| CYCLIN A2-CDK2 COMPLEX | QZ9EX1VZ9D | protein |
| CYCLIN D1-CDK4 COMPLEX | LG6ITP3ZOX | protein |
| CYCLIN D1-CDK6 COMPLEX | G7Q035S9UG | protein |
| CYCLIN D2-CDK4 COMPLEX | JXA8GVL9CF | protein |
| CYCLIN D3-CDK4 COMPLEX | T6XB7XC1QE | protein |
| CYCLIN D3-CDK6 COMPLEX | N6U06AVV70 | protein |
| CYCLIN E1-CDK2 COMPLEX | XQ3S8XKC4N | protein |
| CYCLIN-A2 | XE2K7X7FF2 | protein |
| CYCLIN-DEPENDENT KINASE 1 | HI5PG5B00P | protein |
| CYCLIN-DEPENDENT KINASE 10 | GOM90CK511 | protein |
| CYCLIN-DEPENDENT KINASE 11A | UCB9DC3OV1 | protein |
| CYCLIN-DEPENDENT KINASE 11B | 08S09B3JLR | protein |
| CYCLIN-DEPENDENT KINASE 12 | PSZ7RFPJAB | protein |
| CYCLIN-DEPENDENT KINASE 13 | 3TY19PA609 | protein |
| CYCLIN-DEPENDENT KINASE 14 | B66ZFA2X8I | protein |
| CYCLIN-DEPENDENT KINASE 16 | 197P610VDL | protein |
| CYCLIN-DEPENDENT KINASE 17 | 9H33D38TKX | protein |
| CYCLIN-DEPENDENT KINASE 19 | RGT7V5MNP5 | protein |
| CYCLIN-DEPENDENT KINASE 2 | IEQ8K30M47 | protein |
| CYCLIN-DEPENDENT KINASE 20 | 2UU626685N | protein |
| CYCLIN-DEPENDENT KINASE 3 | 3Z6HW2D75C | protein |
| CYCLIN-DEPENDENT KINASE 4 | 5M46696SR5 | protein |
| CYCLIN-DEPENDENT KINASE 5 ACTIVATOR 1, P35 | 9DL9WOK58X | protein |
| CYCLIN-DEPENDENT KINASE 6 | VC4EQE3CAI | protein |
| CYCLIN-DEPENDENT KINASE 7 | QVI13FG2SW | protein |
| CYCLIN-DEPENDENT KINASE 8 | 5SAQ42M70W | protein |
| CYCLIN-DEPENDENT KINASE 9 | U3P2YH5TIJ | protein |
| CYCLIN-DEPENDENT KINASE INHIBITOR 2A | IJW0T2MBC1 | protein |
| CYCLIN-DEPENDENT KINASE-LIKE 1 | 34C7VD1WRM | protein |
| CYCLIN-DEPENDENT KINASE-LIKE 3 | 37PZ573TW2 | protein |
| CYCLIN-DEPENDENT KINASE-LIKE 4 | 7NC0AR1ABT | protein |
| CYCLIN-DEPENDENT KINASE-LIKE 5 | 5U9UA3MA2D | protein |
| CYCLIN-DEPENDENT PROTEIN KINASE 5 HOLOENZYME COMPLEX, P35 VARIANT | 8WC77Y8M4Q | protein |
| CYCLIN-DEPENDENT-LIKE KINASE 5 | 12LH71FSL5 | protein |
| CYCLIN-G-ASSOCIATED KINASE | NS70S6T8F0 | protein |
| CYCLINA SINENSIS SHELL | 72072K6RQP | structurallyDiverse |
| CYCLINA SINENSIS WHOLE | V1LIW95HWM | structurallyDiverse |
| CYCLINA SINENSIS, COOKED | YFK0DAR17J | structurallyDiverse |
| CYCLINDOLE | CXJ7G6BYD7 | chemical |
| CYCLIRAMINE | N61YTN00CK | chemical |
| CYCLIRAMINE MALEATE | J542BCR0IQ | chemical |
| CYCLITON | PDL57K3GVX | chemical |
| CYCLO(-THR-TRP-ILE-DAB-ORN-D-DAB-DAB-TRP-DAB-DAB-ALA-SER-D-PRO-PRO) | D014V51L37 | chemical |
| CYCLO(HIS-PRO) | Q10817UXVT | chemical |
| CYCLO(L-ALANYL-L-TRYPTOPHYL) | MDH6MD059Z | chemical |
| CYCLO(PROLYLGLYCYL) | W7O69J5F2B | chemical |
| CYCLO(PROLYLPROLINE) | XGU973420W | chemical |
| CYCLOALLIIN | WP7066JG47 | chemical |
| CYCLOARTANE | TJ8JF2M6U6 | chemical |
| CYCLOARTANOL | 52G6Q1IW86 | chemical |