| Peptidyl-prolyl cis-trans isomerase FKBP6 (PPIase FKBP6) (EC 5.2.1.8) (36 kDa FK506-binding protein) (36 kDa FKBP) (FKBP-36) (FK506-binding protein 6) (FKBP-6) (Immunophilin FKBP36) (Rotamase) | Fkbp6 | Q91XW8 | 3 |
| Peptidyl-prolyl cis-trans isomerase G (PPIase G) (Peptidyl-prolyl isomerase G) (EC 5.2.1.8) (Cyclophilin G) (Rotamase G) | Ppig | A2AR02 | 3 |
| Peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 (EC 5.2.1.8) (Parvulin-14) (Par14) (Peptidyl-prolyl cis-trans isomerase Pin4) (PPIase Pin4) (Rotamase Pin4) | Pin4 | Q9CWW6 | 3 |
| Pericentriolar material 1 protein (PCM-1) (mPCM-1) | Pcm1 | Q9R0L6 | 3 |
| Peripheral plasma membrane protein CASK (EC 2.7.11.1) (Calcium/calmodulin-dependent serine protein kinase) | Cask | O70589 | 3 |
| Peroxiredoxin-6 (EC 1.11.1.15) (1-Cys peroxiredoxin) (1-Cys PRX) (Acidic calcium-independent phospholipase A2) (aiPLA2) (EC 3.1.1.-) (Antioxidant protein 2) (Non-selenium glutathione peroxidase) (NSGPx) (EC 1.11.1.9) | Prdx6 Aop2 Ltw4 Prdx5 | O08709 | 3 |
| PH and SEC7 domain-containing protein 3 (Exchange factor for ADP-ribosylation factor guanine nucleotide factor 6) (Pleckstrin homology and SEC7 domain-containing protein 3) | Psd3 Efa6d Kiaa0942 | Q2PFD7 | 3 |
| PHD finger protein 11 (PHD finger protein 11-like) (PHD finger protein 11D) | Phf11 D14Ertd668e Phf11d Phf11l | A6H5X4 | 3 |
| Phosducin (PHD) (33 kDa phototransducing protein) (Rod photoreceptor 1) (RPR-1) | Pdc Rpr1 | Q9QW08 | 3 |
| Phosphatidylinositide phosphatase SAC2 (EC 3.1.3.-) (Inositol polyphosphate 5-phosphatase F) (Sac domain-containing inositol phosphatase 2) (Sac domain-containing phosphoinositide 5-phosphatase 2) | Inpp5f Kiaa0966 Sac2 | Q8CDA1 | 3 |
| Phosphatidylinositol 3,4,5-trisphosphate 5-phosphatase 1 (EC 3.1.3.86) (Inositol polyphosphate-5-phosphatase of 145 kDa) (SIP-145) (SH2 domain-containing inositol 5'-phosphatase 1) (SH2 domain-containing inositol phosphatase 1) (SHIP-1) (p150Ship) | Inpp5d 7a33 Ship Ship1 | Q9ES52 | 3 |
| Phosphatidylinositol 3,4,5-trisphosphate-dependent Rac exchanger 2 protein (P-Rex2) (PtdIns(3,4,5)-dependent Rac exchanger 2) (DEP domain-containing protein 2) | Prex2 Depdc2 | Q3LAC4 | 3 |
| Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform (PI3-kinase subunit delta) (PI3K-delta) (PI3Kdelta) (PtdIns-3-kinase subunit delta) (EC 2.7.1.153) (Phosphatidylinositol 4,5-bisphosphate 3-kinase 110 kDa catalytic subunit delta) (PtdIns-3-kinase subunit p110-delta) (p110delta) | Pik3cd | O35904 | 3 |
| Phosphatidylinositol 4-kinase beta (PI4K-beta) (PI4Kbeta) (PtdIns 4-kinase beta) (EC 2.7.1.67) | Pi4kb Pik4cb | Q8BKC8 | 3 |
