Table 1. Palmitoyl-proteome change in Hip14-gt versus WT brain.
Proteomics | |||||
---|---|---|---|---|---|
Gene Symbol | Description | Change | Ref | ABE | click |
Down in HIP14-gt: | |||||
Flot1 | Flotillin 1; endocytosis; plasma membrane microdomain formation | −36%*** | (1) | + | + |
Flot2 | Flotillin 2; endocytosis; plasma membrane microdomain formation | −36%*** | (2) | + | + |
Arhgap21 | GAP for CDC42 | −30%** | + | ||
Ank2 | Ankyrin 2; links integral membrane proteins to cytoskeleton; membrane domain role. | −22%** | |||
Syn2 | Synapsin 2; associates with cytosolic face of synaptic vesicles | −18%*** | |||
Gnal | Gα(olf); Gα olfactory type; stimulates adenylyl cyclase | −17%*** | (3) | + | |
Sept8 | Septin 8; GTPase that, together with other septins, forms filamentous, cytoskeletal structures that demarcate polarized plasma membrane structures; neuronal polarity | −13%** | + | ||
Camkv | CAM kinase-like vesicle-associated | −11%** | + | ||
Fasn | Fatty acid synthase (ABE detection may reflect thioester utilization by acyl-carrier function). | −10%*** | + | + | |
Cnp | Cyclic nucleotide phosphodiesterase; highly concentrated in myelin sheaths. | −10%*** | (4) | + | + |
Gdi2 | Guanosine diphosphate dissociation inhibitor; Rab GDI beta. | −10%*** | + | ||
Up in Hip14-gt: | |||||
Pde2a | Cyclic nucleotide phosphodiesterase, cGMP-activated. | +25%*** | (5) | + | |
Glul | GS; glutamine synthetase | +12%*** | + | ||
Lower significance: | |||||
Add1 | Adducin 1; α-adducin; heterodimer with γ-adducin; membrane-cytoskeleton associated; promotes assembly of actin/spectrin network; binds calmodulin. | −19%* | |||
Slc44a1 | CTL1; choline transporter-like 1; multi-pass membrane protein; component of mitochondrial outer membrane; may be involved in myelin synthesis. | −15%* | + | ||
Rap2a | Small RAS family G protein; regulates dendrite extension and arborization; farnesylated and palmitoylated. | −14%* | (6) | + | + |
Mtap1b | Microtubule-associated protein; role in neurite outgrowth. | −13%* | + | ||
Gpd2 | Glycerol-3—phosphate dehydrogenase 2; mitochondrial inner membrane localization. | −11%* | |||
Pfkl | Phosphofructokinase, liver. | −10%* |
The proteins showing significant change (* P < 0.05; ** P < 0.01; *** P < 0.001) of greater than 10% in the Hip14-gt brain palmitoyl-proteome relative to the WT brain palmitoyl-proteome are listed. The three rightmost columns provide the published evidence supporting palmitoylation documentation for each protein, including either a specific reference (see below), or a “+” indication that the protein was identified as likely palmitoylated in prior ABE- or click-based proteomic analyses (see Table S1 for the specific references to these proteomic studies and for the expanded ABE/SILAM data set). See Figure S2 for graphical depictions of the peptide data for the proteins reported within this table.
References: