| C3orf30 protein | C3orf30 | B7ZM15 | 1 |
| C447E6.1 (Nucleotide binding protein 1 (E.coli MinD like) ) (Fragment) | NUBP1 | Q2YS46 | 1 |
| C6orf25 protein (Megakaryocyte and platelet inhibitory receptor G6b) | C6orf25 MPIG6B | B7ZLJ5 | 1 |
| C8A protein (Fragment) | C8A | Q05CV2 | 1 |
| C8orf58 protein | C8orf58 | Q7Z758 | 1 |
| CAAX prenyl protease 2 (EC 3.4.22.-) (Farnesylated proteins-converting enzyme 2) (FACE-2) (Prenyl protein-specific endoprotease 2) (RCE1 homolog) (hRCE1) | RCE1 FACE2 RCE1A RCE1B | Q9Y256 | 1 |
| Cactin (Fragment) | CACTIN | K7EQE3 | 1 |
| Cadherin-11 (Fragment) | CDH11 | H3BR78 | 1 |
| Cadherin-2 (CDw325) (Neural cadherin) (N-cadherin) (CD antigen CD325) | CDH2 CDHN NCAD | A8MWK3 | 1 |
| Cadherin-23 | CDH23 | A0A0A0MQS6 | 1 |
| Cadherin-24 | CDH24 CDH11L UNQ2834/PRO34009 | Q86UP0 | 1 |
| Cadherin-5 | CDH5 | I3L1J2 | 1 |
| Cadherin-7 | CDH7 CDH7L1 | Q9ULB5 | 1 |
| Cadherin-9 | CDH9 | Q9ULB4 | 1 |
| Cadherin-like protein 26 (Cadherin-like protein VR20) | CDH26 | Q8IXH8 | 1 |
| Cadherin-related family member 2 (Protocadherin LKC) (PC-LKC) (Protocadherin-24) | CDHR2 PCDH24 PCLKC | A1L3U4 | 1 |
| Cadherin-related family member 3 (Cadherin-like protein 28) | CDHR3 CDH28 | Q6ZTQ4 | 1 |
| Cadherin-related family member 4 (Cadherin-like protein 29) | CDHR4 CDH29 UNQ9392/PRO34300 | A6H8M9 | 1 |
| Calbindin (Calbindin D28) (D-28K) (Vitamin D-dependent calcium-binding protein, avian-type) | CALB1 CAB27 | B7Z9J4 | 1 |
| Calcineurin B homologous protein 1 | CHP1 | H0YKE7 | 1 |
| Calcineurin B homologous protein 3 | TESC | E9PQ58 | 1 |
| Calcineurin subunit B type 1 | PPP3R1 | D3YTA9 | 1 |
| Calcineurin-binding protein cabin-1 (Calcineurin inhibitor) (CAIN) | CABIN1 KIAA0330 | Q9Y6J0 | 1 |
| Calcitonin receptor (CT-R) | CALCR | P30988 | 1 |
| Calcitonin [Cleaved into: Calcitonin; Katacalcin (Calcitonin carboxyl-terminal peptide) (CCP) (PDN-21)] | CALCA CALC1 | P01258 | 1 |
| Calcium and integrin-binding family member 3 (Kinase-interacting protein 3) (KIP 3) | CIB3 KIP3 | Q96Q77 | 1 |
| Calcium channel alpha12.2 subunit (Fragment) | CACNA1B | Q9HAT3 | 1 |
| Calcium homeostasis endoplasmic reticulum protein | CHERP | J3QK89 | 1 |
| Calcium homeostasis modulator protein 1 (Protein FAM26C) | CALHM1 FAM26C | Q8IU99 | 1 |
| Calcium signal-modulating cyclophilin ligand (CAML) | CAMLG CAML | P49069 | 1 |
| Calcium uniporter regulatory subunit MCUb, mitochondrial (MCUb) (Coiled-coil domain-containing protein 109B) | MCUB CCDC109B | Q9NWR8 | 1 |
| Calcium-activated chloride channel regulator 4 (EC 3.4.-.-) (Calcium-activated chloride channel family member 4) (hCLCA4) (Calcium-activated chloride channel protein 2) (CaCC-2) (hCaCC-2) (Chloride channel accessory 4) [Cleaved into: Calcium-activated chloride channel regulator 4, 110 kDa form; Calcium-activated chloride channel regulator 4, 30 kDa form] | CLCA4 CaCC2 UNQ562/PRO1124 | A8MQC9 | 1 |
