| Complement receptor 1 (Fragment) | 0 | Q9UQR7 | 1 |
| Complement receptor type 1 | CR1 | E9PDY4 | 1 |
| Complex I assembly factor TIMMDC1, mitochondrial (Fragment) | TIMMDC1 | H7C5U1 | 1 |
| Complex I assembly factor TMEM126B, mitochondrial (Fragment) | TMEM126B | H0YEG5 | 1 |
| Complex I intermediate-associated protein 30, mitochondrial | NDUFAF1 | H0YL22 | 1 |
| Complexin-1 (Complexin I) (CPX I) (Synaphin-2) | CPLX1 | O14810 | 1 |
| Complexin-1 (Fragment) | CPLX1 | D6RAG3 | 1 |
| Component of oligomeric golgi complex 2, isoform CRA_a (cDNA, FLJ93071, Homo sapiens component of oligomeric golgi complex 2 (COG2), mRNA) | COG2 hCG_15926 | B1ALW7 | 1 |
| Condensin complex subunit 1 | 0 | B4E0B7 | 1 |
| Condensin complex subunit 1 (Fragment) | NCAPD2 | E7EN77 | 1 |
| Condensin complex subunit 2 (Fragment) | NCAPH | C9J470 | 1 |
| Condensin complex subunit 2 (Fragment) | NCAPH | H7C415 | 1 |
| Condensin-2 complex subunit D3 (Fragment) | NCAPD3 | E9PQA3 | 1 |
| Condensin-2 complex subunit H2 (Chromosome-associated protein H2) (hCAP-H2) (Kleisin-beta) (Non-SMC condensin II complex subunit H2) | NCAPH2 CAPH2 | Q6IBW4 | 1 |
| Connector enhancer of kinase suppressor of ras 1 (Fragment) | CNKSR1 | H0YDP5 | 1 |
| Conserved oligomeric Golgi complex subunit 1 | COG1 | A0A087WVI0 | 1 |
| Conserved oligomeric Golgi complex subunit 1 (Fragment) | COG1 | J3QKY9 | 1 |
| Conserved oligomeric Golgi complex subunit 2 (cDNA FLJ55945, highly similar to Conserved oligomeric Golgi complex component 2) | COG2 | B7Z2Y2 | 1 |
| Conserved oligomeric Golgi complex subunit 4 (Fragment) | COG4 | J3QLW1 | 1 |
| Conserved oligomeric Golgi complex subunit 5 (Fragment) | COG5 | U3KQU7 | 1 |
| Constitutive coactivator of PPAR-gamma-like protein 1 (Fragment) | FAM120A | A0A0C4DH52 | 1 |
| Contactin-4 (Fragment) | CNTN4 | H0Y8U1 | 1 |
| Contactin-associated protein-like 2 (Fragment) | CNTNAP2 | A0A0J9YWG3 | 1 |
| Contactin-associated protein-like 3 (Cell recognition molecule Caspr3) | CNTNAP3 CASPR3 KIAA1714 | Q9BZ76 | 1 |
| Contactin-associated protein-like 3B | CNTNAP3B | A0A087WUH3 | 1 |
| Contactin-associated protein-like 3B (Cell recognition molecule Caspr3b) | CNTNAP3B CASPR3B | Q96NU0 | 1 |
| Contactin-associated protein-like 4 | CNTNAP4 | F5H107 | 1 |
| Contactin-associated protein-like 4 | CNTNAP4 | A0A087WTA1 | 1 |
| COP9 signalosome complex subunit 1 (Fragment) | GPS1 | J3QL53 | 1 |
| COP9 signalosome complex subunit 1 (Fragment) | GPS1 | J3QLT0 | 1 |
| COP9 signalosome complex subunit 1 (Fragment) | GPS1 | J3KRE8 | 1 |
| COP9 signalosome complex subunit 1 (Fragment) | GPS1 | J3KSA5 | 1 |
| COP9 signalosome complex subunit 1 (Fragment) | GPS1 | J3QLE8 | 1 |
| COP9 signalosome complex subunit 1 (Fragment) | GPS1 | J3QS84 | 1 |
| COP9 signalosome complex subunit 2 (Fragment) | COPS2 | H0YKU5 | 1 |
