| Peroxisomal membrane protein 4 (24 kDa peroxisomal intrinsic membrane protein) | Pxmp4 Pmp24 | Q9JJW0 | 2 |
| Peroxisomal membrane protein PEX16 (Peroxin-16) (Peroxisomal biogenesis factor 16) | Pex16 | Q91XC9 | 2 |
| Peroxisomal multifunctional enzyme type 2 (MFE-2) (17-beta-hydroxysteroid dehydrogenase 4) (17-beta-HSD 4) (D-bifunctional protein) (DBP) (Multifunctional protein 2) (MPF-2) [Cleaved into: (3R)-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.n12); Enoyl-CoA hydratase 2 (EC 4.2.1.107) (EC 4.2.1.119) (3-alpha,7-alpha,12-alpha-trihydroxy-5-beta-cholest-24-enoyl-CoA hydratase)] | Hsd17b4 Edh17b4 | P51660 | 2 |
| Peroxisomal sarcosine oxidase (PSO) (EC 1.5.3.1) (EC 1.5.3.7) (L-pipecolate oxidase) (L-pipecolic acid oxidase) | Pipox Pso | Q9D826 | 2 |
| PERQ amino acid-rich with GYF domain-containing protein 1 (GRB10-interacting GYF protein 1) | Gigyf1 Kiaa4110 Perq1 | Q99MR1 | 2 |
| PH-interacting protein | Phip | F8VQ93 | 2 |
| PHD finger protein 11A (PHD finger protein 11) (PHD finger protein 11-like) | Phf11a Phf11 Phf11-4 Phf11l | Q8BVM9 | 2 |
| PHD finger protein 12 (PHD factor 1) (Pf1) | Phf12 Kiaa1523 | Q5SPL2 | 2 |
| PHD finger protein 20 (Hepatocellular carcinoma-associated antigen 58 homolog) | Phf20 Hca58 | Q8BLG0 | 2 |
| PHD finger protein 20-like protein 1 | Phf20l1 | Q8CCJ9 | 2 |
| PHD finger protein 23 (PDH-containing protein JUNE-1) | Phf23 | Q8BSN5 | 2 |
| Phenylalanine--tRNA ligase alpha subunit (EC 6.1.1.20) (Phenylalanyl-tRNA synthetase alpha subunit) (PheRS) | Farsa Farsla | Q8C0C7 | 2 |
| Phosducin-like protein 2 (MgcPhLP) (Phosducin-like protein similar 1) | Pdcl2 | Q78Y63 | 2 |
| Phosducin-like protein 3 (Viral IAP-associated factor 1) (VIAF-1) | Pdcl3 Viaf1 | Q8BVF2 | 2 |
| Phosphatidylcholine-sterol acyltransferase (EC 2.3.1.43) (Lecithin-cholesterol acyltransferase) (Phospholipid-cholesterol acyltransferase) | Lcat | P16301 | 2 |
| Phosphatidylcholine:ceramide cholinephosphotransferase 1 (EC 2.7.8.27) (Protein Mob) (Sphingomyelin synthase 1) (Transmembrane protein 23) | Sgms1 Tmem23 | Q8VCQ6 | 2 |
| Phosphatidylinositol 4-kinase type 2-alpha (EC 2.7.1.67) (Phosphatidylinositol 4-kinase type II-alpha) | Pi4k2a | Q2TBE6 | 2 |
| Phosphatidylinositol glycan anchor biosynthesis class U protein (Phosphatidylinositol glycan anchor biosynthesis, class U) | Pigu Cdc91l1 | Q3TAA8 | 2 |
| Phosphatidylinositol-glycan biosynthesis class F protein (PIG-F) | Pigf | O09101 | 2 |
| Phosphatidylinositol-glycan biosynthesis class X protein (PIG-X) | Pigx | Q99LV7 | 2 |
| Phosphatidylserine synthase 1 (PSS-1) (PtdSer synthase 1) (EC 2.7.8.29) (Serine-exchange enzyme I) | Ptdss1 Pssa | Q99LH2 | 2 |