| Calcium-activated potassium channel subunit alpha-1 (Fragment) | KCNMA1 | S4R2X4 | 1 |
| Calcium-binding and coiled-coil domain-containing protein 2 (Antigen nuclear dot 52 kDa protein) (Nuclear domain 10 protein NDP52) (Nuclear domain 10 protein 52) (Nuclear dot protein 52) | CALCOCO2 NDP52 | B4DP36 | 1 |
| Calcium-binding mitochondrial carrier protein Aralar2 | SLC25A13 | R4GN64 | 1 |
| Calcium-binding mitochondrial carrier protein SCaMC-1 | SLC25A24 | H3BMI3 | 1 |
| Calcium-binding mitochondrial carrier protein SCaMC-3 (Mitochondrial ATP-Mg/Pi carrier protein 2) (Mitochondrial Ca(2+)-dependent solute carrier protein 2) (Small calcium-binding mitochondrial carrier protein 3) (Solute carrier family 25 member 23) | SLC25A23 APC2 MCSC2 SCAMC3 | Q9BV35 | 1 |
| Calcium-binding protein 39 | CAB39 | A0A087X0K1 | 1 |
| Calcium-binding protein 39-like (Fragment) | CAB39L | Q5TAW7 | 1 |
| Calcium-binding protein 5 (CaBP5) | CABP5 CABP3 | Q9NP86 | 1 |
| Calcium-binding protein 7 (CaBP7) (Calneuron II) (Calneuron-2) | CABP7 CALN2 | Q86V35 | 1 |
| Calcium-binding protein 8 (Fragment) | CALN1 | E9PFU3 | 1 |
| Calcium-binding tyrosine phosphorylation-regulated protein (Fragment) | CABYR | J3KTE8 | 1 |
| Calcium-binding tyrosine phosphorylation-regulated protein (Fragment) | CABYR | J3QQK7 | 1 |
| Calcium-dependent secretion activator 1 | CADPS | F1T0E5 | 1 |
| Calcium-dependent secretion activator 1 (Fragment) | CADPS | H7C538 | 1 |
| Calcium-regulated heat-stable protein 1 (Fragment) | CARHSP1 | H3BQY0 | 1 |
| Calcium-responsive transactivator (SS18-like protein 1) (SYT homolog 1) | SS18L1 CREST KIAA0693 | O75177 | 1 |
| Calcium-responsive transcription factor (Amyotrophic lateral sclerosis 2 chromosomal region candidate gene 8 protein) (Calcium-response factor) (CaRF) (Testis development protein NYD-SP24) | CARF ALS2CR8 | Q8N187 | 1 |
| Calcium-transporting ATPase type 2C member 1 (Fragment) | ATP2C1 | H0Y8X9 | 1 |
| Calcium-transporting ATPase type 2C member 1 (Fragment) | ATP2C1 | H0Y9V7 | 1 |
| Calcium-transporting ATPase type 2C member 1 (Fragment) | ATP2C1 | H0Y9S7 | 1 |
| Calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1C (Cam-PDE 1C) (EC 3.1.4.17) (hCam-3) | PDE1C | E9PE92 | 1 |
| Calcium/calmodulin-dependent protein kinase (CaM kinase) II gamma, isoform CRA_n (Calcium/calmodulin-dependent protein kinase type II subunit gamma) | CAMK2G hCG_20541 | Q5SWX3 | 1 |
| Calcium/calmodulin-dependent protein kinase kinase 1 | CAMKK1 | J3KPJ3 | 1 |
| Calcium/calmodulin-dependent protein kinase type 1 | CAMK1 | F8W6S9 | 1 |
| Calcium/calmodulin-dependent protein kinase type 1 (Fragment) | CAMK1 | C9JES6 | 1 |
| Calcium/calmodulin-dependent protein kinase type 1B (Fragment) | PNCK | C9J8P0 | 1 |
