• Thumbnail for Purine
    also gives its name to the wider class of molecules, purines, which include substituted purines and their tautomers. They are the most widely occurring...
    24 KB (2,506 words) - 18:55, 16 October 2024
  • Purine metabolism refers to the metabolic pathways to synthesize and break down purines that are present in many organisms. Purines are biologically synthesized...
    15 KB (1,637 words) - 01:03, 23 August 2024
  • Thumbnail for Purine nucleosidase
    In enzymology, a purine nucleosidase (EC 3.2.2.1) is an enzyme that catalyzes the chemical reaction a purine nucleoside + H2O ⇌ {\displaystyle \rightleftharpoons...
    5 KB (421 words) - 14:53, 22 September 2024
  • Purine analogues are antimetabolites that mimic the structure of metabolic purines. Nucleobase analogues Thiopurines such as thioguanine are used to treat...
    2 KB (186 words) - 01:57, 24 June 2022
  • Purine synthesis may either refer to: in vivo purine synthesis: Purine metabolism#Biosynthesis laboratory purine synthesis: Purine#Laboratory synthesis...
    188 bytes (51 words) - 20:12, 29 December 2019
  • Thumbnail for Purine nucleoside phosphorylase
    Purine nucleoside phosphorylase, PNP, PNPase or inosine phosphorylase (EC 2.4.2.1) is an enzyme that in humans is encoded by the NP gene. It catalyzes...
    14 KB (1,511 words) - 15:37, 26 August 2023
  • Thumbnail for Nucleotide
    linked. Purines, however, are first synthesized from the sugar template onto which the ring synthesis occurs. For reference, the syntheses of the purine and...
    32 KB (3,305 words) - 17:50, 11 November 2024
  • Thumbnail for Xanthine
    Xanthine (redirect from 1H-purine-2,6-diol)
    archaically xanthic acid; systematic name 3,7-dihydropurine-2,6-dione) is a purine base found in most human body tissues and fluids, as well as in other organisms...
    14 KB (956 words) - 13:38, 29 October 2024
  • Thumbnail for Caffeine
    beyond usual human consumption. Caffeine is a bitter, white crystalline purine, a methylxanthine alkaloid, and is chemically related to the adenine and...
    201 KB (20,074 words) - 21:07, 7 November 2024
  • Thumbnail for Purine riboswitch
    A purine riboswitch is a sequence of ribonucleotides in certain messenger RNA (mRNA) that selectively binds to purine ligands via a natural aptamer domain...
    13 KB (1,346 words) - 20:41, 4 August 2024