| Basigin (Basigin, isoform CRA_d) | Bsg mCG_13385 | K3W4Q8 | 4 |
| Beta-catenin-like protein 1 (Nuclear-associated protein) (NAP) | Ctnnbl1 | Q9CWL8 | 4 |
| Beta-mannosidase (EC 3.2.1.25) (Lysosomal beta A mannosidase) (Mannanase) (Mannase) | Manba Bmn | Q8K2I4 | 4 |
| Bifunctional coenzyme A synthase (CoA synthase) [Includes: Phosphopantetheine adenylyltransferase (EC 2.7.7.3) (Dephospho-CoA pyrophosphorylase) (Pantetheine-phosphate adenylyltransferase) (PPAT); Dephospho-CoA kinase (DPCK) (EC 2.7.1.24) (Dephosphocoenzyme A kinase) (DPCOAK)] | Coasy Ukr1 | Q9DBL7 | 4 |
| BMS1 homolog, ribosome assembly protein (Yeast) (BMS1, ribosome biogenesis factor) (BMS1-like, ribosome assembly protein (Yeast)) | Bms1 Bms1l mCG_133436 | Q6PGF5 | 4 |
| Bombesin receptor subtype-3 (BRS-3) | Brs3 | O54798 | 4 |
| Borealin (Cell division cycle-associated protein 8) (MESrg) | Cdca8 | Q8BHX3 | 4 |
| BRCA2 and CDKN1A-interacting protein | Bccip | Q9CWI3 | 4 |
| Brefeldin A-inhibited guanine nucleotide-exchange protein 1 (BIG1) (Brefeldin A-inhibited GEP 1) (ADP-ribosylation factor guanine nucleotide-exchange factor 1) | Arfgef1 | G3X9K3 | 4 |
| BRI3-binding protein (I3-binding protein) | Bri3bp | Q8BXV2 | 4 |
| C-Maf-inducing protein (c-Mip) | Cmip Kiaa1694 | Q9D486 | 4 |
| C-reactive protein | Crp Ptx1 | P14847 | 4 |
| C-type mannose receptor 2 (Lectin lambda) (Macrophage mannose receptor 2) (CD antigen CD280) | Mrc2 Kiaa0709 | Q64449 | 4 |
| C-X-C motif chemokine 10 (10 kDa interferon gamma-induced protein) (Gamma-IP10) (IP-10) (C7) (Interferon-gamma induced protein CRG-2) (Small-inducible cytokine B10) | Cxcl10 Crg2 Ifi10 Inp10 Scyb10 | P17515 | 4 |
| C5a anaphylatoxin chemotactic receptor 1 (C5a anaphylatoxin chemotactic receptor) (C5a-R) (C5aR) (CD antigen CD88) | C5ar1 C5ar C5r1 | P30993 | 4 |
| C920025E04Rik protein | C920025E04Rik | Q52L73 | 4 |
| Calcineurin B homologous protein 1 | Chp1 1500003O03Rik | B0R091 | 4 |
| Calcium-binding mitochondrial carrier protein Aralar2 (Citrin) (Mitochondrial aspartate glutamate carrier 2) (Solute carrier family 25 member 13) | Slc25a13 Aralar2 | Q9QXX4 | 4 |
| Calmodulin-2 | Calm2 Cam2 CamC | P0DP27 | 4 |
| Calmodulin-3 | Calm3 Cam3 Camc | P0DP28 | 4 |
| Calmodulin-like protein 3 | Calml3 | Q9D6P8 | 4 |
| Calponin | Cnn2 | D3Z7R6 | 4 |
| Cap-specific mRNA (nucleoside-2'-O-)-methyltransferase 1 (EC 2.1.1.57) (Cap methyltransferase 1) (Cap1 2'O-ribose methyltransferase 1) (MTr1) (FtsJ methyltransferase domain-containing protein 2) | Cmtr1 Ftsjd2 Kiaa0082 | Q9DBC3 | 4 |
| Carbonic anhydrase 4 (EC 4.2.1.1) (Carbonate dehydratase IV) (Carbonic anhydrase IV) (CA-IV) | Ca4 Car4 | Q64444 | 4 |
| Carbonyl reductase [NADPH] 2 (EC 1.1.1.184) (Adipocyte protein P27) (AP27) (Lung carbonyl reductase) (LCR) (NADPH-dependent carbonyl reductase 2) | Cbr2 | P08074 | 4 |