| Phosphatidylinositol 4-phosphate 5-kinase type-1 alpha (PIP5K1-alpha) (PtdIns(4)P-5-kinase 1 alpha) (EC 2.7.1.68) (68 kDa type I phosphatidylinositol 4-phosphate 5-kinase) (Phosphatidylinositol 4-phosphate 5-kinase type I alpha) (PIP5KIalpha) (Phosphatidylinositol 4-phosphate 5-kinase type I beta) (PI4P5KIbeta) | Pip5k1a Pip5k1b | P70182 | 3 |
| Phosphatidylserine decarboxylase proenzyme (EC 4.1.1.65) [Cleaved into: Phosphatidylserine decarboxylase alpha chain; Phosphatidylserine decarboxylase beta chain] | Pisd | Q8BSF4 | 3 |
| Phosphoinositide-interacting protein | Pirt | Q8BFY0 | 3 |
| Phospholipase A-2-activating protein (PLA2P) (PLAP) | Plaa Plap | P27612 | 3 |
| Phospholipase A1 member A (EC 3.1.1.-) (Phosphatidylserine-specific phospholipase A1) (PS-PLA1) | Pla1a Pspla1 | Q8VI78 | 3 |
| Phospholipase D4 (PLD 4) (EC 3.1.4.4) (Choline phosphatase 4) (Phosphatidylcholine-hydrolyzing phospholipase D4) | Pld4 | Q8BG07 | 3 |
| Phospholipase DDHD2 (EC 3.1.1.-) (DDHD domain-containing protein 2) (SAM, WWE and DDHD domain-containing protein 1) | Ddhd2 Kiaa0725 Samwd1 | Q80Y98 | 3 |
| Phosphomannomutase 1 (PMM 1) (EC 5.4.2.8) | Pmm1 | O35621 | 3 |
| Phosphoribosyl pyrophosphate synthase-associated protein 1 (PRPP synthase-associated protein 1) (39 kDa phosphoribosypyrophosphate synthase-associated protein) (PAP39) | Prpsap1 | Q9D0M1 | 3 |
| Phosphorylase b kinase regulatory subunit alpha, skeletal muscle isoform (Phosphorylase kinase alpha M subunit) | Phka1 | P18826 | 3 |
| PI-PLC X domain-containing protein 1 (Phosphatidylinositol-specific phospholipase C, X domain containing 1, isoform CRA_b) | Plcxd1 mCG_23690 | G3X9J3 | 3 |
| PIN2/TERF1-interacting telomerase inhibitor 1 (67-11-3 protein) (LPTS1) (Liver-related putative tumor suppressor) (Pin2-interacting protein X1) (TRF1-interacting protein 1) | Pinx1 Lpts | Q9CZX5 | 3 |
| Pituitary homeobox 2 (ALL1-responsive protein ARP1) (BRX1 homeoprotein) (Homeobox protein PITX2) (Orthodenticle-like homeobox 2) (Paired-like homeodomain transcription factor 2) (Paired-like homeodomain transcription factor Munc 30) (Solurshin) | Pitx2 Arp1 Brx1 Otlx2 Ptx2 Rgs | P97474 | 3 |
| Plasma alpha-L-fucosidase (EC 3.2.1.51) (Alpha-L-fucoside fucohydrolase 2) (Alpha-L-fucosidase 2) | Fuca2 | Q99KR8 | 3 |
| Platelet-activating factor acetylhydrolase IB subunit alpha (Lissencephaly-1 protein) (LIS-1) (PAF acetylhydrolase 45 kDa subunit) (PAF-AH 45 kDa subunit) (PAF-AH alpha) (PAFAH alpha) | Pafah1b1 Lis-1 Lis1 Pafaha | P63005 | 3 |
| Pleiomorphic adenoma gene-like 1, isoform CRA_d (Protein Plagl1) (Zinc finger protein ZAC1) | Plagl1 Zac1 mCG_12864 | Q9JLQ4 | 3 |
| Pleiotropic regulator 1 | Plrg1 | Q922V4 | 3 |
| Plexin-B2 | Plxnb2 | B2RXS4 | 3 |
| Plexin-D1 | Plxnd1 | Q3UH93 | 3 |
