| Probable C-mannosyltransferase DPY19L3 (EC 2.4.1.-) (Dpy-19-like protein 3) (Protein dpy-19 homolog 3) | DPY19L3 | Q6ZPD9 | 1 |
| Probable C-mannosyltransferase DPY19L4 (EC 2.4.1.-) (Dpy-19-like protein 4) (Protein dpy-19 homolog 4) | DPY19L4 | Q7Z388 | 1 |
| Probable cation-transporting ATPase 13A4 (Fragment) | ATP13A4 | H7C1P5 | 1 |
| Probable crossover junction endonuclease EME2 (EC 3.1.22.-) | EME2 | A4GXA9 | 1 |
| Probable E3 ubiquitin-protein ligase DTX2 (Fragment) | DTX2 | C9IYX1 | 1 |
| Probable E3 ubiquitin-protein ligase HECTD4 | HECTD4 | J3KPF0 | 1 |
| Probable E3 ubiquitin-protein ligase HERC3 (Fragment) | HERC3 | C9JKA7 | 1 |
| Probable E3 ubiquitin-protein ligase MID2 (EC 2.3.2.27) (Midin-2) (Midline defect 2) (Midline-2) (RING finger protein 60) (RING-type E3 ubiquitin transferase MID2) (Tripartite motif-containing protein 1) | MID2 FXY2 RNF60 TRIM1 | Q9UJV3 | 1 |
| Probable E3 ubiquitin-protein ligase RNF217 (EC 2.3.2.-) (IBR domain-containing protein 1) (RING finger protein 217) | RNF217 C6orf172 IBRDC1 | Q8TC41 | 1 |
| Probable E3 ubiquitin-protein ligase RNF217 (Fragment) | RNF217 | H0YB95 | 1 |
| Probable E3 ubiquitin-protein ligase TRIML2 (EC 2.3.2.27) (RING-type E3 ubiquitin transferase TRIML2) (SPRY domain-containing protein 6) (Tripartite motif family-like protein 2) | TRIML2 SPRYD6 | Q8N7C3 | 1 |
| Probable G-protein coupled receptor 101 | GPR101 | Q96P66 | 1 |
| Probable G-protein coupled receptor 141 (G-protein coupled receptor PGR13) | GPR141 PGR13 | Q7Z602 | 1 |
| Probable G-protein coupled receptor 156 (G-protein coupled receptor PGR28) (GABAB-related G-protein coupled receptor) | GPR156 GABABL PGR28 | Q8NFN8 | 1 |
| Probable G-protein coupled receptor 162 (Gene-rich cluster gene A protein) | GPR162 GRCA | Q16538 | 1 |
| Probable G-protein coupled receptor 19 (GPR-NGA) | GPR19 | Q15760 | 1 |
| Probable G-protein coupled receptor 33 | GPR33 | Q49SQ1 | 1 |
| Probable G-protein coupled receptor 34 | GPR34 | Q9UPC5 | 1 |
| Probable imidazolonepropionase (EC 3.5.2.7) (Amidohydrolase domain-containing protein 1) | AMDHD1 HMFT1272 | Q96NU7 | 1 |
| Probable inactive 1-aminocyclopropane-1-carboxylate synthase-like protein 2 (ACC synthase-like protein 2) | ACCSL | Q4AC99 | 1 |
| Probable inactive ribonuclease-like protein 12 | RNASE12 | Q5GAN4 | 1 |
| Probable inactive ribonuclease-like protein 13 | RNASE13 | Q5GAN3 | 1 |
| Probable methyltransferase-like protein 15 (EC 2.1.1.-) (Methyltransferase 5 domain-containing protein 1) | METTL15 METT5D1 | A6NJ78 | 1 |
| Probable N-acetyltransferase 16 (EC 2.3.1.-) | NAT16 C7orf52 | Q8N8M0 | 1 |
| Probable palmitoyltransferase ZDHHC19 (EC 2.3.1.225) (Zinc finger DHHC domain-containing protein 19) (DHHC-19) | ZDHHC19 | Q8WVZ1 | 1 |
| Probable palmitoyltransferase ZDHHC8 (EC 2.3.1.225) (Zinc finger DHHC domain-containing protein 8) (DHHC-8) (Zinc finger protein 378) | ZDHHC8 KIAA1292 ZDHHCL1 ZNF378 | Q9ULC8 | 1 |
| Probable peptidyl-tRNA hydrolase | PTRH1 | C9J7Z1 | 1 |
| Probable peptidyl-tRNA hydrolase (PTH) (EC 3.1.1.29) | PTRH1 C9orf115 | Q86Y79 | 1 |
| Probable protein phosphatase 1N | PPM1N | E7ENL9 | 1 |
| Probable ribonuclease 11 (RNase 11) (EC 3.1.27.-) | RNASE11 C14orf6 UNQ5832/PRO19669 | Q8TAA1 | 1 |
| Probable ribonuclease ZC3H12B (EC 3.1.-.-) (MCP-induced protein 2) (Zinc finger CCCH domain-containing protein 12B) | ZC3H12B CXorf32 MCPIP2 | Q5HYM0 | 1 |