| Phosphoacetylglucosamine mutase (PAGM) (EC 5.4.2.3) (Acetylglucosamine phosphomutase) (N-acetylglucosamine-phosphate mutase) (Phosphoglucomutase-3) (PGM 3) | Pgm3 Agm1 Pgm-3 | Q9CYR6 | 2 |
| Phosphoenolpyruvate carboxykinase [GTP], mitochondrial (PEPCK-M) (EC 4.1.1.32) (Phosphoenolpyruvate carboxylase) | Pck2 | Q8BH04 | 2 |
| Phosphoglucomutase-like protein 5 | Pgm5 | Q8BZF8 | 2 |
| Phospholemman (FXYD domain-containing ion transport regulator 1) | Fxyd1 Plm | Q9Z239 | 2 |
| Phosphomannomutase 2 (PMM 2) (EC 5.4.2.8) | Pmm2 | Q9Z2M7 | 2 |
| Phosphomevalonate kinase (PMKase) (EC 2.7.4.2) | Pmvk | Q9D1G2 | 2 |
| Phosphoribosyl pyrophosphate synthase-associated protein 2 (PRPP synthase-associated protein 2) (41 kDa phosphoribosypyrophosphate synthetase-associated protein) (PAP41) | Prpsap2 | Q8R574 | 2 |
| Phosphorylase b kinase gamma catalytic chain, skeletal muscle/heart isoform (EC 2.7.11.19) (Phosphorylase kinase subunit gamma-1) (Serine/threonine-protein kinase PHKG1) (EC 2.7.11.1) (EC 2.7.11.26) | Phkg1 Phkg | P07934 | 2 |
| Phosphoserine phosphatase (PSP) (PSPase) (EC 3.1.3.3) (O-phosphoserine phosphohydrolase) | Psph | Q99LS3 | 2 |
| Pigment epithelium-derived factor (PEDF) (Caspin) (Serpin F1) (Stromal cell-derived factor 3) (SDF-3) | Serpinf1 Pedf Sdf3 | P97298 | 2 |
| PIH1 domain-containing protein 1 (Nucleolar protein 17 homolog) | Pih1d1 Nop17 | Q9CQJ2 | 2 |
| Pituitary adenylate cyclase-activating polypeptide (PACAP) [Cleaved into: PACAP-related peptide (PRP-48); Pituitary adenylate cyclase-activating polypeptide 27 (PACAP-27) (PACAP27); Pituitary adenylate cyclase-activating polypeptide 38 (PACAP-38) (PACAP38)] | Adcyap1 Pacap | O70176 | 2 |
| Pla2g4c protein (Protein Pla2g4c) | Pla2g4c | Q08EC7 | 2 |
| Plasma membrane calcium-transporting ATPase 2 (PMCA2) (EC 3.6.3.8) (Plasma membrane calcium ATPase isoform 2) (Plasma membrane calcium pump isoform 2) | Atp2b2 Pmca2 | Q9R0K7 | 2 |
| Plasma serine protease inhibitor (Plasminogen activator inhibitor 3) (PAI-3) (PAI3) (Protein C inhibitor) (PCI) (Serpin A5) | Serpina5 Pci | P70458 | 2 |
| Plasminogen activator inhibitor 1 (Serine (Or cysteine) peptidase inhibitor, clade E, member 1, isoform CRA_b) | Serpine1 mCG_18018 | G5E899 | 2 |
| Platelet endothelial aggregation receptor 1 (mPEAR1) (Jagged and Delta protein) (Protein Jedi) (Multiple epidermal growth factor-like domains protein 12) (Multiple EGF-like domains protein 12) | Pear1 Jedi Megf12 | Q8VIK5 | 2 |
| Platelet glycoprotein 4 (Glycoprotein IIIb) (GPIIIB) (PAS IV) (PAS-4) (Platelet glycoprotein IV) (GPIV) (CD antigen CD36) | Cd36 | Q08857 | 2 |
| Platelet-activating factor acetylhydrolase IB subunit beta (EC 3.1.1.47) (PAF acetylhydrolase 30 kDa subunit) (PAF-AH 30 kDa subunit) (PAF-AH subunit beta) (PAFAH subunit beta) | Pafah1b2 Pafahb | Q61206 | 2 |
