| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| Q5E9G3 | Proteasome activator complex subunit 2; Proteasome activator 28 subunit beta; PA28b; PA28beta; | PSME2; | NP_001014889.1; | 239 | cow |
| F1MKX4 | Proteasome activator complex subunit 4; Proteasome activator PA200; | PSME4; | NULL | 1845 | cow |
| Q3SX30 | Proteasome inhibitor PI31 subunit; | PSMF1; | NP_001069946.1;XP_005214916.1; | 270 | cow |
| Q0P5F2 | Proteasome assembly chaperone 1; | PSMG1; | NP_001069815.1; | 288 | cow |
| Q2NL24 | Proteasome assembly chaperone 2; | PSMG2; | NP_001039830.1; | 264 | cow |
| Q2NKS3 | Proteasome assembly chaperone 3; | PSMG3; | NP_001039524.1;XP_005225127.1; | 122 | cow |
| Q9XT97 | Presenilin-1; PS-1; EC 3.4.23.-; [Cleaved into: Presenilin-1 NTF subunit; Presenilin-1 CTF subunit; Presenilin-1 CTF12 (PS1-CTF12)]; | PSEN1; | NP_777146.1;XP_005211988.1;XP_005211989.1;XP_005211990.1;XP_005211991.1; | 478 | cow |
| Q9XT96 | Presenilin-2; PS-2; EC 3.4.23.-; [Cleaved into: Presenilin-2 NTF subunit; Presenilin-2 CTF subunit]; | PSEN2; | NP_776865.2;XP_005216851.1; | 449 | cow |
| P15781 | Pulmonary surfactant-associated protein B; SP-B; 6 kDa protein; Pulmonary surfactant-associated proteolipid SPL(Phe); | SFTPB; SFTP3; | NP_001068779.1;XP_005212817.1; | 373 | cow |
| Q1LZD9 | Paraspeckle component 1; | PSPC1; | NP_001068745.1; | 520 | cow |
| P15783 | Pulmonary surfactant-associated protein C; SP-C; Pulmonary surfactant-associated proteolipid SPL(Val); | SFTPC; SFTP2; | NP_776887.1; | 190 | cow |
| Q29RJ9 | Proline/serine-rich coiled-coil protein 1; | PSRC1; | NP_001039966.1;XP_005204237.1;XP_005204238.1;XP_005204239.1;XP_005204240.1;XP_005204241.1; | 326 | cow |
| E1BHC3 | Protein PET100 homolog, mitochondrial; | PET100; | XP_002688903.1;XP_874611.1; | 76 | cow |
| Q9TTY5 | Platelet-activating factor receptor; PAF-R; PAFr; | PTAFR; PAFR; | NP_001035628.1; | 342 | cow |
| Q8WN55 | Polypyrimidine tract-binding protein 1; PTB; | PTBP1; | NP_776867.1; | 531 | cow |
| Q3SZ55 | Pentatricopeptide repeat-containing protein 2, mitochondrial; | PTCD2; | NP_001030375.1; | 384 | cow |
| Q2KI62 | Pentatricopeptide repeat domain-containing protein 3, mitochondrial; 28S ribosomal protein S39, mitochondrial; MRP-S39; | PTCD3; MRPS39; | NP_001039499.1; | 688 | cow |
| Q0VCS0 | Pre T-cell antigen receptor alpha; pT-alpha; pTa; pT-alpha-TCR; | PTCRA; | NP_001069101.1;XP_005223477.1; | 319 | cow |
| A6QLJ8 | Phosphotriesterase-related protein; EC 3.1.-.-; Parathion hydrolase-related protein; | PTER; | NP_001094752.1;XP_005214341.1;XP_005214342.1; | 349 | cow |
| O02853 | 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_777216.1; | 191 | cow |
