| Protein | Synonyms | Taxonomy |
|---|---|---|
| Purine permease | Zea mays |
| Compound | Description |
|---|---|
| hydronium ion | |
| adenine | A purine base and a fundamental unit of ADENINE NUCLEOTIDES. |
| purine | structure in Merck Index, 9th ed, #7729 |
| cytosine | A pyrimidine base that is a fundamental unit of nucleic acids. |