| Mitogen-activated protein kinase kinase kinase kinase 2 (EC 2.7.11.1) (Germinal center kinase) (GCK) (MAPK/ERK kinase kinase kinase 2) (MEK kinase kinase 2) (MEKKK 2) (Rab8-interacting protein) | Map4k2 Rab8ip | Q61161 | 2 |
| Mitotic-spindle organizing protein 1 (Mitotic-spindle organizing protein associated with a ring of gamma-tubulin 1) | Mzt1 Mozart1 | Q8BUR9 | 2 |
| MKIAA1469 protein (Fragment) | Flrt3 mKIAA1469 | Q6ZPQ1 | 2 |
| MMS19 nucleotide excision repair protein homolog (MET18 homolog) (MMS19-like protein) | Mms19 Mms19l | Q9D071 | 2 |
| Moesin (Membrane-organizing extension spike protein) | Msn | P26041 | 2 |
| Mothers against decapentaplegic homolog 7 (MAD homolog 7) (Mothers against DPP homolog 7) (Mothers against decapentaplegic homolog 8) (MAD homolog 8) (Mothers against DPP homolog 8) (SMAD family member 7) (SMAD 7) (Smad7) | Smad7 Madh7 Madh8 | O35253 | 2 |
| Motile sperm domain-containing protein 2 | Mospd2 | B1AU74 | 2 |
| Mpv17-like protein (M-LP) | Mpv17l | Q99MS3 | 2 |
| mRNA-decapping enzyme 1A (EC 3.-.-.-) (MAD homolog 4-interacting transcription coactivator 1) (Smad4-interacting transcriptional co-activator) (Transcription factor SMIF) | Dcp1a Mitc1 Smif | Q91YD3 | 2 |
| Mth938 domain-containing protein (LI2) | Aamdc | Q8R0P4 | 2 |
| Mucin-4 | Muc4 | E9Q7Q0 | 2 |
| Multidrug resistance-associated protein 5 (ATP-binding cassette sub-family C member 5) (Multi-specific organic anion transporter C) (MOAT-C) (SMRP) | Abcc5 Abcc5a Mrp5 | Q9R1X5 | 2 |
| Multimerin-2 | Mmrn2 | A6H6E2 | 2 |
| Muscarinic acetylcholine receptor M3 (Mm3 mAChR) | Chrm3 Chrm-3 | Q9ERZ3 | 2 |
| Muskelin | Mkln1 | O89050 | 2 |
| MutS protein homolog 5 | Msh5 | Q9QUM7 | 2 |
| Myb/SANT-like DNA-binding domain-containing protein 3 | Msantd3 | Q9CR78 | 2 |
| Myc-associated zinc finger protein | Maz | F8VPK3 | 2 |
| Myeloblastin (EC 3.4.21.76) (Proteinase 3) (PR-3) | Prtn3 | Q61096 | 2 |
| Myeloid leukemia factor 2 (Myelodysplasia-myeloid leukemia factor 2) | Mlf2 | Q99KX1 | 2 |
| Myeloid zinc finger 1 (Protein Mzf1) | Mzf1 | A1L358 | 2 |
| Myoblast determination protein 1 | Myod1 Myod | P10085 | 2 |
| MyoD family inhibitor (Myogenic repressor I-mf) | Mdfi | P70331 | 2 |
| Myoferlin (Fer-1-like protein 3) | Myof Fer1l3 Kiaa1207 | Q69ZN7 | 2 |
| Myoglobin | Mb | P04247 | 2 |
| Myomegalin (Phosphodiesterase 4D-interacting protein) | Pde4dip Kiaa0454 | Q80YT7 | 2 |
| Myomesin-1 (Myomesin family member 1) (Skelemin) | Myom1 | Q62234 | 2 |
| Myosin light chain kinase, smooth muscle (Myosin, light polypeptide kinase) | Mylk | B1B1A8 | 2 |
| Myosin regulatory light chain 10 (Myosin light chain 2, lymphocyte-specific) (Precursor lymphocyte-specific regulatory light chain) | Myl10 Mylc2pl Plrlc | Q62082 | 2 |
| Myosin-10 (Cellular myosin heavy chain, type B) (Myosin heavy chain 10) (Myosin heavy chain, non-muscle IIb) (Non-muscle myosin heavy chain B) (NMMHC-B) (Non-muscle myosin heavy chain IIb) (NMMHC II-b) (NMMHC-IIB) | Myh10 | Q61879 | 2 |
