| Non-specific serine/threonine protein kinase (EC 2.7.11.1) (Fragment) | MARK3 | H0YIY6 | 1 |
| Nonmuscle myosin II heavy chain-B (Fragment) | 0 | Q15753 | 1 |
| Notch homolog 2 N-terminal-like protein | NOTCH2NL N2N | Q7Z3S9 | 1 |
| Nox1 NAD(P)H-oxidase subunit | NOX1 | Q8TCT3 | 1 |
| NPC-A-16 (Ribosomal protein L9) (Ribosomal protein L9 isoform) (Ribosomal protein L9, isoform CRA_b) (cDNA, FLJ92535, Homo sapiens ribosomal protein L9 (RPL9), mRNA) | RPL9 hCG_37461 | Q53Z07 | 1 |
| NQO1 protein (Fragment) | NQO1 | Q3B792 | 1 |
| NS5ATP13TP1 | 0 | Q6JHZ5 | 1 |
| NSFL1 cofactor p47 | NSFL1C | F2Z2K0 | 1 |
| NSFL1 cofactor p47 (UBX domain-containing protein 2C) (p97 cofactor p47) | NSFL1C UBXN2C | Q5JXA5 | 1 |
| NTF2-related export protein 2 (Protein p15-2) | NXT2 BM-025 DC9 | Q9NPJ8 | 1 |
| Nuclear autoantigenic sperm protein | NASP | Q5T624 | 1 |
| Nuclear body protein SP140-like protein | SP140L | Q9H930 | 1 |
| Nuclear cap-binding protein subunit 3 (Protein ELG) | NCBP3 C17orf85 | Q53F19 | 1 |
| Nuclear distribution protein nudE-like 1 | NDEL1 | A6NIZ0 | 1 |
| Nuclear distribution protein nudE-like 1 (Fragment) | NDEL1 | J3QRZ1 | 1 |
| Nuclear envelope integral membrane protein 1 | NEMP1 KIAA0286 TMEM194 TMEM194A | O14524 | 1 |
| Nuclear envelope pore membrane protein POM 121 (Nuclear envelope pore membrane protein POM 121A) (Nucleoporin Nup121) (Pore membrane protein of 121 kDa) | POM121 KIAA0618 NUP121 POM121A | Q96HA1 | 1 |
| Nuclear factor 1 | NFIX | K7EN08 | 1 |
| Nuclear factor interleukin-3-regulated protein (E4 promoter-binding protein 4) (Interleukin-3 promoter transcriptional activator) (Interleukin-3-binding protein 1) (Transcriptional activator NF-IL3A) | NFIL3 E4BP4 IL3BP1 | Q16649 | 1 |
| Nuclear GTPase SLIP-GC (EC 3.6.1.-) (Speckled-like pattern in the germinal center) | NUGGC C8orf80 HMFN0672 | Q68CJ6 | 1 |
| Nuclear inhibitor of protein phosphatase 1 (Fragment) | PPP1R8 | A0A0A0MT09 | 1 |
| Nuclear mitotic apparatus protein 1 (Fragment) | NUMA1 | Q9UNL7 | 1 |
| Nuclear pore complex protein Nup160 (Fragment) | NUP160 | G3V198 | 1 |
| Nuclear pore complex protein Nup214 (cDNA, FLJ79316, highly similar to Nuclear pore complex protein Nup214) | NUP214 | B7ZAV2 | 1 |
| Nuclear pore complex protein Nup85 (85 kDa nucleoporin) (FROUNT) (Nucleoporin Nup75) (Nucleoporin Nup85) (Pericentrin-1) | NUP85 NUP75 PCNT1 | B4DMQ3 | 1 |
| Nuclear pore complex protein Nup88 (Fragment) | NUP88 | J3KMX1 | 1 |
| Nuclear pore complex protein Nup93 (Fragment) | NUP93 | H3BV15 | 1 |
| Nuclear pore complex-interacting protein family member A7 (Fragment) | NPIPA7 | H0Y2X3 | 1 |
| Nuclear pore complex-interacting protein family, member B12 (Fragment) | NPIPB12 | H0YIQ3 | 1 |
| Nuclear pore glycoprotein p62 (Fragment) | NUP62 | M0QYY0 | 1 |
| Nuclear prelamin A recognition factor (Iron-only hydrogenase-like protein 2) (IOP2) | NARF | Q9UHQ1 | 1 |
| Nuclear protein localization protein 4 homolog (Fragment) | NPLOC4 | I3L283 | 1 |
| Nuclear protein MDM1 | MDM1 | Q8TC05 | 1 |
| Nuclear receptor coactivator 3 (NCoA-3) (EC 2.3.1.48) (ACTR) (Amplified in breast cancer 1 protein) (AIB-1) (CBP-interacting protein) (pCIP) (Class E basic helix-loop-helix protein 42) (bHLHe42) (Receptor-associated coactivator 3) (RAC-3) (Steroid receptor coactivator protein 3) (SRC-3) (Thyroid hormone receptor activator molecule 1) (TRAM-1) | NCOA3 AIB1 BHLHE42 RAC3 TRAM1 | Q9Y6Q9 | 1 |
