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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

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Accession:CHEBI:73271 term browser browse the term
Definition:A 7-deazaguanine ribonucleoside having 7-formamidino-7-deazaguanine as the nucleobase. It is found in the majority of archaeal tRNAs specifically at position 15 of the dihydrouridine loop (D-loop), a position not modified in either eukaryotic or bacterial tRNA.
Synonyms:exact_synonym: 2-amino-4-oxo-7-(beta-D-ribofuranosyl)-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carboximidamide
 related_synonym: 7-formamidino-7-deazaguanosine;   Formula=C12H16N6O5;   G*;   InChI=1S/C12H16N6O5/c13-8(14)3-1-18(9-5(3)10(22)17-12(15)16-9)11-7(21)6(20)4(2-19)23-11/h1,4,6-7,11,19-21H,2H2,(H3,13,14)(H3,15,16,17,22)/t4-,6-,7-,11-/m1/s1;   InChIKey=PEMQXWCOMFJRLS-RPKMEZRRSA-N;   SMILES=NC(=N)c1cn([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)c2nc(N)[nH]c(=O)c12
 xref: CAS:148608-52-0;   MetaCyc:CPD-13057;   PMID:18004462;   PMID:21999246;   PMID:22032275;   PMID:23201278;   PMID:9242689;   Reaxys:18583543

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  CHEBI ontology 19817
    chemical entity 19817
      atom 19815
        nonmetal atom 19694
          nitrogen atom 18602
            nitrogen molecular entity 18602
              amidine 812
                carboxamidine 806
                  7-formamidino-7-deazaguanine 0
                    archaeosine 0
                      7-amido-7-deazaguanosine 0
                      archaeosine residue 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19817
    subatomic particle 19815
      composite particle 19815
        hadron 19815
          baryon 19815
            nucleon 19815
              atomic nucleus 19815
                atom 19815
                  main group element atom 19705
                    p-block element atom 19705
                      carbon group element atom 19614
                        carbon atom 19603
                          organic molecular entity 19603
                            heteroorganic entity 19202
                              organochalcogen compound 18915
                                organooxygen compound 18838
                                  carbohydrates and carbohydrate derivatives 12252
                                    carbohydrate 12252
                                      carbohydrate derivative 11881
                                        glycosyl compound 10936
                                          N-glycosyl compound 5484
                                            nucleoside 5345
                                              ribonucleoside 710
                                                7-deazaguanine ribonucleoside 0
                                                  archaeosine 0
                                                    7-amido-7-deazaguanosine 0
                                                    archaeosine residue 0
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