| Myotubularin-related protein 4 (EC 3.1.3.48) | Mtmr4 | Q91XS1 | 2 |
| N-acetylglucosamine-6-sulfatase (EC 3.1.6.14) (Glucosamine-6-sulfatase) (G6S) | Gns | Q8BFR4 | 2 |
| N-acetylneuraminate lyase (NALase) (EC 4.1.3.3) (N-acetylneuraminate pyruvate-lyase) (N-acetylneuraminic acid aldolase) (Sialate lyase) (Sialate-pyruvate lyase) (Sialic acid aldolase) (Sialic acid lyase) | Npl | Q9DCJ9 | 2 |
| N-alpha-acetyltransferase 10 (EC 2.3.1.-) (EC 2.3.1.88) (N-terminal acetyltransferase complex ARD1 subunit homolog A) (NatA catalytic subunit) | Naa10 Ard1 Ard1a Te2 | Q9QY36 | 2 |
| N-glycosylase/DNA lyase [Includes: 8-oxoguanine DNA glycosylase (EC 3.2.2.-); DNA-(apurinic or apyrimidinic site) lyase (AP lyase) (EC 4.2.99.18)] | Ogg1 | O08760 | 2 |
| N-myc proto-oncogene protein | Mycn Nmyc Nmyc1 | P03966 | 2 |
| NACHT, LRR and PYD domains-containing protein 3 (Cold autoinflammatory syndrome 1 protein homolog) (Cryopyrin) (Mast cell maturation-associated-inducible protein 1) (PYRIN-containing APAF1-like protein 1) | Nlrp3 Cias1 Mmig1 Nalp3 Pypaf1 | Q8R4B8 | 2 |
| NAD kinase (EC 2.7.1.23) (Poly(P)/ATP NAD kinase) | Nadk | P58058 | 2 |
| NAD+ ADP-ribosyltransferase 3 PARP-3 (Protein Parp3) | Parp3 Adprtl3 | Q8CFB8 | 2 |
| NAD-dependent malic enzyme, mitochondrial (NAD-ME) (EC 1.1.1.38) (Malic enzyme 2) | Me2 | Q99KE1 | 2 |
| NAD-dependent protein deacetylase sirtuin-6 (EC 3.5.1.-) (Regulatory protein SIR2 homolog 6) (SIR2-like protein 6) | Sirt6 Sir2l6 | P59941 | 2 |
| NAD-dependent protein deacetylase sirtuin-7 (EC 3.5.1.-) (Regulatory protein SIR2 homolog 7) (SIR2-like protein 7) | Sirt7 Sir2l7 | Q8BKJ9 | 2 |
| NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13 (Cell death regulatory protein GRIM-19) (Complex I-B16.6) (CI-B16.6) (Gene associated with retinoic and interferon-induced mortality 19 protein) (GRIM-19) (Gene associated with retinoic and IFN-induced mortality 19 protein) (NADH-ubiquinone oxidoreductase B16.6 subunit) | Ndufa13 Grim19 | Q9ERS2 | 2 |
| NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8 (Complex I-19kD) (CI-19kD) (Complex I-PGIV) (CI-PGIV) (NADH-ubiquinone oxidoreductase 19 kDa subunit) | Ndufa8 | Q9DCJ5 | 2 |
| NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10 (Complex I-PDSW) (CI-PDSW) (NADH-ubiquinone oxidoreductase PDSW subunit) | Ndufb10 | Q9DCS9 | 2 |
| NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7 (Complex I-B18) (CI-B18) (NADH-ubiquinone oxidoreductase B18 subunit) | Ndufb7 | Q9CR61 | 2 |
| NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mitochondrial (Complex I-ASHI) (CI-ASHI) (NADH-ubiquinone oxidoreductase ASHI subunit) | Ndufb8 | Q9D6J5 | 2 |
