"In genetics, a promoter is a sequence of DNA to which proteins bind that initiate transcription of a single RNA from the DNA downstream of it. This RNA may encode a protein, or can have a function in and of itself, such as tRNA, mRNA, or rRNA. Promoters are located near the transcription start sites of genes, upstream on the DNA (towards the 5' region of the sense strand)."
In programming terminology, the promoter region listens for events, and is followed by a handler body. So protein concentrations can be used for state.
Regarding the calcium gradients you mentioned, I wonder... I think they are more about inter-cellular communication. Cells can use calcium to make electricity. Calcium is also used by neurons to send electric pulses.
I actually find it fascinating that neurons are not unique in using electricity to communicate - that an analog exists in the plant world.
Shouldn't be too surprising.
"In genetics, a promoter is a sequence of DNA to which proteins bind that initiate transcription of a single RNA from the DNA downstream of it. This RNA may encode a protein, or can have a function in and of itself, such as tRNA, mRNA, or rRNA. Promoters are located near the transcription start sites of genes, upstream on the DNA (towards the 5' region of the sense strand)."
In programming terminology, the promoter region listens for events, and is followed by a handler body. So protein concentrations can be used for state.
Regarding the calcium gradients you mentioned, I wonder... I think they are more about inter-cellular communication. Cells can use calcium to make electricity. Calcium is also used by neurons to send electric pulses.
I actually find it fascinating that neurons are not unique in using electricity to communicate - that an analog exists in the plant world.