5'-phosphoribosyl-4-carboxy-5-aminoimidazole
Encyclopedia
5'-Phosphoribosyl-4-carboxy-5-aminoimidazole (or CAIR) is an intermediate
in the formation of purine
s.
It is formed by phosphoribosylaminoimidazole carboxylase
.
Reaction intermediate
A reaction intermediate or an intermediate is a molecular entity that is formed from the reactants and reacts further to give the directly observed products of a chemical reaction. Most chemical reactions are stepwise, that is they take more than one elementary step to complete...
in the formation of purine
Purine
A purine is a heterocyclic aromatic organic compound, consisting of a pyrimidine ring fused to an imidazole ring. Purines, including substituted purines and their tautomers, are the most widely distributed kind of nitrogen-containing heterocycle in nature....
s.
It is formed by phosphoribosylaminoimidazole carboxylase
Phosphoribosylaminoimidazole carboxylase
Phosphoribosylaminoimidazole carboxylase is an enzyme involved in nucleotide biosynthesis and in particular in purine biosynthesis...
.