Recombinant humaan Dihydrolipoamide Dehydrogenase/DLD-eiwit

DLD (Dihydrolipoamide dehydrogenase), also known as GCSL (glycine cleavage system L protein), is a component of the glycine cleavage system as well as of the alpha ketoacid dehydrogenase complexes. DLD is a flavin-dependent oxidoreductase and functions as a component of the alpha-keto acid dehydrogenase, the pyruvate dehydrogenase, the alpha-ketoglutarate dehydrogenase, the branched-chain alpha-keto acid dehydrogenase and as the L protein in the mitochondrial glycine cleavage system. Mutations in DLD protein can result in MSuD (maple syrup urine disease) and congenital infantile lactic acidosis. Recombinant human DLD protein, fused to His-tag at N-terminus, was expressed in E. coli and purified by using conventional chromatography techniques.

Specific activity is > 200 units/mg, one unit will reduce 1.0 umole of DL-lipoamide to DL-dihydrolipoamide per minute at pH 6.5 at 25C.

Dihydrolipoyl dehydrogenase mitochondrial, DLDH, E3, GCSL, LAD, PHE3, Dihydrolipoyl dehydrogenase, mitochondrial Diaphorase, Dihydrolipoamide dehydrogenase, Dihydrolipoyl dehydrogenase, Dihydrolipoyl dehydrogenase mitochondrial, DLD, E3 component of pyruvate dehydrogenase, E3 component of pyruvate dehydrogenase complex 2 oxo glutarate complex branched chain keto acid dehydrogenase complex, Glycine cleavage system L protein, Glycine cleavage system protein L, Lipoamide reductase, Lipoyl dehydrogenase, PHE 3

E.coli

Human

His-Tag

SDS-PAGE, Enzyme Activity

1 mg/mL (determined by Bradford assay)

> 95% by SDS-PAGE

Specific activity is > 200unit/mg, one unit will reduce 1.0 umole of DL-lipoamide to DL-dihydrolipoamide per minute at pH 6.5 at 25C.

54.4 kDa (511aa)

Dihydrolipoamide Dehydrogenase, DLD, Dihydrolipoyl dehydrogenase mitochondrial, DLDH, E3, GCSL, LAD, PHE3, Dihydrolipoyl dehydrogenase, mitochondrial Diaphorase, Dihydrolipoamide dehydrogenase, Dihydrolipoyl dehydrogenase, Dihydrolipoyl dehydrogenase mitochondrial, DLD, E3 component of pyruvate dehydrogenase, E3 component of pyruvate dehydrogenase complex 2 oxo glutarate complex branched chain keto acid dehydrogenase complex, Glycine cleavage system L protein, Glycine cleavage system protein L, Lipoamide reductase, Lipoyl dehydrogenase, PHE 3, ATGP0505-10 µg, ATGP0505-20 µg, ATGP0505-50 µg, ATGP0505-100 µg, ATGP0505-250 µg, ATGP0505-500 µg, ATGP0505-1 mg, ATGP0505-10, ATGP0505-20, ATGP0505-50, ATGP0505-100, ATGP0505-250, ATGP0505-500, ATGP0505-1

Giannopoulou E., et al. (2009) Anticancer Res. 29 (12) :5077-82. ; ; Daee DL., et al. (2009) Proc Natl Acad Sci u S A. 107 (1) :157-62.;

Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.

Liquid in. 20 mM Tris-HCl buffer (pH 8.0) containing 1mM DTT, 0.1M NaCl, 10% glycerol

Metabolism

NP_000099

P09622

Human

MADQ PIDADVTVIG SGPGGYVAAI KAAQLGFKTV CIEKNETLGG TCLNVGCIPS KALLNNSHYY HMAHGKDFAS RGIEMSEVRL NLDKMMEQKS TAVKALTGGI AHLFKQNKVV HVNGYGKITG KNQVTATKAD GGTQVIDTKN ILIATGSEVT PFPGITIDED TIVSSTGALS LKKVPEKMVV IGAGVIGVEL GSVWQRLGAD VTAVEFLGHV GGVGIDMEIS KNFQRILQKQ GFKFKLNTKV TGATKKSDGK IDVSIEAASG GKAEVITCDV LLVCIGRRPF TKNLGLEELG IELDPRGRIP VNTRFQTKIP NIYAIGDVVA GPMLAHKAED EGIICVEGMA GGAVHIDYNC VPSVIYTHPE VAWVGKSEEQ LKEEGIEYKV GKFPFAANSR AKTNADTDGM VKILGQKSTD RVLGAHILGP GAGEMVNEAA LALEYGASCE DIARVCHAHP TLSEAFREAN LAASFGKSIN F