| Platelet-activating factor acetylhydrolase IB subunit gamma (EC 3.1.1.47) (PAF acetylhydrolase 29 kDa subunit) (PAF-AH 29 kDa subunit) (PAF-AH subunit gamma) (PAFAH subunit gamma) | Pafah1b3 Pafahg | Q61205 | 2 |
| Platelet-derived growth factor subunit A (PDGF subunit A) (PDGF-1) (Platelet-derived growth factor A chain) (Platelet-derived growth factor alpha polypeptide) | Pdgfa | P20033 | 2 |
| Pleckstrin homology domain-containing family A member 4 | Plekha4 | D3Z3Y7 | 2 |
| Pleckstrin homology domain-containing family B member 2 (PH domain-containing family B member 2) (Evectin-2) | Plekhb2 Evt2 | Q9QZC7 | 2 |
| Pleckstrin homology domain-containing family O member 2 (PH domain-containing family O member 2) (Pleckstrin homology domain-containing family Q member 1) (PH domain-containing family Q member 1) | Plekho2 Plekhq1 | Q8K124 | 2 |
| Plexin-B3 (Plexin-6) | Plxnb3 Kiaa1206 Plxn6 | Q9QY40 | 2 |
| Podocan-like protein 1 | Podnl1 Gm506 | Q6P3Y9 | 2 |
| Poly [ADP-ribose] polymerase 11 (PARP-11) (EC 2.4.2.30) (ADP-ribosyltransferase diphtheria toxin-like 11) (ARTD11) | Parp11 | Q8CFF0 | 2 |
| Poly [ADP-ribose] polymerase 14 (PARP-14) (EC 2.4.2.30) (ADP-ribosyltransferase diphtheria toxin-like 8) (ARTD8) (Collaborator of STAT6) (CoaSt6) | Parp14 Kiaa1268 | Q2EMV9 | 2 |
| Poly [ADP-ribose] polymerase 2 (PARP-2) (mPARP-2) (EC 2.4.2.30) (ADP-ribosyltransferase diphtheria toxin-like 2) (ARTD2) (NAD(+) ADP-ribosyltransferase 2) (ADPRT-2) (Poly[ADP-ribose] synthase 2) (pADPRT-2) | Parp2 Adprt2 Adprtl2 Aspartl2 | O88554 | 2 |
| Poly(A) polymerase gamma (PAP-gamma) (EC 2.7.7.19) (Polynucleotide adenylyltransferase gamma) (SRP RNA 3'-adenylating enzyme) | Papolg | Q6PCL9 | 2 |
| Poly(rC)-binding protein 4 (Alpha-CP4) | Pcbp4 | P57724 | 2 |
| Poly(U)-binding-splicing factor PUF60 (60 kDa poly(U)-binding-splicing factor) | Puf60 | Q3UEB3 | 2 |
| Polyadenylate-binding protein-interacting protein 2 (PABP-interacting protein 2) (PAIP-2) (Poly(A)-binding protein-interacting protein 2) | Paip2 | Q9D6V8 | 2 |
| Polycomb group RING finger protein 1 (Nervous system Polycomb-1) (NSPc1) (RING finger protein 68) | Pcgf1 Nspc1 Rnf68 | Q8R023 | 2 |
| Polyglutamine-binding protein 1 (PQBP-1) (38 kDa nuclear protein containing a WW domain) (Npw38) (Polyglutamine tract-binding protein 1) | Pqbp1 Npw38 | Q91VJ5 | 2 |
| Polymerase I and transcript release factor (Cav-p60) (Cavin-1) | Ptrf | O54724 | 2 |
| Polynucleotide 5'-hydroxyl-kinase NOL9 (EC 2.7.1.-) (Nucleolar protein 9) | Nol9 | Q3TZX8 | 2 |
| Porimin (Transmembrane protein 123) | Tmem123 | Q91Z22 | 2 |
| Potassium channel regulatory protein (Potassium channel regulator) (Protein CLLD4) | Kcnrg Clld4 | Q2TUM3 | 2 |
