The covalent alteration of one or more amino acids occurring in proteins, peptides and nascent polypeptides (co-translational, post-translational modifications) occurring at the level of an individual cell. Includes the modification of charged tRNAs that are destined to occur in a protein (pre-translation modification).

The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.

Any process that modulates the frequency, rate or extent of autophagy. Autophagy is the process in which cells digest parts of their own cytoplasm.

Any process that modulates the frequency, rate or extent of signal transduction mediated by the phosphatidylinositol 3-kinase cascade.

The process in which one or more ubiquitin groups are added to a protein.

The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, with ubiquitin-protein ligation catalyzed by an SCF (Skp1/Cul1/F-box protein) complex, and mediated by the proteasome.

A process in which a host organism modulates the frequency, rate or extent of viral RNA genome replication.

An acute behavioral change resulting from a perceived external threat.

Any process that modulates synaptic transmission by regulating a catabolic process occurring at a presynapse.

Any process that modulates synaptic transmission by regulating a catabolic process occurring at a presynapse.

Any process that modulates the frequency, rate or extent of synaptic vesicle exocytosis.

Any process that modulates the frequency, rate or extent of synaptic vesicle exocytosis.

All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

A ubiquitin ligase complex in which a cullin from the Cul1 subfamily and a RING domain protein form the catalytic core; substrate specificity is conferred by a Skp1 adaptor and an F-box protein. SCF complexes are involved in targeting proteins for degradation by the proteasome. The best characterized complexes are those from yeast and mammals (with core subunits named Cdc53/Cul1, Rbx1/Hrt1/Roc1).

The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.

A synapse between the Schaffer collateral axon of a CA3 pyramidal cell and a CA1 pyramidal cell.

A synapse between the Schaffer collateral axon of a CA3 pyramidal cell and a CA1 pyramidal cell.

A synapse that uses glutamate as a neurotransmitter.

A synapse that uses glutamate as a neurotransmitter.