| C |   | 
| 1 (Data Constructor) | Biobase.Primary.AA | 
| 2 (Data Constructor) | Biobase.Primary.Nuc.DNA | 
| 3 (Data Constructor) | Biobase.Primary.Nuc.RNA | 
| 4 (Data Constructor) | Biobase.Primary.Nuc.XNA | 
| 5 (Data Constructor) | Biobase.Primary.IUPAC | 
| CA | Biobase.Secondary.Basepair | 
| Canonical | Biobase.Secondary.Vienna | 
| CC | Biobase.Secondary.Basepair | 
| cdna | Biobase.Primary.Nuc.DNA, Biobase.Primary.Nuc, Biobase.Primary | 
| CG |   | 
| 1 (Data Constructor) | Biobase.Secondary.Basepair | 
| 2 (Data Constructor) | Biobase.Secondary.Vienna | 
| cgnsP | Biobase.Secondary.Vienna | 
| cguaP | Biobase.Secondary.Vienna | 
| changeNameTy | Biobase.Primary.Letter, Biobase.Primary.Nuc, Biobase.Primary | 
| charAA | Biobase.Primary.AA, Biobase.Primary | 
| charBaa | Biobase.Primary.AA, Biobase.Primary | 
| charDEG | Biobase.Primary.IUPAC, Biobase.Primary | 
| charDNA | Biobase.Primary.Nuc.DNA, Biobase.Primary.Nuc, Biobase.Primary | 
| charLetter | Biobase.Primary.Letter, Biobase.Primary.Nuc, Biobase.Primary | 
| charRNA | Biobase.Primary.Nuc.RNA, Biobase.Primary.Nuc, Biobase.Primary | 
| charXNA | Biobase.Primary.Nuc.XNA, Biobase.Primary.Nuc, Biobase.Primary | 
| CHH | Biobase.Secondary.Basepair | 
| CHS | Biobase.Secondary.Basepair | 
| CHW | Biobase.Secondary.Basepair | 
| Cis | Biobase.Secondary.Basepair | 
| cofoldStructure | Biobase.Secondary.Diagrams, Biobase.Secondary | 
| crna | Biobase.Primary.Nuc.RNA, Biobase.Primary.Nuc, Biobase.Primary | 
| CSH | Biobase.Secondary.Basepair | 
| CSS | Biobase.Secondary.Basepair | 
| CSW | Biobase.Secondary.Basepair | 
| CT | Biobase.Secondary.Basepair | 
| CTisomerism | Biobase.Secondary.Basepair | 
| CU | Biobase.Secondary.Basepair | 
| CWH | Biobase.Secondary.Basepair | 
| CWS | Biobase.Secondary.Basepair | 
| CWW | Biobase.Secondary.Basepair |