| NADH dehydrogenase [ubiquinone] iron-sulfur protein 2, mitochondrial (EC 1.6.5.3) (EC 1.6.99.3) (Complex I-49kD) (CI-49kD) (NADH-ubiquinone oxidoreductase 49 kDa subunit) | Ndufs2 | Q91WD5 | 2 |
| NADPH oxidase 4 (EC 1.6.3.-) (Kidney oxidase-1) (KOX-1) (Kidney superoxide-producing NADPH oxidase) (Renal NAD(P)H-oxidase) (Superoxide-generating NADPH oxidase 4) | Nox4 Renox | Q9JHI8 | 2 |
| NADPH--cytochrome P450 reductase (CPR) (P450R) (EC 1.6.2.4) | Por | P37040 | 2 |
| Natural killer cell receptor LY49W1 (Natural killer cell receptor Ly-49W1) | Klra23 Ly-49W Ly49W | Q9EP57 | 2 |
| Nck-associated protein 5-like | Nckap5l | Q6GQX2 | 2 |
| NEDD4-like E3 ubiquitin-protein ligase WWP2 (EC 6.3.2.-) (WW domain-containing protein 2) | Wwp2 | Q9DBH0 | 2 |
| Neogenin | Neo1 | E9QK04 | 2 |
| Neugrin (FI58Gm) (Neurite outgrowth-associated protein) (m-Neugrin) | Ngrn Fi58g | Q99KS2 | 2 |
| Neural Wiskott-Aldrich syndrome protein (N-WASP) | Wasl | Q91YD9 | 2 |
| Neuregulin 1 (Neuregulin-1 type III beta1-a) (Protein Nrg1) | Nrg1 | Q6DR99 | 2 |
| Neurexin-3 (Neurexin III-alpha) (Neurexin-3-alpha) | Nrxn3 | Q6P9K9 | 2 |
| Neuroblastoma suppressor of tumorigenicity 1 (N03) (Zinc finger protein DAN) | Nbl1 Dan Dana | Q61477 | 2 |
| Neuroendocrine convertase 2 (NEC 2) (EC 3.4.21.94) (KEX2-like endoprotease 2) (Prohormone convertase 2) (Proprotein convertase 2) (PC2) | Pcsk2 Nec-2 Nec2 | P21661 | 2 |
| Neuroguidin (EIF4E-binding protein) | Ngdn Ngd | Q9DB96 | 2 |
| Neuroligin-1 | Nlgn1 Kiaa1070 | Q99K10 | 2 |
| Neuromedin-U [Cleaved into: Neuromedin-U-23 (NmU-23)] | Nmu | Q9QXK8 | 2 |
| Neuronal acetylcholine receptor subunit alpha-2 | Chrna2 | Q91X60 | 2 |
| Neuronal pentraxin-2 (NP2) (Neuronal pentraxin II) (NP-II) | Nptx2 | O70340 | 2 |
| Neuropeptide S receptor (G-protein coupled receptor 154) (G-protein coupled receptor PGR14) | Npsr1 Gpr154 Pgr14 | Q8BZP8 | 2 |
| Neuropeptide Y receptor type 2 (NPY2-R) (NPY-Y2 receptor) (Y2 receptor) | Npy2r | P97295 | 2 |
| Neutrophil cytosol factor 4 (NCF-4) (Neutrophil NADPH oxidase factor 4) (p40-phox) (p40phox) | Ncf4 | P97369 | 2 |
| NF-kappa-B inhibitor-interacting Ras-like protein 2 (I-kappa-B-interacting Ras-like protein 2) (Kappa B-Ras protein 2) (KappaB-Ras2) | Nkiras2 | Q9CR56 | 2 |
| NF-kappa-B-activating protein | Nkap | Q9D0F4 | 2 |
| NFU1 iron-sulfur cluster scaffold homolog, mitochondrial (HIRA-interacting protein 5) (mHIRIP5) | Nfu1 Hirip5 | Q9QZ23 | 2 |
| Nibrin (Cell cycle regulatory protein p95) (Nijmegen breakage syndrome protein 1 homolog) | Nbn Nbs1 | Q9R207 | 2 |
| Nicotinamide mononucleotide adenylyltransferase 1 (NMN adenylyltransferase 1) (EC 2.7.7.1) (Nicotinate-nucleotide adenylyltransferase 1) (NaMN adenylyltransferase 1) (EC 2.7.7.18) | Nmnat1 D4Cole1e Nmnat | Q9EPA7 | 2 |
| Nipped-B-like protein (Delangin homolog) (SCC2 homolog) | Nipbl | Q6KCD5 | 2 |
| NMDA receptor-regulated protein 2 | Narg2 | Q3UZ18 | 2 |
| Nodal | Nodal | P43021 | 2 |