| Nuclear receptor coactivator 4 (Fragment) | 0 | Q6TAR0 | 1 |
| Nuclear receptor coactivator 6 (Activating signal cointegrator 2) (ASC-2) (Amplified in breast cancer protein 3) (Cancer-amplified transcriptional coactivator ASC-2) (Nuclear receptor coactivator RAP250) (NRC RAP250) (Nuclear receptor-activating protein, 250 kDa) (Peroxisome proliferator-activated receptor-interacting protein) (PPAR-interacting protein) (PRIP) (Thyroid hormone receptor-binding protein) | NCOA6 AIB3 KIAA0181 RAP250 TRBP | Q14686 | 1 |
| Nuclear receptor corepressor 1 (N-CoR) (N-CoR1) | NCOR1 KIAA1047 | O75376 | 1 |
| Nuclear receptor corepressor 2 | NCOR2 | C9JFD3 | 1 |
| Nuclear receptor corepressor 2 | NCOR2 | C9J7T7 | 1 |
| Nuclear receptor corepressor 2 (Fragment) | NCOR2 | H7C0P3 | 1 |
| Nuclear receptor ROR-alpha (Nuclear receptor RZR-alpha) (Nuclear receptor subfamily 1 group F member 1) (RAR-related orphan receptor A) (Retinoid-related orphan receptor-alpha) | RORA NR1F1 RZRA | P35398 | 1 |
| Nuclear receptor subfamily 0 group B member 1 (DSS-AHC critical region on the X chromosome protein 1) (Nuclear receptor DAX-1) | NR0B1 AHC DAX1 | P51843 | 1 |
| Nuclear receptor subfamily 1 group D member 1 (Rev-erbA-alpha) (V-erbA-related protein 1) (EAR-1) | NR1D1 EAR1 HREV THRAL | P20393 | 1 |
| Nuclear receptor subfamily 2 group C member 1 (Orphan nuclear receptor TR2) (Testicular receptor 2) | NR2C1 TR2 | P13056 | 1 |
| Nuclear receptor subfamily 2 group C member 2 (Orphan nuclear receptor TAK1) (Orphan nuclear receptor TR4) (Testicular receptor 4) | NR2C2 TAK1 TR4 | P49116 | 1 |
| Nuclear receptor subfamily 5 group A member 2 (Alpha-1-fetoprotein transcription factor) (B1-binding factor) (hB1F) (CYP7A promoter-binding factor) (Hepatocytic transcription factor) (Liver receptor homolog 1) (LRH-1) | NR5A2 B1F CPF FTF | O00482 | 1 |
| Nuclear receptor subfamily 6 group A member 1 (Germ cell nuclear factor) (GCNF) (hGCNF) (Retinoid receptor-related testis-specific receptor) (RTR) (hRTR) | NR6A1 GCNF | Q15406 | 1 |
| Nuclear receptor-binding protein | NRBP1 | F8W6G1 | 1 |
| Nuclear receptor-interacting protein 1 (Nuclear factor RIP140) (Receptor-interacting protein 140) | NRIP1 | P48552 | 1 |
| Nuclear receptor-interacting protein 2 | NRIP2 | Q9BQI9 | 1 |
| Nuclear receptor-interacting protein 3 (Sarcoma antigen NY-SAR-105) | NRIP3 C11orf14 | Q9NQ35 | 1 |
| Nuclear respiratory factor 1 (NRF-1) (Alpha palindromic-binding protein) (Alpha-pal) | NRF1 | Q96AN2 | 1 |
| Nuclear RNA export factor 2 (Cancer/testis antigen 39) (CT39) (TAP-like protein 2) (TAPL-2) | NXF2 TAPL2; NXF2B | Q9GZY0 | 1 |
| Nuclear RNA export factor 2 (Nuclear RNA export factor 2B) | NXF2B NXF2 GHc-618H1.1-002 RP11-353J17.1-002 | Q5JRM6 | 1 |
| Nuclear transcription factor Y subunit alpha (CAAT box DNA-binding protein subunit A) (Nuclear transcription factor Y subunit A) (NF-YA) | NFYA | P23511 | 1 |
| Nuclear-interacting partner of ALK | ZC3HC1 | C9J0I9 | 1 |
| Nuclear-interacting partner of ALK | ZC3HC1 | F8WBD7 | 1 |
| Nuclease EXOG, mitochondrial (EC 3.1.30.-) (Endonuclease G-like 1) (Endo G-like 1) | EXOG ENDOGL1 ENDOGL2 ENGL | Q9Y2C4 | 1 |
| Nucleic acid dioxygenase ALKBH1 (EC 1.14.11.-) (Alkylated DNA repair protein alkB homolog 1) (Alpha-ketoglutarate-dependent dioxygenase ABH1) (DNA 6mA demethylase) (DNA N6-methyl adenine demethylase) (EC 1.14.11.-) (DNA lyase ABH1) (EC 4.2.99.18) (DNA oxidative demethylase ALKBH1) (EC 1.14.11.33) (tRNA N1-methyl adenine demethylase) (EC 1.14.11.-) | ALKBH1 ABH ABH1 ALKBH | Q13686 | 1 |