| Poliovirus receptor-related protein 2 (Herpes virus entry mediator B) (Herpesvirus entry mediator B) (HveB) (Murine herpes virus entry protein B) (mHveB) (Nectin-2) (Poliovirus receptor homolog) (CD antigen CD112) | Pvrl2 Mph Pvr Pvs | P32507 | 3 |
| Poly(rC)-binding protein 3 (Alpha-CP3) | Pcbp3 | P57722 | 3 |
| Polypeptide N-acetylgalactosaminyltransferase 12 (EC 2.4.1.41) (Polypeptide GalNAc transferase 12) (GalNAc-T12) (pp-GaNTase 12) (Protein-UDP acetylgalactosaminyltransferase 12) (UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase 12) | Galnt12 | Q8BGT9 | 3 |
| Polypeptide N-acetylgalactosaminyltransferase 18 (EC 2.4.1.41) (Polypeptide GalNAc transferase-like protein 4) (GalNAc-T-like protein 4) (pp-GaNTase-like protein 4) (Polypeptide N-acetylgalactosaminyltransferase-like protein 4) (Protein-UDP acetylgalactosaminyltransferase-like protein 4) (UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase-like protein 4) | Galnt18 Galntl4 | Q8K1B9 | 3 |
| Post-GPI attachment to proteins factor 2 (FGF receptor-activating protein 1) | Pgap2 Frag1 | Q3TQR0 | 3 |
| Postmeiotic segregation increased 1 (S. cerevisiae) (Protein Pms1) | Pms1 | Q8K119 | 3 |
| Potassium voltage-gated channel subfamily E member 3 (MinK-related peptide 2) (Minimum potassium ion channel-related peptide 2) (Potassium channel subunit beta MiRP2) | Kcne3 | Q9WTW2 | 3 |
| Potassium voltage-gated channel subfamily H member 3 (Potassium voltage-gated channel, subfamily H (Eag-related), member 3) (Potassium voltage-gated channel, subfamily H (Eag-related), member 3, isoform CRA_a) | Kcnh3 mCG_18387 | B2RU85 | 3 |
| Potassium voltage-gated channel subfamily S member 3 (Voltage-gated potassium channel subunit Kv9.3) | Kcns3 | Q8BQZ8 | 3 |
| Potassium voltage-gated channel, shaker-related subfamily, member 10 (Protein Kcna10) | Kcna10 | B2RQA1 | 3 |
| Potassium-transporting ATPase alpha chain 2 (EC 3.6.3.10) (Non-gastric H(+)/K(+) ATPase subunit alpha) (Proton pump) | Atp12a Atp1al1 | Q9Z1W8 | 3 |
| POU domain, class 4, transcription factor 1 (Brain-specific homeobox/POU domain protein 3A) (Brain-3A) (Brn-3A) (Brn-3.0) | Pou4f1 Brn-3 Brn3 Brn3a | P17208 | 3 |
| PR domain zinc finger protein 16 (PR domain-containing protein 16) (Transcription factor MEL1) (MDS1/EVI1-like gene 1) | Prdm16 Kiaa1675 Mel1 | A2A935 | 3 |
| Predicted gene, EG382275 (Protein Gm5168) | Gm5168 EG382275 | Q4KL04 | 3 |
| Predicted gene, EG434179 (Protein Gm5595) | Gm5595 EG434179 | Q6NVD6 | 3 |
| Predicted gene, EG545253 | Gm5820 EG545253 | Q3ULQ8 | 3 |
| Predicted gene, OTTMUSG00000002038 (Protein Gm11541) (Putative uncharacterized protein RP23-290B5.6) | Gm11541 OTTMUSG00000002038 RP23-290B5.6 mCG_147536 | Q8C4D8 | 3 |
| Predicted gene, OTTMUSG00000010657 (Protein Gm13139) | Gm13139 OTTMUSG00000010657 | Q8R1N3 | 3 |
