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A putative cytadhesin-related protein (PvpA) undergoing variation in its expression was identified in the avian pathogen Mycoplasma gallisepticum. The pvpA gene was cloned, expressed in Escherichia coli, and sequenced. It exhibits 54 and 52% homology with the P30 and P32 cytadhesin proteins of the human pathogens Mycoplasma pneumoniae and Mycoplasma(More)
We have recently reported that three distinct size- and phase-variable surface lipoproteins (Vsps) of the bovine pathogen Mycoplasma bovis possess a common epitope recognized by monoclonal antibody 1E5. In the present study, we show that this epitope is also present on a size-variant protein (PvpA) of the avian pathogen Mycoplasma gallisepticum. Application(More)
Glutamate transporters are essential for terminating synaptic transmission. Glutamate is translocated together with three sodium ions. In the neuronal glutamate transporter EAAC1, lithium can replace sodium. To address the question of whether the coupling ion interacts with the 'driven' substrate during co-transport, the kinetic parameters of transport of(More)
Removal of glutamate from the synaptic cleft by (Na(+) + K(+))-coupled transporters prevents neurotoxicity due to elevated concentrations of the transmitter. These transporters exhibit an unusual topology, including two reentrant loops. Reentrant loop II plays a pivotal role in coupling ion and glutamate fluxes. Here we used cysteine-scanning mutagenesis of(More)
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