| COP9 signalosome complex subunit 2 (Fragment) | COPS2 | H0YMC2 | 1 |
| COP9 signalosome complex subunit 3 | COPS3 | J3QKR0 | 1 |
| COP9 signalosome complex subunit 3 (Fragment) | COPS3 | K7ES36 | 1 |
| COP9 signalosome complex subunit 4 | COPS4 | D6RFN0 | 1 |
| COP9 signalosome complex subunit 5 (Fragment) | COPS5 | E5RHF2 | 1 |
| COP9 signalosome complex subunit 5 (SGN5) (Signalosome subunit 5) (EC 3.4.-.-) (Jun activation domain-binding protein 1) | COPS5 CSN5 JAB1 | O15386 | 1 |
| COP9 signalosome complex subunit 7a (Fragment) | COPS7A | F5H4U8 | 1 |
| COP9 signalosome complex subunit 8 (Fragment) | COPS8 | H7C3S9 | 1 |
| COP9 signalosome complex subunit 9 (Fragment) | COPS9 | J3QT29 | 1 |
| Copine-1 (Fragment) | CPNE1 | H0Y524 | 1 |
| Copine-1 (Fragment) | CPNE1 | Q5JX56 | 1 |
| Copine-3 (Fragment) | CPNE3 | H0YB26 | 1 |
| Copine-4 (Fragment) | CPNE4 | D6RCT2 | 1 |
| Copine-4 (Fragment) | CPNE4 | D6RFY4 | 1 |
| Copper chaperone for superoxide dismutase (Fragment) | CCS | E9PP76 | 1 |
| Cordon-bleu protein-like 1 (Fragment) | COBLL1 | H7C1G2 | 1 |
| Core histone macro-H2A.1 (Histone macroH2A1) (mH2A1) (Histone H2A.y) (H2A/y) (Medulloblastoma antigen MU-MB-50.205) | H2AFY MACROH2A1 | Q9H8P3 | 1 |
| Core histone macro-H2A.2 (Histone macroH2A2) (mH2A2) | H2AFY2 MACROH2A2 | Q5SQT2 | 1 |
| Core-binding factor subunit beta (Fragment) | CBFB | J3KRT0 | 1 |
| Coronin | 0 | B4DKU9 | 1 |
| Coronin | CORO1A | H3BRY3 | 1 |
| Coronin (Fragment) | 0 | Q59EA2 | 1 |
| Coronin-6 (Fragment) | CORO6 | K7ERF4 | 1 |
| Coronin-7 (Fragment) | CORO7 | I3L258 | 1 |
| Cortactin-binding protein 2 | CTTNBP2 | F8WB16 | 1 |
| Corticotropin-releasing factor-binding protein (CRF-BP) (CRF-binding protein) (Corticotropin-releasing hormone-binding protein) (CRH-BP) | CRHBP CRFBP | P24387 | 1 |
| Cortistatin [Cleaved into: Cortistatin-29; Cortistatin-17] | CORT UNQ307/PRO350 | O00230 | 1 |
| COUP transcription factor 1 (COUP-TF1) (COUP transcription factor I) (COUP-TF I) (Nuclear receptor subfamily 2 group F member 1) (V-erbA-related protein 3) (EAR-3) | NR2F1 EAR3 ERBAL3 TFCOUP1 | P10589 | 1 |
| COX5B protein (Fragment) | COX5B | Q6FHJ9 | 1 |
| CP protein (Fragment) | CP | Q6NSB2 | 1 |
| CPSF3 protein (Fragment) | CPSF3 | Q05BZ5 | 1 |
| Craniofacial development protein 1 (Fragment) | CFDP1 | J3KT89 | 1 |
| Creatine kinase B-type (EC 2.7.3.2) (B-CK) (Creatine kinase B chain) | CKB CKBB | A8K236 | 1 |
| Creatine kinase B-type (Fragment) | CKB | H0YJG0 | 1 |
| Creatine kinase U-type, mitochondrial (Fragment) | CKMT1B | C9JSQ1 | 1 |
| CREB-regulated transcription coactivator 1 (Mucoepidermoid carcinoma translocated protein 1) (Transducer of regulated cAMP response element-binding protein 1) (TORC-1) (Transducer of CREB protein 1) | CRTC1 KIAA0616 MECT1 TORC1 WAMTP1 | Q6UUV9 | 1 |
| CREB-regulated transcription coactivator 2 (Fragment) | CRTC2 | H0YDQ8 | 1 |
