Are there specific transports for specific amino acids or is there one transport for all the amino acids?

Question

There are specific transports for specific biological compounds and what not. So I was wondering if there were specific protein transport for each specific amino acid, or just one protein transport for all.

Answer 1

You should specify for which organism.
As far as I know for E.coli. There are some transporters that are specific to groups of amino acids, but not to a single amino acid.
There is also a periplasmic binding protein which is specific for leucine. It binds leucine and then loads it into an amino acid channel. So in a way in some cases you have very specific subunits/intermediates combined with a less specific pathway.

Answer 2

there are specific transports mostly done by tRNA though but depends on what kind of protein they are going to make and when the protein is needed etc