Table I. Cytoplasmic proteins identified by LC-MS/MS demonstrating ≥2-fold change in abundance in response to IBV infection.
Notes on protein function were obtained from annotations in the UniProt database. ssDNA, single-stranded DNA; dsDNA, double-stranded DNA.
| Protein ID | Name | Ratio | Peptides | Sequence coverage | PEP | Function |
|---|---|---|---|---|---|---|
| % | ||||||
| Proteins present in increased abundance in IBV-infected cells | ||||||
| IPI00299554 | KIF14 | 121.5 | 13 | 0.7 | 0.030844 | Essential for cytokinesis |
| IPI00910009 | cDNA FLJ53554 | 119.4 | 15 | 6.6 | 0.017233 | Unknown |
| IPI00152881 | Shroom3 | 21.8 | 7 | 0.5 | 0.021639 | Cell morphology |
| IPI00289501 | VGF | 4.4 | 5 | 10.4 | 3.51 × 10−11 | Regulation of cell-cell interactions |
| IPI00902514 | Histone H2A | 4.3 | 3 | 11.2 | 0.013631 | DNA binding, nucleosome component |
| IPI00876941 | Caveolin 1 variant | 4.1 | 3 | 13.4 | 6.75 × 10−11 | A scaffolding protein within caveolar membranes |
| IPI00418471 | Vimentin | 3.6 | 137 | 63.7 | 9.49 × 10−297 | Cytoskeleton |
| IPI00004669 | pp-GaNTase 2 | 3.4 | 2 | 4.4 | 0.001276 | O-Linked glycosylation |
| IPI00220739 | mPR | 3.2 | 3 | 14.9 | 2.37 × 10−17 | Progesterone receptor |
| IPI00218466 | SEC61A1 | 3.0 | 2 | 6 | 0.001145 | Insertion of membrane or secretory proteins into the ER |
| IPI00102069 | eIF 3 | 3.0 | 3 | 10.2 | 6.86 × 10−9 | Protein synthesis |
| IPI00910513 | cDNA FLJ78119 | 3.0 | 3 | 4.4 | 0.004264 | Highly similar to Homo sapiens G1 to S phase transition 1 |
| IPI00855785 | Fibronectin | 2.9 | 8 | 3.7 | 2.07 × 10−34 | Cell adhesion, cell morphology |
| IPI00166293 | Histone H2B type 3-B | 2.9 | 10 | 35.7 | 7.54 × 10−36 | DNA binding, nucleosome component |
| IPI00296190 | C10orf58 | 2.8 | 2 | 10 | 0.003213 | Unknown |
| IPI00010951 | Epiplakin | 2.8 | 2 | 3.7 | 1.51 × 10−21 | Cytoskeleton |
| IPI00328319 | RBBP4 | 2.7 | 2 | 9.4 | 5.23 × 10−20 | Chromatin remodeling |
| IPI00019353 | Acylglycerol kinase | 2.7 | 2 | 11.1 | 0.008944 | Lipid kinase |
| IPI00232533 | eIF 1A | 2.6 | 3 | 11.8 | 0.001923 | Protein biosynthesis |
| IPI00017726 | Type II HADH | 2.6 | 2 | 12.3 | 0.000319 | Mitochondrial tRNA maturation |
| IPI00398002 | Plectin-1 | 2.6 | 216 | 30.5 | 0 | Structural/regulatory component of cytoskeleton |
| IPI00030847 | TM9SF3 | 2.5 | 3 | 6.3 | 7.02 × 10−29 | Unknown |
| IPI00025831 | CYP3A5 | 2.5 | 4 | 8.6 | 7.24 × 10−28 | Oxidation of a variety of compounds |
| IPI00013122 | p50Cdc37 | 2.5 | 2 | 5.6 | 8.13 × 10−8 | Promotes kinase interaction with the HSP90 complex |
| IPI00847322 | Superoxide dismutase | 2.5 | 8 | 42.8 | 4.65 × 10−60 | Removal of oxygen radicals |
| IPI00554788 | Keratin | 2.4 | 16 | 21.4 | 9.04 × 10−84 | Filament reorganization |
| IPI00642584 | KIAA0090 | 2.4 | 2 | 2.9 | 0.001148 | Unknown |
| IPI00294840 | AIM1 | 2.3 | 3 | 2.7 | 2.50 × 10−8 | Interacts with cytoskeleton |
| IPI00024976 | hTom22 | 2.3 | 3 | 31 | 3.03E-06 | Import of cytoplasmic mitochondrial proteins |
| IPI00759493 | cDNA FLJ76284 | 2.3 | 2 | 9 | 0.004796 | Unknown |
| IPI00237884 | AKAP 250 | 2.3 | 3 | 0.8 | 2.69 × 10−7 | Anchoring protein for protein kinases A and C |
| IPI00021695 | PMCA1 | 2.3 | 3 | 3.7 | 9.83 × 10−17 | Calcium export |
| IPI00465432 | Nodal modulator 2 | 2.2 | 4 | 4.3 | 0.000351 | Nodal signaling |