| Predicted gene, OTTMUSG00000010671 | Gm13152 OTTMUSG00000010671 | Q6PDN1 | 3 |
| Pregnancy specific glycoprotein 18 (Protein Psg18) | Psg18 | B2RSG7 | 3 |
| Pregnancy-specific glycoprotein 25 (Protein Psg25) | Psg25 | Q497W1 | 3 |
| Pregnancy-specific glycoprotein 26 (Protein Psg26) | Psg26 EG574429 | Q4KL65 | 3 |
| Pregnancy-specific glycoprotein 27 (Protein Psg27) | Psg27 EG545925 | Q497W2 | 3 |
| Pregnancy-specific glycoprotein 28 (Protein Psg28) | Psg28 | Q4KL66 | 3 |
| Probable 2-oxoglutarate dehydrogenase E1 component DHKTD1, mitochondrial (EC 1.2.4.2) (Dehydrogenase E1 and transketolase domain-containing protein 1) | Dhtkd1 Kiaa1630 | A2ATU0 | 3 |
| Probable ATP-dependent RNA helicase DHX34 (EC 3.6.4.13) (DEAH box protein 34) | Dhx34 Ddx34 Kiaa0134 | Q9DBV3 | 3 |
| Probable carboxypeptidase X1 (EC 3.4.17.-) (Metallocarboxypeptidase CPX-1) | Cpxm1 Cpx1 Cpxm | Q9Z100 | 3 |
| Probable crossover junction endonuclease EME2 (EC 3.1.22.-) | Eme2 | Q56A04 | 3 |
| Probable E3 ubiquitin-protein ligase makorin-2 (EC 6.3.2.-) | Mkrn2 | Q9ERV1 | 3 |
| Probable G-protein coupled receptor 113 (G-protein coupled receptor PGR23) | Gpr113 Gm1041 Pcr113 Pgr23 | Q58Y75 | 3 |
| Probable G-protein coupled receptor 135 | Gpr135 | Q7TQP2 | 3 |
| Probable G-protein coupled receptor 27 (Super conserved receptor expressed in brain 1) | Gpr27 Sreb1 | O54897 | 3 |
| Probable glutathione peroxidase 8 (GPx-8) (GSHPx-8) (EC 1.11.1.9) | Gpx8 | Q9D7B7 | 3 |
| Probable inactive ribonuclease-like protein 13 | Rnase13 | Q5GAM7 | 3 |
| Probable methyltransferase-like protein 15 (EC 2.1.1.-) (Methyltransferase 5 domain-containing protein 1) | Mettl15 Mett5d1 | Q9DCL4 | 3 |
| Probable N-acetyltransferase CML3 (EC 2.3.1.-) (Camello-like protein 3) | Cml3 | Q9JIY8 | 3 |
| Probable palmitoyltransferase ZDHHC14 (EC 2.3.1.225) (NEW1 domain-containing protein) (NEW1CP) (Zinc finger DHHC domain-containing protein 14) (DHHC-14) | Zdhhc14 | Q8BQQ1 | 3 |
| Probable ubiquitin carboxyl-terminal hydrolase FAF-X (EC 3.4.19.12) (Deubiquitinating enzyme FAF-X) (Fat facets homolog) (Fat facets protein-related, X-linked) (Ubiquitin carboxyl-terminal hydrolase FAM) (Ubiquitin thioesterase FAF-X) (Ubiquitin-specific protease 9, X chromosome) (Ubiquitin-specific-processing protease FAF-X) | Usp9x Fafl Fam | P70398 | 3 |
| Probable UDP-sugar transporter protein SLC35A4 (Solute carrier family 35 member A4) | Slc35a4 | Q9D321 | 3 |
| Progestin and adipoQ receptor family member 6 (Progestin and adipoQ receptor family member VI) | Paqr6 | Q6TCG5 | 3 |
| Programmed cell death 1 ligand 1 (PD-L1) (PDCD1 ligand 1) (Programmed death ligand 1) (B7 homolog 1) (B7-H1) (CD antigen CD274) | Cd274 B7h1 Pdcd1l1 Pdcd1lg1 Pdl1 | Q9EP73 | 3 |
