Determined by the structure of the transmembrane domain, ABC transporters are typically specific for the substrates that they are responsible for, although some may transport for multiple related substances.
Chunks following the common header may carry user data or control signaling, and a single SCTP packet may transport user data associated with multiple streams.
The financial cost and difficulties of transporting multiple children to the programs may also be a barrier.
Both cytoplasmic localization and the plasma membrane labelling pattern suggested that sialin may possess multiple transport functions in different cell types.
Although there is no axial mass dispersion and heat conduction, external heat and mass transfer may result in multiple solutions of transport equations.
Endosomal tubules may be a more reliable transport intermediate than vesicular endosomes in terms of delivering high amount of cargo to one target membrane location, as a tubule may deliver the same amount of transmembrane cargo in a single package as what would be transported by multiple distinct endosomes.
An interesting alternative for soluble proteins that do not bind to SV proteins is that they may be transported along with the chaperone molecule heat-shock-cognate 70 (Hsc70), which can interact in a non-specific fashion with multiple proteins.
Voters were transported to multiple polling stations in special buses.
Some proteins are even transported to multiple sites.
Motor neuron death in ALS is a complex process, and may involve multiple pathways including formation of protein aggregates, axonal transport defects, oxidative damage, mitochondrial defects, and alterations in calcium homeostasis [6].
