| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species | 
| P11685 | Pulmonary surfactant-associated protein C; SP-C; Pulmonary surfactant-associated proteolipid SPL(Val); | Sftpc; Sftp2; | NP_059038.1; | 194 | rat | 
| O70301 | Persephin; PSP; | Pspn; | NP_037146.1; | 156 | rat | 
| Q3KR66 | Proline/serine-rich coiled-coil protein 1; | Psrc1; Dda3; | NP_001037767.1;XP_006233238.1;XP_006233239.1;XP_006233240.1;XP_006233241.1; | 329 | rat | 
| P46002 | Platelet-activating factor receptor; PAF-R; PAFr; | Ptafr; | NP_445773.1;XP_006239125.1;XP_006239126.1; | 341 | rat | 
| Q00438 | Polypyrimidine tract-binding protein 1; PTB; Heterogeneous nuclear ribonucleoprotein I; hnRNP I; Pyrimidine-binding protein; PYBP; | Ptbp1; Ptb Pybp Tbfii; | NULL | 555 | rat | 
| Q66H20 | Polypyrimidine tract-binding protein 2; Neural polypyrimidine tract-binding protein; PTB-like protein; | Ptbp2; Nptb Ptblp; | NP_001005555.1;XP_006233300.1; | 531 | rat | 
| Q9Z118 | Polypyrimidine tract-binding protein 3; Regulator of differentiation 1; Rod1; | Ptbp3; Rod1; | NP_112636.1; | 523 | rat | 
| A2VD13 | Pentatricopeptide repeat-containing protein 1, mitochondrial; | Ptcd1; | XP_006248933.1; | 686 | rat | 
| P0C6B3 | Pre T-cell antigen receptor alpha; pT-alpha; pTa; pT-alpha-TCR; | Ptcra; | XP_001065627.1;XP_003750700.1; | 199 | rat | 
| Q63530 | Phosphotriesterase-related protein; EC 3.1.-.-; Parathion hydrolase-related protein; Resiniferotoxin-binding phosphotriesterase-related protein; | Pter; Rpr-1; | NP_071560.2;XP_006254353.1; | 349 | rat | 
| Q64305 | Pancreas transcription factor 1 subunit alpha; Pancreas-specific transcription factor 1a; bHLH transcription factor p48; p48 DNA-binding subunit of transcription factor PTF1; PTF1-p48; | Ptf1a; Ptf1p48; | NP_446416.1; | 326 | rat | 
| P22057 | Prostaglandin-H2 D-isomerase; EC 5.3.99.2; Glutathione-independent PGD synthase; Lipocalin-type prostaglandin-D synthase; Prostaglandin-D2 synthase; PGD2 synthase; PGDS; PGDS2; | Ptgds; | NP_037147.1; | 189 | rat | 
| Q62969 | Prostacyclin synthase; EC 5.3.99.4; Prostaglandin I2 synthase; | Ptgis; Cyp8; | NP_113745.1; | 501 | rat | 
| P97584 | Prostaglandin reductase 1; PRG-1; EC 1.3.1.-; 15-oxoprostaglandin 13-reductase; EC 1.3.1.48; Dithiolethione-inducible gene 1 protein; D3T-inducible gene 1 protein; DIG-1; NADP-dependent leukotriene B4 12-hydroxydehydrogenase; EC 1.3.1.74; | Ptgr1; Dig1 Ltb4dh; | NP_620218.1; | 329 | rat | 
| Q5BK81 | Prostaglandin reductase 2; PRG-2; EC 1.3.1.48; 15-oxoprostaglandin 13-reductase; Zinc-binding alcohol dehydrogenase domain-containing protein 1; | Ptgr2; Zadh1; | NP_001015009.1;XP_006240388.1;XP_006240389.1;XP_006240390.1; | 351 | rat | 
| P25961 | Parathyroid hormone/parathyroid hormone-related peptide receptor; PTH/PTHrP type I receptor; PTH/PTHr receptor; Parathyroid hormone 1 receptor; PTH1 receptor; | Pth1r; Pthr Pthr1; | NP_064458.1;XP_006244060.1;XP_006244061.1; | 591 | rat | 
| P70555 | Parathyroid hormone 2 receptor; PTH2 receptor; | Pth2r; Pthr2; | NP_112351.1; | 546 | rat | 
| P13085 | Parathyroid hormone-related protein; PTH-rP; PTHrP; Parathyroid hormone-like protein; PLP; [Cleaved into: Osteostatin]; | Pthlh; Pthrp; | NP_036768.1; | 177 | rat | 
| P04089 | Parathyroid hormone; PTH; Parathyrin; | Pth; | NP_058740.1; | 115 | rat | 
| P06302 | Prothymosin alpha; [Cleaved into: Prothymosin alpha, N-terminally processed; Thymosin alpha]; | Ptma; | NP_068508.1;XP_003751326.1;XP_003752724.1; | 112 | rat | 