| Carboxypeptidase B2 (EC 3.4.17.20) (Carboxypeptidase R) (CPR) (Carboxypeptidase U) (CPU) (Thrombin-activable fibrinolysis inhibitor) (TAFI) | Cpb2 Tafi | Q9JHH6 | 4 |
| Cartilage-associated protein | Crtap Casp | Q9CYD3 | 4 |
| Casein kinase 1, gamma 2 (Casein kinase 1, gamma 2, isoform CRA_b) (Casein kinase I isoform gamma-2) | Csnk1g2 mCG_13403 | Q99K78 | 4 |
| Casein kinase I isoform alpha | Csnk1a1 | E9PWB2 | 4 |
| Casein kinase I isoform alpha | Csnk1a1 | E9Q4G7 | 4 |
| Caspase-8 (CASP-8) (EC 3.4.22.61) [Cleaved into: Caspase-8 subunit p18; Caspase-8 subunit p10] | Casp8 | O89110 | 4 |
| Catenin (Cadherin associated protein), delta 1, isoform CRA_a (Catenin delta-1) | Ctnnd1 mCG_3223 | G3X9V2 | 4 |
| Catenin alpha-2 (Alpha N-catenin) | Ctnna2 Catna2 | Q61301 | 4 |
| Cathepsin S (EC 3.4.22.27) | Ctss Cats | O70370 | 4 |
| CCR4-NOT transcription complex subunit 3 (CCR4-associated factor 3) | Cnot3 Not3 | Q8K0V4 | 4 |
| CD2 antigen cytoplasmic tail-binding protein 2 (CD2 cytoplasmic domain-binding protein 2) (CD2 tail-binding protein 2) | Cd2bp2 | Q9CWK3 | 4 |
| CD99 antigen-like protein 2 | Cd99l2 | I7HJQ8 | 4 |
| CDP-diacylglycerol--inositol 3-phosphatidyltransferase (EC 2.7.8.11) (Phosphatidylinositol synthase) (PI synthase) (PtdIns synthase) | Cdipt Pis1 | Q8VDP6 | 4 |
| Cell division cycle protein 123 homolog | Cdc123 | Q8CII2 | 4 |
| Centrosome-associated protein CEP250 (250 kDa centrosomal protein) (Cep250) (Centrosomal Nek2-associated protein 1) (C-Nap1) (Centrosomal protein 2) (Intranuclear matrix protein) | Cep250 Cep2 Inmp | Q60952 | 4 |
| Ceramide glucosyltransferase (EC 2.4.1.80) (GLCT-1) (Glucosylceramide synthase) (GCS) (UDP-glucose ceramide glucosyltransferase) (UDP-glucose:N-acylsphingosine D-glucosyltransferase) | Ugcg | O88693 | 4 |
| cGMP-specific 3',5'-cyclic phosphodiesterase (EC 3.1.4.35) (cGMP-binding cGMP-specific phosphodiesterase) (CGB-PDE) | Pde5a Pde5 | Q8CG03 | 4 |
| Chemokine (C-X-C motif) ligand 7, isoform CRA_b (Chemokine subfamily B Cys-X-Cys) (Platelet basic protein) (Pro-platelet basic protein) (Putative uncharacterized protein) (Thymus chemokine 1) | Ppbp Cxcl7 mCG_1702 | Q9EQI5 | 4 |
| Choline-phosphate cytidylyltransferase B (EC 2.7.7.15) (CCT-beta) (CTP:phosphocholine cytidylyltransferase B) (CCT B) (CT B) (Phosphorylcholine transferase B) | Pcyt1b | Q811Q9 | 4 |
| Chondroadherin-like protein | Chadl SLRR4B | E9Q7T7 | 4 |
| Chromatin target of PRMT1 protein (Friend of PRMT1 protein) (Small arginine- and glycine-rich protein) (SRAG) | Chtop Fop MNCb-1706 | Q9CY57 | 4 |
| Citron Rho-interacting kinase | Cit | D3YU89 | 4 |
| CKLF-like MARVEL transmembrane domain-containing protein 7 (Chemokine-like factor superfamily member 7) (LNV) | Cmtm7 Cklfsf7 Lnv | Q9ESD6 | 4 |
| Class Ib MHC antigen Qa-2 | H2-Q8 Q8 | P79567 | 4 |
| Class Ib MHC antigen Qa-2 (Histocompatibility 2, Q region locus 6) | H2-Q6 | P79568 | 4 |