| Nucleobindin-1 (Fragment) | NUCB1 | C9JKZ2 | 1 |
| Nucleobindin-1 (Fragment) | NUCB1 | H7BZI1 | 1 |
| Nucleobindin-2 (Fragment) | NUCB2 | H0YEG8 | 1 |
| Nucleobindin-2 (Fragment) | NUCB2 | H0YD18 | 1 |
| Nucleolar protein 10 | NOL10 | B4DLV0 | 1 |
| Nucleolar protein 4 (Nucleolar-localized protein) | NOL4 NOLP HRIHFB2255 | O94818 | 1 |
| Nucleolar protein 56 (Nucleolar protein 5A) | NOP56 NOL5A | Q9NQ05 | 1 |
| Nucleolar protein 58 (Fragment) | NOP58 | H7BZ72 | 1 |
| Nucleolar protein 58 (Nucleolar protein 5) | NOP58 NOL5 NOP5 HSPC120 | Q9UFN3 | 1 |
| Nucleoporin p58/p45 | NUP58 | F8WBZ1 | 1 |
| Nucleoporin p58/p45 | NUP58 | F8WCJ8 | 1 |
| Nucleoporin SEH1 (Fragment) | SEH1L | K7ELV2 | 1 |
| Nucleoporin-like protein 2 | NUPL2 | F8WC66 | 1 |
| Nucleoporin-like protein 2 (cDNA FLJ57429, highly similar to Nucleoporin-like 2) | NUPL2 | B4DT96 | 1 |
| Nucleoprotein TPR (Megator) (NPC-associated intranuclear protein) (Translocated promoter region protein) | TPR | Q99968 | 1 |
| Nucleoredoxin (Fragment) | NXN | I3L4V6 | 1 |
| Nucleoside diphosphate kinase (EC 2.7.4.6) | NME3 | H3BPR2 | 1 |
| Nucleoside diphosphate kinase (EC 2.7.4.6) (Fragment) | c371H6.2 | Q9NUF9 | 1 |
| Nucleoside diphosphate kinase 6 (NDK 6) (NDP kinase 6) (EC 2.7.4.6) (Inhibitor of p53-induced apoptosis-alpha) (IPIA-alpha) (nm23-H6) | NME6 | O75414 | 1 |
| Nucleoside diphosphate-linked moiety X motif 13 (Nudix motif 13) (EC 3.-.-.-) (Protein KiSS-16) | NUDT13 | Q86X67 | 1 |
| Nucleoside diphosphate-linked moiety X motif 8 (Nudix motif 8) (EC 3.6.1.-) | NUDT8 | Q8WV74 | 1 |
| Nucleosome assembly protein 1-like 1 | NAP1L1 | F8W0J6 | 1 |
| Nucleosome assembly protein 1-like 1 | NAP1L1 | F8VV59 | 1 |
| Nucleosome assembly protein 1-like 1 | NAP1L1 | F8W543 | 1 |
| Nucleosome assembly protein 1-like 1 (Fragment) | NAP1L1 | H0YIV4 | 1 |
| Nucleosome assembly protein 1-like 1 (Fragment) | NAP1L1 | F8VXI6 | 1 |
| Nucleosome assembly protein 1-like 2 (Brain-specific protein, X-linked) | NAP1L2 BPX | Q9ULW6 | 1 |
| Nucleosome assembly protein 1-like 4 (Fragment) | NAP1L4 | H0YCI4 | 1 |
| Nucleosome assembly protein 1-like 4 (Fragment) | NAP1L4 | C9J6D1 | 1 |
| Nucleosome assembly protein 1-like 4 (Fragment) | NAP1L4 | E9PNW0 | 1 |
| Nucleosome assembly protein 1-like 5 (Down-regulated in liver malignancy) | NAP1L5 DRLM | Q96NT1 | 1 |
| Nucleosome-remodeling factor subunit BPTF | BPTF | A0A0A0MR81 | 1 |
| Nucleotide exchange factor SIL1 | SIL1 | D6REA1 | 1 |
| Nucleotide exchange factor SIL1 (Fragment) | SIL1 | D6RIU8 | 1 |
| Nucleotide-binding oligomerization domain-containing protein 2 (Caspase recruitment domain-containing protein 15) (Inflammatory bowel disease protein 1) | NOD2 CARD15 IBD1 | Q9HC29 | 1 |
| NudC domain-containing protein 1 (Chronic myelogenous leukemia tumor antigen 66) (Tumor antigen CML66) | NUDCD1 CML66 | Q9BVR5 | 1 |
| NudC domain-containing protein 2 | NUDCD2 | E5RFP0 | 1 |
| NUMA1 variant protein (Fragment) | NUMA1 variant protein | Q4LE64 | 1 |
| NUT family member 2D | NUTM2D FAM22D | Q5VT03 | 1 |
| NXPE family member 1 (Protein FAM55A) | NXPE1 FAM55A | Q8N323 | 1 |
| NXPE family member 4 (Protein FAM55D) | NXPE4 C11orf33 FAM55D UNQ3018/PRO9799 | Q6UWF7 | 1 |