| CREB/ATF bZIP transcription factor (Host cell factor-binding transcription factor Zhangfei) (HCF-binding transcription factor Zhangfei) | CREBZF ZF | Q9NS37 | 1 |
| CRMP1 protein (Fragment) | CRMP1 | Q96I11 | 1 |
| CROCC protein (Fragment) | CROCC | A1L0S8 | 1 |
| Crooked neck-like protein 1 | CRNKL1 | Q5JY65 | 1 |
| Crossover junction endonuclease MUS81 (EC 3.1.22.-) | MUS81 | Q96NY9 | 1 |
| Cryptochrome-1 | CRY1 PHLL1 | Q16526 | 1 |
| cTAGE family member 9 (Protein cTAGE-9) | CTAGE9 | A4FU28 | 1 |
| CTD nuclear envelope phosphatase 1 | CTDNEP1 | I3L2R5 | 1 |
| CTD nuclear envelope phosphatase 1 (EC 3.1.3.16) (Serine/threonine-protein phosphatase dullard) | CTDNEP1 DULLARD | O95476 | 1 |
| CTTNBP2 (Cortactin binding protein 2) (Cortactin binding protein 2, isoform CRA_b) | CTTNBP2 hCG_15954 tcag7.1122 | Q20BG9 | 1 |
| CTTNBP2 N-terminal-like protein (Fragment) | CTTNBP2NL | B1AMN7 | 1 |
| CUB and sushi domain-containing protein 1 (CUB and sushi multiple domains protein 1) | CSMD1 KIAA1890 UNQ5952/PRO19863 | Q96PZ7 | 1 |
| CUGBP Elav-like family member 6 (CELF-6) (Bruno-like protein 6) (CUG-BP- and ETR-3-like factor 6) (RNA-binding protein BRUNOL-6) | CELF6 BRUNOL6 | Q96J87 | 1 |
| Cullin-2 | CUL2 | A0A0A0MTN0 | 1 |
| Cullin-2 | CUL2 | Q5T2B5 | 1 |
| Cullin-2 (CUL-2) | CUL2 | G3V1S2 | 1 |
| Cullin-3 | CUL3 | A0A087WTG3 | 1 |
| Cullin-4A | CUL4A | A0A087WWN2 | 1 |
| Cullin-9 | CUL9 | E9PEZ1 | 1 |
| Cullin-9 (Fragment) | CUL9 | H0YA00 | 1 |
| Cullin-associated NEDD8-dissociated protein 1 (Fragment) | CAND1 | F5H6I6 | 1 |
| Cullin-associated NEDD8-dissociated protein 2 | CAND2 | F8WBB8 | 1 |
| CX3C chemokine receptor 1 (C-X3-C CKR-1) (CX3CR1) (Beta chemokine receptor-like 1) (CMK-BRL-1) (CMK-BRL1) (Fractalkine receptor) (G-protein coupled receptor 13) (V28) | CX3CR1 CMKBRL1 GPR13 | P49238 | 1 |
| Cx9C motif-containing protein 4 (Mature T-cell proliferation 1 neighbor protein) (Mature T-cell proliferation-1 type A) (MTCP-1 type A) (Protein p8 MTCP-1) (p8MTCP1) | CMC4 C6.1B MTCP1 MTCP1NB | P56277 | 1 |
| CXXC-type zinc finger protein 4 (Inhibition of the Dvl and axin complex protein) | CXXC4 IDAX | Q9H2H0 | 1 |
| Cyclic AMP-responsive element-binding protein 3-like protein 2 (cAMP-responsive element-binding protein 3-like protein 2) (BBF2 human homolog on chromosome 7) [Cleaved into: Processed cyclic AMP-responsive element-binding protein 3-like protein 2] | CREB3L2 BBF2H7 | Q70SY1 | 1 |
| Cyclic AMP-responsive element-binding protein 3-like protein 3 (cAMP-responsive element-binding protein 3-like protein 3) (Transcription factor CREB-H) [Cleaved into: Processed cyclic AMP-responsive element-binding protein 3-like protein 3] | CREB3L3 CREBH HYST1481 | Q68CJ9 | 1 |
| Cyclic AMP-responsive element-binding protein 5 (Fragment) | CREB5 | H0YFV2 | 1 |