| Clathrin interactor 1 (Enthoprotin) (Epsin-4) (Epsin-related protein) (EpsinR) | Clint1 Enth Epn4 Epnr Kiaa0171 | Q99KN9 | 4 |
| Clathrin light chain | Clta mCG_16456 | Q6PFA2 | 4 |
| Claudin-4 (Clostridium perfringens enterotoxin receptor) (CPE-R) (CPE-receptor) | Cldn4 Cper Cpetr1 | O35054 | 4 |
| Cleavage and polyadenylation specificity factor subunit 2 (Cleavage and polyadenylation specificity factor 100 kDa subunit) (CPSF 100 kDa subunit) | Cpsf2 Cpsf100 Mcpsf | O35218 | 4 |
| Cleavage stimulation factor subunit 2 (CF-1 64 kDa subunit) (Cleavage stimulation factor 64 kDa subunit) (CSTF 64 kDa subunit) (CstF-64) | Cstf2 | Q8BIQ5 | 4 |
| Cleft lip and palate transmembrane protein 1 homolog (Thymic epithelial cell surface antigen) | Clptm1 N14 | Q8VBZ3 | 4 |
| CLIP-associating protein 1 | Clasp1 | E9Q6L0 | 4 |
| CLIP-associating protein 2 | Clasp2 | E9Q8N5 | 4 |
| CLIP-associating protein 2 (Cytoplasmic linker-associated protein 2) | Clasp2 Kiaa0627 | Q8BRT1 | 4 |
| Cohesin subunit SA-2 (SCC3 homolog 2) (Stromal antigen 2) | Stag2 Sa2 Sap2 | O35638 | 4 |
| Coiled-coil and C2 domain-containing protein 1B (Fragment) | Cc2d1b | F6XC25 | 4 |
| Coiled-coil domain-containing protein 47 (Adipocyte-specific protein 4) | Ccdc47 Asp4 | Q9D024 | 4 |
| Coiled-coil domain-containing protein 6 | Ccdc6 | D3YZP9 | 4 |
| Coiled-coil domain-containing protein 69 | Ccdc69 D11Ertd461e | Q3TCJ8 | 4 |
| Collagen alpha-1(II) chain (Alpha-1 type II collagen) [Cleaved into: Collagen alpha-1(II) chain; Chondrocalcin] | Col2a1 | P28481 | 4 |
| Collagen alpha-1(XV) chain [Cleaved into: Restin (Endostatin-XV)] | Col15a1 | O35206 | 4 |
| Collagen alpha-1(XVIII) chain | Col18a1 | E9QPX1 | 4 |
| Collagen alpha-2(V) chain | Col5a2 | Q3U962 | 4 |
| Collagen type V alpha 3 chain (Collagen, type V, alpha 3) (Procollagen, type V, alpha 3, isoform CRA_b) | Col5a3 mCG_67925 | Q9JLI2 | 4 |
| COMM domain-containing protein 4 | Commd4 | Q9CQ02 | 4 |
| COMM domain-containing protein 7 | Commd7 | Q8BG94 | 4 |
| Complement C1s-B subcomponent (EC 3.4.21.42) (C1 esterase) (Complement component 1 subcomponent s-B) [Cleaved into: Complement C1s-B subcomponent heavy chain; Complement C1s-B subcomponent light chain] | C1sb C1s Gm5077 | Q8CFG8 | 4 |
| Complement component C8 alpha chain (Complement component 8 subunit alpha) | C8a | Q8K182 | 4 |
| Condensin-2 complex subunit D3 (Non-SMC condensin II complex subunit D3) | Ncapd3 Kiaa0056 | Q6ZQK0 | 4 |
| Condensin-2 complex subunit G2 (Chromosome-associated protein G2) (CAP-G2) (Leucine zipper protein 5) (More than blood protein) (Non-SMC condensin II complex subunit G2) | Ncapg2 Luzp5 Mtb | Q6DFV1 | 4 |
| Connective tissue growth factor (CCN family member 2) (Hypertrophic chondrocyte-specific protein 24) (Protein FISP-12) | Ctgf Ccn2 Fisp-12 Fisp12 Hcs24 | P29268 | 4 |
| Conserved oligomeric Golgi complex subunit 1 (COG complex subunit 1) (Component of oligomeric Golgi complex 1) (Low density lipoprotein receptor defect B-complementing protein) | Cog1 Ldlb | Q9Z160 | 4 |
