Space operation at L2 provides a gravitationally stable orbit for a vehicle and partially eliminates the need for periodic thrust-vectoring to maintain orbital stability.
Altogether these data show that the use of FGF-1 and FGF-2 IRESs in expression vectors allows to maintain the ratio of two gene products independently of the vector expression level and of the time after gene transfer.
This study thus expands the available repertoire of AAV-antibody information that can guide the design of host immune escaping AAV vectors able to maintain capsid functionality.
Moreover, P. pastoris is capable of growing to very high cell densities using minimal media (Wegner 1990) and integrative vectors help to maintain the genetic stability of the recombinant elements even in large scale fermentation processes (Romanos et al. 1992).
For example, vector competence, which describes the ability of a vector to acquire, maintain and transmit a parasite/pathogen, is widely assumed to be temperature-insensitive.
Successful transmission depends on the capacity of the vector to acquire, maintain, and transmit the pathogen (i.e. vector competence; Lane 1994; Edman 2002).
SNPs and the phenotype from each subject are maintained as a vector to preserve the association between SNPs and the phenotype.
They used a modified vectorial capacity equation to estimate the vector population required to maintain DENV transmission.
Plasmid cDNAs for the calcium channel α1, α2δ-1 and β1b subunits and for PrP were mixed at 2 1 2 x ratios at 1 μg/μl, where x=2, 1 or 0.5 unless otherwise stated, and the empty vector was included to maintain the total cDNA mixture constant.
