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Sinorhizobium (Ensifer) meliloti is a model example of a soil alpha‐proteobacterium which induces the formation of nitrogen‐fixing symbiotic nodules on the legume roots. In contrast to all other rhizobacterial species, S. meliloti contains multiple homologs of nucleobase transporter genes that belong to NAT/NCS2 family (Nucleobase‐Ascorbate Transporter/Nucleobase‐Cation Symporter‐2). We analyzed functionally...
The uracil permease UraA of Escherichia coli is a structurally known prototype for the ubiquitous Nucleobase‐Ascorbate Transporter (NAT) or Nucleobase‐Cation Symporter‐2 (NCS2) family and represents a well‐defined subgroup of bacterial homologs that remain functionally unstudied. Here, we analyze four of these homologs, including RutG of E. coli which shares 35% identity with UraA and is encoded in...
Electronical power and control systems can decisively influence the performance of the piezoelectric engines and actuators. This paper presents the modeling of some ultrasonic motor and the role of some equipments that amplifies signals of variable frequency with the lower limit of 20 kHz and various wave forms, in order to obtain new performance in using the types of engines achieved in the Research...
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