نتایج جستجو برای: decaprenyl diphosphate synthase
تعداد نتایج: 114791 فیلتر نتایج به سال:
Cloning of the gene for undecaprenyl diphosphate synthase was successful, providing the first primary structure for any prenyltransferase that catalyzes Z-prenyl chain elongation. A genomic DNA library of Micrococcus luteus B-P 26 was constructed in Escherichia coli, and the recombinant clones were grown on nylon membranes. The membrane was incubated directly by floating it on a reaction mixtur...
Chrysanthemyl diphosphate synthase (CPPase) catalyzes the condensation of two molecules of dimethylallyl diphosphate to produce chrysanthemyl diphosphate (CPP), a monoterpene with a non-head-to-tail or irregular c1'-2-3 linkage between isoprenoid units. Irregular monoterpenes are common in Chrysanthemum cinerariaefolium and related members of the Asteraceae family. In C. cinerariaefolium, CPP i...
Genes coding for putative chlorophyll a synthase (chlG) from Synechocystis sp. PCC 6803 and bacteriochlorophyll a synthase (bchG) from Rhodobacter capsulatus were amplified by the polymerase chain reaction and cloned into T7 RNA polymerase-based expression plasmids. In vitro enzymatic assays indicated that heterologous expression of the chlG and bchG gene products in Escherichia coli conferred ...
Different organisms produce different species of isoprenoid quinones, each with its own distinctive length. These differences in length are commonly exploited in microbial classification. The side chain length of quinone is determined by the nature of the polyprenyl diphosphate synthase that catalyzes the reaction. To determine if the side chain length of ubiquinone (UQ) has any distinct role t...
Bisphosphonate drugs (e.g., Fosamax and Zometa) are thought to act primarily by inhibiting farnesyl diphosphate synthase (FPPS), resulting in decreased prenylation of small GTPases. Here, we show that some bisphosphonates can also inhibit geranylgeranyl diphosphate synthase (GGPPS), as well as undecaprenyl diphosphate synthase (UPPS), a cis-prenyltransferase of interest as a target for antibact...
It has long been known that small changes to the structure of the R(2) side chain of nitrogen-containing bisphosphonates can dramatically affect their potency for inhibiting bone resorption in vitro and in vivo, although the reason for these differences in antiresorptive potency have not been explained at the level of a pharmacological target. Recently, several nitrogen-containing bisphosphonat...
Abstract The fragmentation mechanisms leading to the formation of several pronounced fragment ions formed during EI mass spectrometry diterpene hydrocarbons polytrichastrene A and wanju‐2,5‐diene were investigated by isotopic labelling experiments. All twenty singly 13 C‐labelled isotopomers these diterpenes enzymatically synthesised from ( C)geranylgeranyl diphosphate using synthase Chryseobac...
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