Protein Location Biological function
Synaptic Snap25 (Synaptosomal-associated 25kD protein) Cytoplasm, plasma  membrane, cell junction synaptosome Neurotransmitter uptake and secretion; synaptic transmission; synaptic vesicle docking during exocytosis; regulation of insulin secretion.
  Cltb (Clathrin, light chain B) Plasma membrane Intracellular protein/receptor transport; vesicle-mediated transport.
  Snca (Synuclein α) nucleus, cytoplasm, plasma membrane Integration of presynaptic signaling and membrane trafficking; regulation of dopamine secretion; negative regulation of mono-oxygenase activity; response to interferon gamma; negative regulation of histone acetylation.
Metabolic Hk1 (Hexokinase type-I, chain B) Mitochondria, cytoplasm Glycolysis; anti-apoptosis; energy and glucose metabolism.
  Gapdh (Glyceraldehyde-3-phosphate
dehydrogenase)
Cytoplasm,nucleus,membrane, perinuclear region Glucose metabolism; glycolysis; oxidation reduction; apoptosis; energy metabolism.
  Psmb2 (Proteasome [prosome, macropain] subunit β type 2) Nucleus, cytoplasm, proteasome Ubiquitin-dependent protein degradation.
  Vars (Valine-tRNA synthetase) Nucleus Valine-tRNA aminoacylation.
  Trap1 (TNF receptor-associated protein 1) Cytoplasm, mitochondria ATP binding; adaptation to oxidative stress; chaperone activity; protein folding.
Signaling Calr  (Calreticulin) Cytoplasm   Ca2+ binding; regulator of transcription; regulator of apoptosis.
   Rpsa (Ribosomal protein SA) Cellsurface,cytoplasm,nucleoli ribosome Translational elongation; cell adhesion; structural constituent of ribosome; receptor activity; ribosome binding. 
  Gap43*  (Growth associated Protein 43)          Plasma membrane, synaptosomes      Calmodulin binding; activation of protein kinase C activity by G-protein coupled receptor protein signaling pathway; nervous system development; glial cell differentiation; axon choice point recognition; growth cone guidance; actin dynamics.
  Nudt3 (Nudix [nucleoside diphosphate Linked moiety X]-type motif 3) Cytoplasm diphosphoinositol-polyphosphate diphosphatase activity; cell-cell signaling; turnover of inositol pyrophosphates.
  Oas1 (2'-5' oligoadenylate synthetase
1H)
  anti-viral action of interferon.
Cytoskeleton Basp1 (Brain abundant, membrane attached signal protein 1) Plasma Membrane Calmodulin binding; component of brain lipid raft; neuron-specific regulates neurite outgrowth.
  Map2** (Microtubule-associated protein 2) Cytoskeleton, cytoplasm Negative regulation of microtubule depolymerization; calmodulin binding;
structural molecule.
  Cnp
(2',3'-Cyclic nucleotide 3' phosphodiesterase)
Cytoplasm Phosphodiesterase activity; microtubule cytoskeleton organization; synaptic transmission; axonogenesis; RNA metabolism.
  Efemp2 Basement membrane, Extracellular space Extracellular matrix structural constituent; calcium ion binding; protein binding; transmembrane receptor activity.
Transport Ensa      
(Endosulfine α)     
Cytoplasm            Transport; response to nutrient; receptor binding; ion channel inhibitor activity.
Note: *Gap-43 is localized in the plasma membrane and is also a component of the cytoskeletal structure and synapse.
**two forms of Map2 were identified, one of which was phosphorylated.
Table 1: Functional classification of proteins that are differentially expressed in rat PFC upon chronic lithium treatment.