| Conserved oligomeric Golgi complex subunit 2 (COG complex subunit 2) (Component of oligomeric Golgi complex 2) (Low density lipoprotein receptor defect C-complementing protein) | Cog2 Ldlc | Q921L5 | 4 |
| Conserved oligomeric Golgi complex subunit 4 (COG complex subunit 4) (Component of oligomeric Golgi complex 4) | Cog4 | Q8R1U1 | 4 |
| Copine-5 (Copine V) | Cpne5 | Q8JZW4 | 4 |
| Copine-9 (Copine IX) | Cpne9 | Q1RLL3 | 4 |
| Coronin-2B | Coro2b | Q8BH44 | 4 |
| Cortactin, isoform CRA_a (Cttn protein) (Putative uncharacterized protein) (Src substrate cortactin) | Cttn mCG_21254 | Q921L6 | 4 |
| Creatine kinase U-type, mitochondrial (EC 2.7.3.2) (Acidic-type mitochondrial creatine kinase) (Mia-CK) (Ubiquitous mitochondrial creatine kinase) (U-MtCK) | Ckmt1 | P30275 | 4 |
| CSC1-like protein 1 (Transmembrane protein 63A) | Tmem63a Kiaa0792 | Q91YT8 | 4 |
| CTD small phosphatase-like protein (CTDSP-like) (EC 3.1.3.16) (Carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 3) (NIF-like protein) (Nuclear LIM interactor-interacting factor 1) (NLI-interacting factor 1) (Small C-terminal domain phosphatase 3) (SCP3) (Small CTD phosphatase 3) | Ctdspl Nif1 Nifl | P58465 | 4 |
| CUGBP Elav-like family member 2 (Fragment) | Celf2 | V9GX43 | 4 |
| Cullin-5 | Cul5 | E9Q6Z0 | 4 |
| Cystathionine gamma-lyase (EC 4.4.1.1) (Cysteine-protein sulfhydrase) (Gamma-cystathionase) | Cth | Q8VCN5 | 4 |
| Cysteine-rich and transmembrane domain-containing protein 1 | Cystm1 | Q8K353 | 4 |
| Cysteine-rich and transmembrane domain-containing protein 1 (Fragment) | Cystm1 0610010O12Rik | D3YVS7 | 4 |
| Cysteine-rich hydrophobic domain-containing protein 2 | Chic2 | Q9D9G3 | 4 |
| Cytochrome b-5, isoform CRA_a (Cytochrome b5) | Cyb5a Cyb5 mCG_1553 | G5E850 | 4 |
| Cytochrome b-c1 complex subunit 8 (Complex III subunit 8) (Complex III subunit VIII) (Ubiquinol-cytochrome c reductase complex 9.5 kDa protein) (Ubiquinol-cytochrome c reductase complex ubiquinone-binding protein QP-C) | Uqcrq | Q9CQ69 | 4 |
| Cytochrome c oxidase subunit 5B, mitochondrial (Cytochrome c oxidase polypeptide Vb) | Cox5b | P19536 | 4 |
| Cytochrome P450 2F2 (EC 1.14.14.-) (CYPIIF2) (Cytochrome P450-NAH-2) (Naphthalene dehydrogenase) (Naphthalene hydroxylase) | Cyp2f2 Cyp2f-2 | P33267 | 4 |
| Cytohesin-3 (ARF nucleotide-binding site opener 3) (Protein ARNO3) (General receptor of phosphoinositides 1) (Grp1) (PH, SEC7 and coiled-coil domain-containing protein 3) (CLM3) (SEC7 homolog C) (mSec7-3) | Cyth3 Grp1 Pscd3 | O08967 | 4 |
| Cytokine receptor-like factor 1 (Cytokine receptor-like molecule 3) (CRLM-3) (Cytokine-like factor 1) (CLF-1) (Novel cytokine receptor 6) (NR6) | Crlf1 Crlm3 | Q9JM58 | 4 |
| Cytoskeleton-associated protein 5 | Ckap5 | Z4YL78 | 4 |
| Cytosolic purine 5'-nucleotidase | Nt5c2 | E9Q9M1 | 4 |