Yet, the oocytes possess a large variety of endogenous membrane transporters and it is absolutely mandatory to distinguish the endogenous transporters from the heterologous, expressed transport systems.
Transport companies and their organisations, from groups representing small operators and owner-drivers to groups representing large transport and logistics providers, as well as specialised trades (refrigerated transport, express transport, home deliveries) were present and very active in the discussions.
There are at least three known nitrate uptake systems: a constitutive high-affinity transport system (cHATS), a NO3 − inducible high-affinity transport system (iHATS), and a low-affinity constitutively expressed transport system (LATS) (Crawford and Glass 1998; Forde 2000).
Global transcriptional expression analysis of plasmid-bearing cells over host showed a general trend of downregulated biosynthetic/energy metabolism genes, differentially expressed transport genes and upregulated heat shock proteins.
We found that both RT activity and RT protein were almost undetectable in viral particles of these two mutants, although the Pr160gag-pol mutants were properly expressed, transported and incorporated.
Human skeletal muscle expresses transport proteins that have been implicated in drug distribution and toxicity.
Thus, BBB and BCSFB express transport proteins that actively restrict entry of lipophilic and amphipathic substances from blood and/or remove those molecules from the brain extracellular fluids.
Both transport models express net transport as a function of transporter mobility (translocation rate D), substrate binding (dissociation constant K), and the concentrations of amino acid on both sides of the plasma membrane.
The microbial production of aconitic acid (9 g/L) is achieved in strains expressing this transport protein.
Two selected compounds strongly inhibited the hPAT mediated l-[3H]proline uptake into Caco-2 cells constitutively expressing the transport protein.