| Probable ribonuclease ZC3H12C (EC 3.1.-.-) (MCP-induced protein 3) (Zinc finger CCCH domain-containing protein 12C) | ZC3H12C KIAA1726 MCPIP3 | B4DR47 | 1 |
| Probable RNA-binding protein EIF1AD | EIF1AD | E9PQD0 | 1 |
| Probable serine carboxypeptidase CPVL (Fragment) | CPVL | H7C0X5 | 1 |
| Probable tRNA methyltransferase 9B (Fragment) | TRMT9B | E9PK20 | 1 |
| Probable tRNA N6-adenosine threonylcarbamoyltransferase, mitochondrial (EC 2.3.1.234) (N6-L-threonylcarbamoyladenine synthase) (t(6)A synthase) (O-sialoglycoprotein endopeptidase-like protein 1) (t(6)A37 threonylcarbamoyladenosine biosynthesis protein OSGEPL1) (tRNA threonylcarbamoyladenosine biosynthesis protein OSGEPL1) | OSGEPL1 GCP1 | Q9H4B0 | 1 |
| Probable tRNA pseudouridine synthase 2 (EC 5.4.99.-) | TRUB2 | O95900 | 1 |
| Probable ubiquitin carboxyl-terminal hydrolase FAF-X (EC 3.4.19.12) (Deubiquitinating enzyme FAF-X) (Fat facets in mammals) (hFAM) (Fat facets protein-related, X-linked) (Ubiquitin thioesterase FAF-X) (Ubiquitin-specific protease 9, X chromosome) (Ubiquitin-specific-processing protease FAF-X) | USP9X DFFRX FAM USP9 | Q8WX12 | 1 |
| Probable ubiquitin carboxyl-terminal hydrolase MINDY-4 (EC 3.4.19.12) (Probable deubiquitinating enzyme MINDY-4) | MINDY4 C7orf67 FAM188B | Q4G0A6 | 1 |
| Probetacellulin [Cleaved into: Betacellulin (BTC)] | BTC | P35070 | 1 |
| Procollagen C-endopeptidase enhancer 2 | PCOLCE2 | C9JYX9 | 1 |
| Procollagen galactosyltransferase 2 | COLGALT2 | Q5SXQ5 | 1 |
| Procollagen galactosyltransferase 2 (EC 2.4.1.50) (Collagen beta(1-O)galactosyltransferase 2) (Glycosyltransferase 25 family member 2) (Hydroxylysine galactosyltransferase 2) | COLGALT2 C1orf17 GLT25D2 KIAA0584 | Q8IYK4 | 1 |
| Procollagen-lysine,2-oxoglutarate 5-dioxygenase 3 (Fragment) | PLOD3 | H7C2S8 | 1 |
| Proenkephalin-A (Fragment) | PENK | E5RFR1 | 1 |
| Profilin | PFN2 hCG_21343 | G5E9Q6 | 1 |
| Profilin | PFN2 | C9J2N0 | 1 |
| Progesterone receptor (PR) (Nuclear receptor subfamily 3 group C member 3) | PGR NR3C3 | P06401 | 1 |
| Programmed cell death protein 10 (Fragment) | PDCD10 | C9JSA3 | 1 |
| Programmed cell death protein 10 (Fragment) | PDCD10 | H7C5M9 | 1 |
| Programmed cell death protein 5 | PDCD5 | K7EQA1 | 1 |
| Progressive ankylosis protein homolog | ANKH | D6RGI5 | 1 |
| Progressive rod-cone degeneration protein | PRCD | Q00LT1 | 1 |
| Prohibitin (Fragment) | PHB | E7ESE2 | 1 |
| Prohibitin (Fragment) | PHB | C9JZ20 | 1 |
| Prohibitin (Fragment) | PHB | D6RBK0 | 1 |
| Prohibitin-2 | PHB2 | J3KPX7 | 1 |
| Prohibitin-2 | PHB2 | F5H2D2 | 1 |
| Prohibitin-2 | PHB2 | F5H0C5 | 1 |
| Prolactin receptor (PRL-R) | PRLR | P16471 | 1 |
| Prolactin-releasing peptide receptor (PrRP receptor) (PrRPR) (G-protein coupled receptor 10) (hGR3) | PRLHR GPR10 GR3 | P49683 | 1 |
| Proliferation-associated protein 2G4 | PA2G4 | F8VR77 | 1 |
| Proliferation-inducing gene 20 protein | 0 | Q5J7V8 | 1 |
| Proline dehydrogenase 1, mitochondrial (EC 1.5.5.2) (Proline oxidase) (Proline oxidase 2) (p53-induced gene 6 protein) | PRODH PIG6 POX2 PRODH2 | O43272 | 1 |
| Proline-rich acidic protein 1 (Epididymis tissue protein Li 178) (Uterine-specific proline-rich acidic protein) | PRAP1 UPA UNQ608/PRO1195 | Q96NZ9 | 1 |