| Potassium channel subfamily K member 13 (Tandem pore domain halothane-inhibited potassium channel 1) (THIK-1) | Kcnk13 Gm1570 | Q8R1P5 | 2 |
| Potassium channel subfamily K member 3 (Acid-sensitive potassium channel protein TASK-1) (Cardiac two pore background K(+) channel) (TWIK-related acid-sensitive K(+) channel 1) (Two pore potassium channel KT3.1) (Two pore K(+) channel KT3.1) (cTBAK-1) | Kcnk3 Ctbak Task Task1 | O35111 | 2 |
| Potassium channel tetramerisation domain containing 14 (Potassium channel tetramerization domain containing 14) (Protein Kctd14) | Kctd14 mCG_141304 | Q5EER8 | 2 |
| Potassium voltage-gated channel subfamily B member 1 (Voltage-gated potassium channel subunit Kv2.1) (mShab) | Kcnb1 | Q03717 | 2 |
| Potassium voltage-gated channel subfamily E member 1 (Delayed rectifier potassium channel subunit IsK) (mISK) (IKs producing slow voltage-gated potassium channel subunit beta Mink) (Minimal potassium channel) | Kcne1 | P23299 | 2 |
| Potassium voltage-gated channel subfamily G member 3 (Voltage-gated potassium channel subunit Kv10.1) (Voltage-gated potassium channel subunit Kv6.3) | Kcng3 | P59053 | 2 |
| Potassium voltage-gated channel subfamily V member 2 (Voltage-gated potassium channel subunit Kv8.2) | Kcnv2 | Q8CFS6 | 2 |
| Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 3 (Hyperpolarization-activated cation channel 3) (HAC-3) | Hcn3 Hac3 | O88705 | 2 |
| PR domain zinc finger protein 14 (EC 2.1.1.-) (PR domain-containing protein 14) | Prdm14 | E9Q3T6 | 2 |
| PR domain zinc finger protein 8 (EC 2.1.1.-) (PR domain-containing protein 8) | Prdm8 | Q8BZ97 | 2 |
| Pre-B-cell leukemia transcription factor 2 (Homeobox protein PBX2) | Pbx2 | O35984 | 2 |
| Pre-mRNA-processing factor 17 (Cell division cycle 40 homolog) (PRP17 homolog) | Cdc40 Prp17 Prpf17 | Q9DC48 | 2 |
| Pre-mRNA-processing factor 40 homolog B (Huntingtin yeast partner C) (Huntingtin-interacting protein C) | Prpf40b Hypc | Q80W14 | 2 |
| Pre-mRNA-processing-splicing factor 8 (Splicing factor Prp8) | Prpf8 Prp8 | Q99PV0 | 2 |
| Pre-mRNA-splicing factor 18 (PRP18 homolog) | Prpf18 Prp18 | Q8BM39 | 2 |
| Pre-mRNA-splicing factor 38B | Prpf38b | Q80SY5 | 2 |
| Pre-mRNA-splicing regulator WTAP (Female-lethal(2)D homolog) (WT1-associated protein) (Wilms tumor 1-associating protein) | Wtap | Q9ER69 | 2 |
| Pre-rRNA-processing protein TSR1 homolog | Tsr1 Kiaa1401 | Q5SWD9 | 2 |
| Predicted gene, EG236749 (Protein Gm4907) | Gm4907 EG236749 | B1AXB9 | 2 |
| Prefoldin subunit 3 (Von Hippel-Lindau-binding protein 1) (VBP-1) (VHL-binding protein 1) | Vbp1 Pfdn3 | P61759 | 2 |
| PRELI domain-containing protein 1, mitochondrial (Px19-like protein) | Prelid1 Preli | Q8R107 | 2 |