| Nodal modulator 1 | Nomo1 | Q6GQT9 | 2 |
| Noelin-2 (Olfactomedin-2) | Olfm2 | Q8BM13 | 2 |
| Nogo-B receptor (NgBR) (Nuclear undecaprenyl pyrophosphate synthase 1 homolog) | Nus1 D10Ertd438e Ngbr | Q99LJ8 | 2 |
| Non-histone chromosomal protein HMG-17 (High mobility group nucleosome-binding domain-containing protein 2) | Hmgn2 Hmg-17 Hmg17 | P09602 | 2 |
| Non-syndromic hearing impairment protein 5 homolog | Dfna5 Dfna5h | Q9Z2D3 | 2 |
| NTF2-related export protein 1 | Nxt1 | Q9QZV9 | 2 |
| Nuclear cap-binding protein subunit 1 (80 kDa nuclear cap-binding protein) (CBP80) (NCBP 80 kDa subunit) | Ncbp1 Cbp80 | Q3UYV9 | 2 |
| Nuclear factor erythroid 2-related factor 3 (NF-E2-related factor 3) (NFE2-related factor 3) (Nuclear factor, erythroid derived 2, like 3) | Nfe2l3 Nrf3 | Q9WTM4 | 2 |
| Nuclear factor interleukin-3-regulated protein (E4 promoter-binding protein 4) (Embryo implantation-related NFIL3/E4BP4-like transcription factor) | Nfil3 E4bp4 | O08750 | 2 |
| Nuclear factor of activated T-cells c3 isoform IB-deltaXa (Nuclear factor of activated T-cells, cytoplasmic, calcineurin-dependent 3) (Nuclear factor of activated T-cells, cytoplasmic, calcineurin-dependent 3, isoform CRA_b) (Nuclear factor of-activated T-cells, cytoplasmic 3) | Nfatc3 mCG_20471 | Q3UZ64 | 2 |
| Nuclear factor related to kappa-B-binding protein (DNA-binding protein R kappa-B) | Nfrkb | Q6PIJ4 | 2 |
| Nuclear pore complex protein Nup107 (107 kDa nucleoporin) (Nucleoporin Nup107) | Nup107 | Q8BH74 | 2 |
| Nuclear protein localization protein 4 homolog (Protein NPL4) | Nploc4 Kiaa1499 Npl4 | P60670 | 2 |
| Nuclear receptor coactivator 4 (Protein Ncoa4) | Ncoa4 | Q5U4H9 | 2 |
| Nuclear receptor coactivator 5 (NCoA-5) (Coactivator independent of AF-2) (CIA) | Ncoa5 | Q91W39 | 2 |
| Nuclear receptor coactivator 7 | Ncoa7 | Q6DFV7 | 2 |
| Nuclear receptor subfamily 1 group D member 2 (Orphan nuclear receptor RVR) (Rev-erb-beta) | Nr1d2 | Q60674 | 2 |
| Nuclear receptor subfamily 2 group C member 2 (Orphan nuclear receptor TAK1) (Orphan nuclear receptor TR4) (Testicular receptor 4) | Nr2c2 Mtr2r1 Tak1 Tr4 | P49117 | 2 |
| Nuclear respiratory factor 1 (NRF-1) (Alpha palindromic-binding protein) (Alpha-pal) | Nrf1 | Q9WU00 | 2 |
| Nucleolar GTP-binding protein 1 (Chronic renal failure gene protein) (GTP-binding protein NGB) | Gtpbp4 Crfg Nog1 | Q99ME9 | 2 |
| Nucleolar pre-ribosomal-associated protein 1 (URB1 ribosome biogenesis 1 homolog) | Urb1 Kiaa0539 Npa1 | Q571H0 | 2 |
| Nucleolar protein 14 (Nucleolar complex protein 14) | Nop14 Nol14 | Q8R3N1 | 2 |
| Nucleolar RNA helicase 2 (EC 3.6.4.13) (DEAD box protein 21) (Gu-alpha) (Nucleolar RNA helicase Gu) (Nucleolar RNA helicase II) (RH II/Gu) | Ddx21 | Q9JIK5 | 2 |
| Nucleolar transcription factor 1 (Upstream binding transcription factor, RNA polymerase I, isoform CRA_c) | Ubtf mCG_140722 | A2AWT5 | 2 |