Core subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I) that is believed to belong to the minimal assembly required for catalysis. Complex I functions in the transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone (By similarity). This is the largest subunit of complex I and it is a component of the iron-sulfur (IP) fragment of the enzyme. It may form part of the active site crevice where NADH is oxidized. Source: Recombinant protein corresponding to aa28-315 from drosophila melanogaster ND75, fused to His-SUMO-Tag at N-terminal, expressed in E. coli. Molecular Weight: ~47.8kD Amino Acid Sequence: SAMVAQTPAKAPEKIEVFVDDIPVQVVPGTTVLQAAAQIGVEIPRFCYHERLAVAGNCRMCLVEVEKSPKPVAACAMPVMKGWRIKTNSDLTRKAREGVMEFLLMNHPLDCPICDQGGECDLQDQAMAFGSDRSRFTDINYTGKRAVEDKDIGPLVKTIMTRCIHCTRCVRFASEIAGVDDLGTTGRGNDMQIGTYVEKLFLTELSGNVIDLCPVGALTNKPYSFVARPWEIRKVSSIDVLDAVGSNIVVSTRTNEVLRILPRENEDVNEEWLADKSRFACDGLKRQR Storage and Stability: Lyophilized and reconstituted products are stable for 6 months after receipt at -20C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Supplied as a lyophilized powder from 20mM Tris-HCl, 0.5M sodium chloride, pH 8.0, 6% trehalose. Reconstitute with sterile ddH2O to a concentration of 0.1-1mg/ml.
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