| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P04166 | Cytochrome b5 type B; Cytochrome b5 outer mitochondrial membrane isoform; | Cyb5b; Cyb5m Omb5; | NP_085075.1; | 146 | rat |
| P00173 | Cytochrome b5; | Cyb5a; Cyb5; | NP_071581.1; | 134 | rat |
| Q6AYK6 | Calcyclin-binding protein; CacyBP; | Cacybp; | NP_001004208.1; | 229 | rat |
| Q5RKJ2 | Cytochrome b reductase 1; EC 1.-.-.-; Duodenal cytochrome b; | Cybrd1; Dcytb; | NP_001011954.1; | 286 | rat |
| P00159 | Cytochrome b; Complex III subunit 3; Complex III subunit III; Cytochrome b-c1 complex subunit 3; Ubiquinol-cytochrome-c reductase complex cytochrome b subunit; | Mt-Cyb; Cob Cytb mt-Cytb Mtcyb; | AP_004904.1; | 380 | rat |
| P10715 | Cytochrome c, testis-specific; | Cyct; | NP_036972.1; | 105 | rat |
| P62898 | Cytochrome c, somatic; | Cycs; | NP_036971.1;XP_003751847.1;XP_003753106.1; | 105 | rat |
| Q921A4 | Cytoglobin; Histoglobin; HGb; Stellate cell activation-associated protein; | Cygb; Stap; | NP_570100.1; | 190 | rat |
| P97694 | Cytohesin-1; PH, SEC7 and coiled-coil domain-containing protein 1; SEC7 homolog A; rSec7-1; | Cyth1; Pscd1 Sec7a; | NP_446362.1; | 398 | rat |
| P63035 | Cytohesin-2; ARF nucleotide-binding site opener; Protein ARNO; PH, SEC7 and coiled-coil domain-containing protein 2; CLM2; SEC7 homolog B; | Cyth2; Pscd2 Sec7b; | NP_446363.1; | 400 | rat |
| P97696 | Cytohesin-3; PH, SEC7 and coiled-coil domain-containing protein 3; SEC7 homolog C; rSec7-3; | Cyth3; Pscd3 Sec7c; | NULL | 400 | rat |
| Q5BK76 | Cysteine and histidine-rich protein 1; | Cyhr1; | NP_001020293.2; | 311 | rat |
| Q66H62 | Ubiquitin carboxyl-terminal hydrolase CYLD; EC 3.4.19.12; Deubiquitinating enzyme CYLD; Ubiquitin thioesterase CYLD; Ubiquitin-specific-processing protease CYLD; | Cyld; Cyld1; | NP_001017380.1; | 953 | rat |
| Q9ES72 | Protein CYR61; CCN family member 1; Cysteine-rich angiogenic inducer 61; Insulin-like growth factor-binding protein 10; IBP-10; IGF-binding protein 10; IGFBP-10; | Cyr61; Ccn1 Igfbp10; | NP_112617.2; | 379 | rat |
| P01039 | Cystatin-A; Cystatin-alpha; Epidermal stefin; Epidermal thiol proteinase inhibitor; [Cleaved into: Cystatin-A, N-terminally processed]; | Csta; | NP_001099347.1; | 103 | rat |
| P01041 | Cystatin-B; Cystatin-beta; Liver thiol proteinase inhibitor; Stefin-B; | Cstb; Cst6; | NP_036970.1; | 98 | rat |
| P14841 | Cystatin-C; Cystatin-3; | Cst3; | NP_036969.1; | 140 | rat |
| Q5I0L6 | Cytohesin-interacting protein; Pleckstrin homology Sec7 and coiled-coil domain-binding protein; | Cytip; Pscdbp; | NP_001012086.1; | 359 | rat |
| Q2KN99 | Cytospin-A; SPECC1-like protein; Sperm antigen with calponin homology and coiled-coil domains 1-like; | Specc1l; Cytsa; | NP_001034544.1;XP_006256401.1; | 1118 | rat |
| P19313 | Cystatin-S; Cystatin-1; Protein LM; | Cst4; Cyss; | NP_941958.1; | 141 | rat |
