Protein name (gene symbol*) A B C Biological function
p53 signaling pathway
Tumor suppressor p53- binding
protein 1 (TP53BP1)
14 160 (29) P70399 Checkpoint signal during mitosis
B-cell lymphoma/leukemia 11B
(BCL11B)
18 194 (29) Q99PV8 Tumor-suppressor protein involved in T-cell lymphomas, BCL-11B (Radiation-induced tumor suppressor gene 1 protein)
Diphthamide biosynthesis protein
1 (DPH1)
14 142 (29) Q5NCQ5 Tumor suppressor in lung and breast cancers
Hypermethylated in cancer 1
protein (HIC1)
15 160 (29) Q9R1Y5 Tumor suppressor (Development of head, face, limbs and ventral body wall)
Chromosome transmission
fidelity protein 8 homolog
(CHTF8)
18 158 (29) B2RYL1 Potential tumor suppressor
MAPK signaling pathway or related proteins
Mitogen-activated protein kinase kinase kinase 1 (MAP3K1) 14 136 (30) Q62925 Activation of JNKK activity up
Neurofibromin 1 (NF1) 14 165 (30) P97526 MAPKKK cascade
RAF proto-oncogene serine
/threonine-protein kinase (RAF1)
13 145 (30) P11345 MAPKKK cascade
Suppression of  tumorigenicity
protein 18 (ST18)
13 145 (30) Q9QX27 Negative regulation of transcription from RNA polymerase II promoter
Apoptosis
Cysteine/serine-rich nuclear
protein 3 (CSRNP3)
12 141 (30) P59055 Apoptosis
Pericentrin (PCNT) 12 144 (30) P48725 Apoptosis
Tripartite motif- containing
protein 35 (TRIM35)
12 134 (30) Q5RKG6 Apoptosis
POU domain, class 3 (POU3F3) 13 150 (30) Q63262 Negative regulation of apoptosis
Potassium voltage-gated channel subfamily  H member 8 (KCNH8) 12 141 (30) Q9QWS8 Negative regulation of apoptosis
Angiogenesis inhibition
Brain-specific angiogenesis
inhibitor 2 (BAI2)
14 166 (30) Q8CGM1 Angiogenesis inhibition
Endomucin (EMCN) 12 137 (30) Q6AY82 Angiogenesis
B cell receptor
Breast cancer anti-estrogen
resistance protein 1 (BCAR1)
13 139 (30) Q63767 B cell receptor signaling pathway
DNA-dependent protein kinase
catalytic subunit (PRKDC)
15 150 (29) P97313 B cell lineage commitment
(serine/threonine-protein kinase)
*Protein IDs uploaded into IPA were converted to the corresponding Entrez Gene symbols for display in Pathways and Networks. Ingenuity's knowledge base contained published findings for both genes and proteins. However, for display purposes, only gene names were used (even when protein IDs were uploaded)
A: Number of matched peptides; B: Mascot score (p = 0.05); C: Protein accession number.
Table 1: Major under-represented proteins in lungs of rats that were orally administered with PQ at 25 mg/kg bw for five times a week for four weeks.