In Aplysia's long-term facilitation, the transcriptional activator C/EBP enhances CREB1 expression by replacing CREB2, while the PKA and MAPK pathways phosphorylate CREB1. Additionally, there is a decrease in ribosomal protein expression to inhibit CREB2 production and a reduction in MAPK regulatory subunits. Increasing ubiquitin hydrolase expression contributes to the degradation of certain proteins.

1. In Aplysia long-term facilitation (long-term memory): the transcriptional activator C/EBP acts to
increase expression of CREB1 transcription is increased by replacing CREB 2 with CREB 1 on
the DNA protein kinase A and MAP kinase together phosphorylate CREB 1 1 pts Question 11 In
Aplysia long-term facilitation (long-term memory): Expression of ribosomal proteins is
decreased in order to inhibit CREB2 production Expression of MAPK regulatory subunits are
decreased Increased expression of ubiquitin hydrolyase leads to degradation of specific proteins