| Calcium/calmodulin-dependent protein kinase type 1D | CAMK1D | A0A087WUR6 | 1 |
| Calcium/calmodulin-dependent protein kinase type 1D (EC 2.7.11.17) (CaM kinase I delta) (CaM kinase ID) (CaM-KI delta) (CaMKI delta) (CaMKID) (CaMKI-like protein kinase) (CKLiK) | CAMK1D CAMKID | Q8IU85 | 1 |
| Calcium/calmodulin-dependent protein kinase type II subunit alpha (Fragment) | CAMK2A | D6RHX9 | 1 |
| Calcium/calmodulin-dependent protein kinase type II subunit beta | CAMK2B | H7BXS4 | 1 |
| Calcium/calmodulin-dependent protein kinase type II subunit beta (Fragment) | CAMK2B | H7BZC6 | 1 |
| Calcium/calmodulin-dependent serine protein kinase (MAGUK family) | CASK | B7ZKY2 | 1 |
| Calcyclin-binding protein (Fragment) | CACYBP | B2ZWH1 | 1 |
| Calcyphosin-2 | CAPS2 | B9A061 | 1 |
| Calcyphosin-2 (Calcyphosine-2) | CAPS2 UG0636c06 | Q9BXY5 | 1 |
| Calcyphosin-2 (Fragment) | CAPS2 | C9J524 | 1 |
| Calcyphosin-like protein | CAPSL | Q8WWF8 | 1 |
| Calmin (Calponin-like transmembrane domain protein) | CLMN KIAA1188 | Q96JQ2 | 1 |
| Calmodulin-like skin protein variant (Fragment) | 0 | Q53H37 | 1 |
| Calnexin (Fragment) | CANX | D6RGY2 | 1 |
| Calnexin (Fragment) | CANX | D6RHJ3 | 1 |
| Calnexin (Fragment) | CANX | H0Y9Q7 | 1 |
| Calpain small subunit 1 (Fragment) | CAPNS1 | U3KPR7 | 1 |
| Calpain small subunit 1 (Fragment) | CAPNS1 | K7EIV0 | 1 |
| Calpain small subunit 1 (Fragment) | CAPNS1 | K7EM73 | 1 |
| Calpain-1 catalytic subunit (Fragment) | CAPN1 | E9PSA6 | 1 |
| Calpain-10 | CAPN10 | B7WPF5 | 1 |
| Calpain-10 (EC 3.4.22.-) (Calcium-activated neutral proteinase 10) (CANP 10) | CAPN10 KIAA1845 | Q9HC96 | 1 |
| Calpain-5 (Fragment) | CAPN5 | E9PS73 | 1 |
| Calpain-8 (EC 3.4.22.53) (New calpain 2) (nCL-2) (Stomach-specific M-type calpain) | CAPN8 NCL2 | A6NHC0 | 1 |
| Calpastatin | CAST | A0A0C4DGB5 | 1 |
| Calpastatin (Calpain inhibitor) (Sperm BS-17 component) | CAST | B7Z468 | 1 |
| Calpastatin (Fragment) | CAST | H0Y944 | 1 |
| Calpastatin isoform a variant (Fragment) | 0 | Q59HE3 | 1 |
| Calponin | CNN2 | Q6FHE4 | 1 |
| Calponin | CNN2 | B4DUT8 | 1 |
| Calponin (Fragment) | CNN2 | Q6FHC3 | 1 |
| Calponin (Fragment) | CNN3 | E9PDU6 | 1 |
| Calreticulin (Fragment) | CALR | K7EL50 | 1 |
| Calretinin (Fragment) | CALB2 | H3BMN5 | 1 |
| Calsyntenin-3 (Fragment) | CLSTN3 | F5H5D7 | 1 |
| Calumenin (Crocalbin) (IEF SSP 9302) | CALU | D6QS58 | 1 |
| Calumenin (Fragment) | CALU | H0Y875 | 1 |
| CaM kinase-like vesicle-associated protein | CAMKV | C9J9E2 | 1 |
| CAMK2G protein (Calcium/calmodulin-dependent protein kinase type II subunit gamma) (Fragment) | CAMK2G | Q8WU40 | 1 |
| cAMP-dependent protein kinase catalytic subunit alpha | PRKACA | K7ENJ5 | 1 |
| cAMP-dependent protein kinase catalytic subunit beta | PRKACB | A0A0A0MS54 | 1 |
| cAMP-dependent protein kinase catalytic subunit beta (Fragment) | PRKACB | B1APG1 | 1 |