| Prenylated Rab acceptor protein 1 (PRA1 family protein 1) (Prenylin) | Rabac1 Pra Pra1 Praf1 | Q9Z0S9 | 2 |
| Presequence protease, mitochondrial (EC 3.4.24.-) (Pitrilysin metalloproteinase 1) | Pitrm1 Kiaa1104 Ntup1 | Q8K411 | 2 |
| Presqualene diphosphate phosphatase (EC 3.1.3.-) (Phosphatidic acid phosphatase type 2 domain-containing protein 2) | Ppapdc2 | Q9D4F2 | 2 |
| PRKR-interacting protein 1 (Protein C114) | Prkrip1 | Q9CWV6 | 2 |
| Pro-FMRFamide-related neuropeptide FF (FMRFamide-related peptides) [Cleaved into: Neuropeptide SF (NPSF); Neuropeptide FF (NPFF); Neuropeptide AF-like (NPAF)] | Npff | Q9WVA8 | 2 |
| Pro-opiomelanocortin (POMC) (Corticotropin-lipotropin) [Cleaved into: NPP; Melanotropin gamma (Gamma-MSH); Corticotropin (Adrenocorticotropic hormone) (ACTH); Melanotropin alpha (Alpha-MSH); Corticotropin-like intermediary peptide (CLIP); Lipotropin beta (Beta-LPH); Lipotropin gamma (Gamma-LPH); Melanotropin beta (Beta-MSH); Beta-endorphin; Met-enkephalin] | Pomc Pomc1 | P01193 | 2 |
| Probable ATP-dependent RNA helicase DDX28 (EC 3.6.4.13) (Mitochondrial DEAD box protein 28) | Ddx28 | Q9CWT6 | 2 |
| Probable ATP-dependent RNA helicase DDX4 (EC 3.6.4.13) (DEAD box protein 4) (Mvh) (Vasa homolog) | Ddx4 Vasa | Q61496 | 2 |
| Probable ATP-dependent RNA helicase DDX46 (EC 3.6.4.13) (DEAD box protein 46) | Ddx46 Kiaa0801 | Q569Z5 | 2 |
| Probable ATP-dependent RNA helicase DDX52 (EC 3.6.4.13) (ATP-dependent RNA helicase ROK1-like) (DEAD box protein 52) | Ddx52 Rok1 | Q8K301 | 2 |
| Probable C->U-editing enzyme APOBEC-2 (EC 3.5.4.-) | Apobec2 | Q9WV35 | 2 |
| Probable E3 ubiquitin-protein ligase TRIM8 (EC 6.3.2.-) (Glioblastoma-expressed RING finger protein) (RING finger protein 27) (Tripartite motif-containing protein 8) | Trim8 Gerp Rnf27 | Q99PJ2 | 2 |
| Probable G-protein coupled receptor 88 (Striatum-specific G-protein coupled receptor) | Gpr88 Strg | Q9EPB7 | 2 |
| Probable helicase senataxin (EC 3.6.4.-) (Amyotrophic lateral sclerosis 4 protein homolog) (SEN1 homolog) | Setx Als4 Kiaa0625 | A2AKX3 | 2 |
| Probable histidine--tRNA ligase, mitochondrial (EC 6.1.1.21) (Histidine--tRNA ligase-like) (Histidyl-tRNA synthetase) (HisRS) | Hars2 Harsl | Q99KK9 | 2 |
| Probable hydrolase PNKD (EC 3.-.-.-) (Myofibrillogenesis regulator 1) (MR-1) (Paroxysmal nonkinesiogenic dyskinesia protein) | Pnkd Brp17 Kiaa1184 Mr1 Tahccp2 Fksg19 MNCb-5687 | Q69ZP3 | 2 |
| Probable inactive ribonuclease-like protein 12 | Rnase12 | Q5GAM8 | 2 |
| Probable phospholipid-transporting ATPase IA (EC 3.6.3.1) (ATPase class I type 8A member 1) (Chromaffin granule ATPase II) | Atp8a1 Atpc1 | P70704 | 2 |
| Probable phospholipid-transporting ATPase IIB (EC 3.6.3.1) (ATPase class II type 9B) | Atp9b | P98195 | 2 |