| Prolactin-releasing peptide receptor (PrRP receptor) (PrRPR) (G-protein coupled receptor 10) | Prlhr Gm339 Gpr10 | Q6VMN6 | 3 |
| Proline rich protein | MP4 | Q61888 | 3 |
| Proline/serine-rich coiled-coil protein 1 | Psrc1 Dda3 | Q9D0P7 | 3 |
| Prolyl 4-hydroxylase subunit alpha-1 (4-PH alpha-1) (EC 1.14.11.2) (Procollagen-proline,2-oxoglutarate-4-dioxygenase subunit alpha-1) | P4ha1 | Q60715 | 3 |
| Prolyl endopeptidase (PE) (EC 3.4.21.26) (Post-proline cleaving enzyme) | Prep Pep | Q9QUR6 | 3 |
| Prolyl-tRNA synthetase associated domain-containing protein 1 (PrdX deacylase domain-containing protein 1) | Prorsd1 Prdxdd1 | Q9D820 | 3 |
| Propionyl-CoA carboxylase beta chain, mitochondrial (PCCase subunit beta) (EC 6.4.1.3) (Propanoyl-CoA:carbon dioxide ligase subunit beta) | Pccb | Q99MN9 | 3 |
| Prostacyclin synthase (EC 5.3.99.4) (Prostaglandin I2 synthase) | Ptgis Cyp8 | O35074 | 3 |
| Proteasome inhibitor PI31 subunit | Psmf1 | Q8BHL8 | 3 |
| Proteasome subunit beta type-2 (EC 3.4.25.1) (Macropain subunit C7-I) (Multicatalytic endopeptidase complex subunit C7-I) (Proteasome component C7-I) | Psmb2 | Q9R1P3 | 3 |
| Proteasome subunit beta type-3 (EC 3.4.25.1) (Proteasome chain 13) (Proteasome component C10-II) (Proteasome theta chain) | Psmb3 | Q9R1P1 | 3 |
| Proteasome subunit beta type-7 (EC 3.4.25.1) (Macropain chain Z) (Multicatalytic endopeptidase complex chain Z) (Proteasome subunit Z) | Psmb7 Mmc14 | P70195 | 3 |
| Protein 1700029P11Rik (Uncharacterized protein) | 1700029P11Rik | Q9CQ68 | 3 |
| Protein 2610015P09Rik | 2610015P09Rik | J3QQ27 | 3 |
| Protein 2610305D13Rik | 2610305D13Rik | A2A799 | 3 |
| Protein 2610524H06Rik (RIKEN cDNA 2610524H06) (Uncharacterized protein) | 2610524H06Rik H2-Eb1 mCG_68103 | Q9CZU9 | 3 |
| Protein 2700097O09Rik (RIKEN cDNA 2700097O09) (Uncharacterized protein) | 2700097O09Rik mCG_21241 | Q6PGK3 | 3 |
| Protein 4930430D24Rik (Uncharacterized protein) | 4930430D24Rik | Q3V0X0 | 3 |
| Protein 4930474N05Rik (Uncharacterized protein) | 4930474N05Rik | Q8BVR5 | 3 |
| Protein 4933422H20Rik (Uncharacterized protein) | 4933422H20Rik | Q3V061 | 3 |
| Protein AAR2 homolog (AAR2 splicing factor homolog) | Aar2 | Q9D2V5 | 3 |
| Protein AATF (Apoptosis-antagonizing transcription factor) (Rb-binding protein Che-1) (Traube protein) | Aatf Che1 Trb | Q9JKX4 | 3 |
| Protein Abca17 | Abca17 | E9PX95 | 3 |
| Protein AF067063 (Protein Gm21731) (Putative uncharacterized protein uniform group of 2-cell-stage gene family) (cDNA sequence AF067063) | AF067063 Gm21731 | O70618 | 3 |
| Protein ALEX (Alternative gene product encoded by XL-exon) | Gnas Gnas1 | Q6R0H6 | 3 |
| Protein Amn1 | Amn1 | B8JKV0 | 3 |