| Proline-rich AKT1 substrate 1 (Fragment) | AKT1S1 | M0R2V8 | 1 |
| Proline-rich basic protein 1 | PROB1 C5orf65 | E7EW31 | 1 |
| Proline-rich nuclear receptor coactivator 1 (Proline-rich protein 2) (Protein B4-2) | PNRC1 PROL2 | Q7Z5N0 | 1 |
| Proline-rich protein 11 (Fragment) | PRR11 | J3QKY4 | 1 |
| Proline-rich protein 15 | PRR15 | Q8IV56 | 1 |
| Proline-rich protein 23B | PRR23B | Q6ZRT6 | 1 |
| Proline-rich protein 3 (MHC class I region proline-rich protein CAT56) | PRR3 CAT56 | P79522 | 1 |
| Proline-rich protein 30 (Fragment) | PRR30 | C9JVA3 | 1 |
| Proline-rich protein 36 (Fragment) | PRR36 | A0A096LNU1 | 1 |
| Proline-rich transmembrane protein 1 (Dispanin subfamily D member 1) (DSPD1) | PRRT1 C6orf31 NG5 | Q99946 | 1 |
| Proline-rich transmembrane protein 4 | PRRT4 | C9JH25 | 1 |
| Proline/serine-rich coiled-coil protein 1 | PSRC1 DDA3 FP3214 | Q6PGN9 | 1 |
| Prolyl 3-hydroxylase 1 (Fragment) | P3H1 | E2QRI1 | 1 |
| Prolyl 3-hydroxylase OGFOD1 | OGFOD1 | A0A0A0MTR2 | 1 |
| Prolyl endopeptidase FAP (Fragment) | FAP | C9J131 | 1 |
| Prolyl endopeptidase FAP (Fragment) | FAP | H7C4D9 | 1 |
| Promethin (Transmembrane protein 159) | TMEM159 | Q96B96 | 1 |
| Properdin (Fragment) | CFP | C9J7V5 | 1 |
| Propionyl Coenzyme A carboxylase, beta polypeptide variant (Fragment) | 0 | Q59GV0 | 1 |
| Propionyl-CoA carboxylase beta chain, mitochondrial | PCCB | E7ENC1 | 1 |
| Propionyl-CoA carboxylase beta chain, mitochondrial | PCCB | E7ETT1 | 1 |
| Propionyl-CoA carboxylase beta chain, mitochondrial | PCCB | E9PEC3 | 1 |
| Proprotein convertase subtilisin/kexin type 6 | PCSK6 | H7BXT3 | 1 |
| Prosaposin | PSAP | C9JIZ6 | 1 |
| Prospero homeobox protein 1 (Homeobox prospero-like protein PROX1) (PROX-1) | PROX1 | Q92786 | 1 |
| Prospero homeobox protein 2 (Homeobox prospero-like protein PROX2) (PROX-2) | PROX2 | Q3B8N5 | 1 |
| Prostaglandin E synthase 3 (EC 5.3.99.3) (Cytosolic prostaglandin E2 synthase) (cPGES) (Hsp90 co-chaperone) (Progesterone receptor complex p23) (Telomerase-binding protein p23) | PTGES3 P23 TEBP | B4DP11 | 1 |
| Prostaglandin E2 receptor EP3 subtype (PGE receptor EP3 subtype) (PGE2 receptor EP3 subtype) (PGE2-R) (Prostanoid EP3 receptor) | PTGER3 | P43115 | 1 |
| Prostaglandin G/H synthase 1 (EC 1.14.99.1) (Cyclooxygenase-1) (COX-1) (Prostaglandin H2 synthase 1) (PGH synthase 1) (PGHS-1) (PHS 1) (Prostaglandin-endoperoxide synthase 1) | PTGS1 COX1 | B4E2S5 | 1 |
| Prostaglandin G/H synthase 2 (EC 1.14.99.1) (Cyclooxygenase-2) (COX-2) (PHS II) (Prostaglandin H2 synthase 2) (PGH synthase 2) (PGHS-2) (Prostaglandin-endoperoxide synthase 2) | PTGS2 COX2 | P35354 | 1 |
| Prostaglandin reductase 1 (Fragment) | PTGR1 | F2Z3J9 | 1 |
| Prostaglandin reductase 1 (PRG-1) (EC 1.3.1.-) (15-oxoprostaglandin 13-reductase) (EC 1.3.1.48) (NADP-dependent leukotriene B4 12-hydroxydehydrogenase) (EC 1.3.1.74) | PTGR1 LTB4DH | F5GY50 | 1 |
| Prostaglandin reductase 1 (PRG-1) (EC 1.3.1.-) (15-oxoprostaglandin 13-reductase) (EC 1.3.1.48) (NADP-dependent leukotriene B4 12-hydroxydehydrogenase) (EC 1.3.1.74) | PTGR1 LTB4DH | B4DPK3 | 1 |
| Prostaglandin reductase 1 (PRG-1) (EC 1.3.1.-) (15-oxoprostaglandin 13-reductase) (EC 1.3.1.48) (NADP-dependent leukotriene B4 12-hydroxydehydrogenase) (EC 1.3.1.74) | PTGR1 LTB4DH | Q8IYQ0 | 1 |
| Prostamide/prostaglandin F synthase (Fragment) | FAM213B | J3QKK8 | 1 |