216,HEL-S-26, [homo-sapiens]
    AI314845,AI788952,E030024J03Rik,Idh-1,Idpc,MGC115782,Id-1,Idh1, [mouse]
    Id-1,Idpc,Idh-1,AI314845,AI788952,E030024J03Rik, [mus-musculus]

    IDH1 Related Studies

  • Takano S, et al. (2011) Detection of IDH1 mutation in human gliomas: comparison of immunohistochemistry and sequencing. Brain Tumor Pathol. 28(2): 115-23.
  • Geisbrecht BV, et al. (1999) The human PICD gene encodes a cytoplasmic and peroxisomal NADP(+)-dependent isocitrate dehydrogenase. J Biol Chem. 274(43): 30527-30533.
  • Nekrutenko A, et al. (1998) Cytosolic isocitrate dehydrogenase in humans, mice, and voles and phylogenetic analysis of the enzyme family. Mol Biol Evol. 15(12): 1674-1684.
  • Henke B, et al. (1998) IDP3 encodes a peroxisomal NADP-dependent isocitrate dehydrogenase required for the beta-oxidation of unsaturated fatty acids. J Biol Chem. 273(6): 3702-3711.
  • Gabriel JL, et al. (1986) Activity of purified NAD-specific isocitrate dehydrogenase at modulator and substrate concentrations approximating conditions in mitochondria. Metabolism. 35(7): 661-667.