| IPI00026970 | hSPT16 | 2.2 | 5 | 4.8 | 6.53 × 10−5 | Nucleosome reorganization |
| IPI00027175 | Sorcin | 2.2 | 2 | 11.1 | 0.000415 | Calcium ion binding |
| IPI00220487 | ATP5H | 2.2 | 11 | 44.1 | 6.23 × 10−15 | ATP synthesis |
| IPI00873223 | cDNA FLJ56155 | 2.2 | 2 | 4.6 | 6.81 × 10−12 | Nucleotidyltransferase activity |
| IPI00020557 | LRP | 2.1 | 2 | 0.6 | 6.32 × 10−6 | Involved in endocytosis, phagocytosis, cell growth |
| IPI00003269 | κ-Actin | 2.1 | 6 | 14.1 | 1.00 × 10−19 | Cytoskeleton, cell motility |
| IPI00005537 | L12mt | 2.1 | 4 | 18.2 | 3.92 × 10−9 | Mitochondrial ribosome component |
| IPI00156689 | VAT1 | 2.1 | 6 | 14.8 | 1.04 × 10−22 | Zinc ion binding, oxidoreductase activity |
| IPI00017283 | IleRS | 2.1 | 5 | 4.5 | 0.000219 | Isoleucine-tRNA ligase |
| IPI00018783 | ITPase | 2.1 | 2 | 19.1 | 0.000154 | Nucleotide metabolism |
| IPI00334190 | SLP-2 | 2.1 | 6 | 33.7 | 4.23 × 10−73 | Associated with the cytoskeleton |
| IPI00008982 | P5CS | 2.1 | 4 | 3 | 9.05 × 10−19 | Proline biosynthesis |
| IPI00219097 | HMG-2 | 2.1 | 2 | 7.2 | 0.00367 | Binds ssDNA and unwinds dsDNA |
| IPI00215719 | RPL18 | 2.1 | 2 | 12.8 | 3.42 × 10−7 | Large ribosome subunit |
| IPI00386271 | SLC25A12 | 2.1 | 5 | 11.1 | 2.05 × 10−18 | Calcium-dependent mitochondrial aspartate and glutamate carrier |
| IPI00014424 | eEF1A-2 | 2.1 | 8 | 50.5 | 5.11 × 10−90 | Protein biosynthesis |
| IPI00010845 | CI-23kD | 2.1 | 2 | 4.3 | 0.004255 | Core subunit of the mitochondrial membrane respiratory chain |
| IPI00554481 | 4F2hc | 2.1 | 4 | 4.8 | 2.29 × 10−13 | Amino acid transport, required for cell growth |
| IPI00015476 | ASCT1 | 2.0 | 3 | 4.9 | 0.001305 | Sodium-dependent amino acid transport |
| IPI00296337 | DNPK1 | 2.0 | 18 | 5.8 | 1.01 × 10−53 | Sensor for DNA damage and functions in DNA repair |
| IPI00003925 | PDHE1-B | 2.0 | 6 | 17.3 | 3.61 × 10−14 | Conversion of pyruvate to acetyl-CoA and CO2 |
| IPI00022793 | TP-β | 2.0 | 4 | 8.6 | 1.50 × 10−12 | Fatty acid oxidation |
| IPI00419258 | HMG-1 | 2.0 | 8 | 21.9 | 1.19 × 10−7 | Binds ssDNA and unwinds dsDNA |
| IPI00029264 | Cytochrome c1 | 2.0 | 2 | 8.9 | 4.24 × 10−6 | Mitochondrial respiratory chain |
| IPI00299571 | PDIA6 | 2.0 | 13 | 20.7 | 1.72 × 10−65 | Catalyzes the rearrangement of disulfide bonds |
| IPI00011253 | 40 S ribosomal protein S3 | 2.0 | 15 | 50.6 | 1.30 × 10−18 | Ribosomal protein |
| IPI00029737 | LACS 4 | 2.0 | 15 | 23.5 | 9.19 × 10−33 | Synthesis of cellular lipids and degradation via β-oxidation |
| IPI00021338 | PDC-E2 | 2.0 | 5 | 6.2 | 0.000723 | Catalyzes the conversion of pyruvate to acetyl-CoA and CO2 |
| IPI00328415 | B5R | 2.0 | 5 | 14.6 | 2.29 × 10−15 | Desaturation and elongation of fatty acids, cholesterol biosynthesis |
| IPI00014230 | gC1qBP | 2.0 | 3 | 12.4 | 2.44 × 10−20 | Immune response, complement activation |
| IPI00021048 | Myoferlin | 2.0 | 12 | 5.4 | 2.37 × 10−42 | Plasma membrane repair |
| IPI00871843 | TGM2 | 2.0 | 3 | 4.9 | 2.12 × 10−8 | Catalyzes protein cross-linking, polyamine-protein conjugation |
| IPI00513768 | ATAD3C | 2.0 | 13 | 3.9 | 0.003615 | Nucleoside triphosphatase activity |
| Proteins present in decreased abundance in IBV-infected cells | ||||||
| IPI00873829 | ACAA2 | 5.2 | 2 | 7.8 | 9.51 × 10−9 | Acyltransferase |