Cloning and expression of the gene encoding solanesyl diphosphate synthase from Hevea brasiliensis

Add time:07/15/2019    Source:sciencedirect.com

SummaryPlastoquinones play important roles as electron carriers in the light-dependent reactions of photosynthesis and also as a cofactor of phytoene desaturation in the synthesis of carotenoid. A plastoquinone-9 (PQ-9) was identified in Frey-Wyssling organelles of fresh rubber latex from Hevea brasiliensis. This indicates that a Hevea solanesyl diphosphate synthase (HbSDS) must be present for the synthesis of the C45 prenyl side chain of the PQ-9 found in the rubber latex. Based on the sequence information of other trans-prenyl diphosphate synthases, the cDNA encoding HbSDS was cloned from a Hevea rubber latex cDNA library. Sequence analysis revealed the presence of an ORF consisting of 1254 bp capable of encoding a 46,095 Da polypeptide. The deduced amino acid sequence of the clone contained all conserved regions found in typical trans-prenyl chain elongating enzymes. This cDNA, expressed in Escherichia coli cells as an insoluble but Trx-His-tagged fusion protein, showed a distinct solanesyl diphosphate synthase activity in the presence of Triton X-100. The expression level of HbSDS mRNA in latex was found to be higher than those in leaves, stems and roots. The expressed HbSDS is suggested to be a specific enzyme in the Frey-Wyssling particles of rubber latex.

We also recommend Trading Suppliers and Manufacturers of SOLANESYL BROMIDE (cas 52610-77-2). Pls Click Website Link as below: cas 52610-77-2 suppliers

Prev:The Drosophila RCC1 homolog, Bj1, regulates nucleocytoplasmic transport and neural differentiation during Drosophila development
Next:Synthesis and gastric antisecretory properties of allenic 16-phenoxy-omega-tetranor prostaglandin E analogs)