| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| O08812 | Cationic amino acid transporter 3; CAT-3; CAT3; Cationic amino acid transporter y+; Solute carrier family 7 member 3; | Slc7a3; Atrc3 Cat3; | NP_058913.1; | 619 | rat |
| P07338 | Chymotrypsinogen B; EC 3.4.21.1; [Cleaved into: Chymotrypsin B chain A; Chymotrypsin B chain B; Chymotrypsin B chain C]; | Ctrb1; Ctrb; | NP_036668.1; | 263 | rat |
| P55091 | Chymotrypsin-C; EC 3.4.21.2; Caldecrin; Serum calcium-decreasing factor; | Ctrc; | NP_001071117.1; | 268 | rat |
| Q5XIK8 | CTD small phosphatase-like protein 2; CTDSP-like 2; EC 3.1.3.-; | Ctdspl2; | NP_001014070.1; | 465 | rat |
| Q6AXP6 | Cation channel sperm-associated protein 2; CatSper2; | Catsper2; | NP_001012220.1;XP_008760409.1; | 584 | rat |
| B5DFM7 | Cation channel sperm-associated protein subunit delta; CatSper-delta; CatSperdelta; Transmembrane protein 146; | Catsperd; Tmem146; | NP_001128456.1; | 713 | rat |
| Q2IBD4 | Cortactin-binding protein 2; CortBP2; | Cttnbp2; | NP_001107873.1; | 1649 | rat |
| B1WBV0 | Cytoplasmic tRNA 2-thiolation protein 1; EC 2.7.7.-; ATP-binding domain-containing protein 3; Cytoplasmic tRNA adenylyltransferase 1; | Ctu1; Atpbd3 Ncs6; | NP_001099721.1;XP_006229046.1;XP_008757552.1; | 382 | rat |
| Q3B7U4 | Cytoplasmic tRNA 2-thiolation protein 2; | Ctu2; Ncs2; | NP_001032171.1; | 528 | rat |
| P41237 | Cortexin-1; | Ctxn1; Ctxn; | NP_001103405.1; | 82 | rat |
| Q5U3Z0 | UPF0769 protein C21orf59 homolog; | NULL | NP_001008289.1; | 290 | rat |
| O70244 | Cubilin; 460 kDa receptor; Glycoprotein 280; gp280; Intrinsic factor-cobalamin receptor; Intrinsic factor-vitamin B12 receptor; | Cubn; Ifcr; | NP_445784.1; | 3623 | rat |
| A1L131 | CUE domain-containing protein 2; | Cuedc2; | NP_001073355.1;XP_006231527.1;XP_006231528.1; | 267 | rat |
| B5DF89 | Cullin-3; | Cul3; | XP_008765448.1; | 768 | rat |
| Q9JJ31 | Cullin-5; CUL-5; Vasopressin-activated calcium-mobilizing receptor 1; VACM-1; | Cul5; Vacm1; | NP_073174.1; | 780 | rat |
| D3ZEF4 | Cullin-7; CUL-7; | Cul7; | NULL | 1692 | rat |
| Q6MGD0 | Protein CutA; Brain acetylcholinesterase putative membrane anchor; | Cuta; | NP_001158178.1;NP_001158179.1; | 177 | rat |
| P53565 | Homeobox protein cut-like 1; CCAAT displacement protein; CDP; CDP2; Homeobox protein cux-1; | Cux1; Cdpl1 Cutl1; | XP_008758482.1;XP_008767387.1; | 1504 | rat |
| Q9QZT0 | CUB and zona pellucida-like domain-containing protein 1; CUB and ZP domain-containing protein 1; Estrogen-regulated protein 1; Uterus/ovary-specific protein 44; | Cuzd1; Erg1; | NP_446457.1; | 607 | rat |
| Q5BJP2 | Spliceosome-associated protein CWC15 homolog; | Cwc15; | NP_001020158.1;XP_006242582.1; | 229 | rat |
