Fetches information from the ChEBI database.
fetch_chebi(relation = FALSE, stars = c(3), timeout = 60)a logical value that indicates if ChEBI Ontology data will be returned instead the main compound data. This data can be used to check the relations of ChEBI ID's to each other. Default is FALSE.
a numeric vector indicating the "star" level (confidence) for which entries should
be retrieved (Possible levels are 1, 2 and 3). Default is c(3) retrieving only "3-star"
entries, which are manually annotated by the ChEBI curator team.
a numeric value specifying the time in seconds until the download of an organism archive times out. The default is 60 seconds.
A data frame that contains information about each molecule in the ChEBI database.
# \donttest{
chebi <- fetch_chebi()
head(chebi)
#> id chebi_accession parent_id definition star
#> 1 1 CHEBI:1 18357 The R-enantiomer of noradrenaline. 3
#> 2 1 CHEBI:1 18357 The R-enantiomer of noradrenaline. 3
#> 3 1 CHEBI:1 18357 The R-enantiomer of noradrenaline. 3
#> 4 1 CHEBI:1 18357 The R-enantiomer of noradrenaline. 3
#> 5 1 CHEBI:1 18357 The R-enantiomer of noradrenaline. 3
#> 6 1 CHEBI:1 18357 The R-enantiomer of noradrenaline. 3
#> name type_name type_accession accession_number formula
#> 1 Noradrenaline SYNONYM KEGG COMPOUND accession C00547 C8H11NO3
#> 2 Noradrenaline SYNONYM CAS Registry Number 51-41-2 C8H11NO3
#> 3 Noradrenaline SYNONYM PDBeChem accession LNR C8H11NO3
#> 4 Noradrenaline SYNONYM Beilstein Registry Number 4231961 C8H11NO3
#> 5 Noradrenaline SYNONYM Beilstein Registry Number 2804840 C8H11NO3
#> 6 Noradrenaline SYNONYM KEGG DRUG accession D00076 C8H11NO3
#> mass charge monoisotopic_mass
#> 1 169.17780 0 169.07389
#> 2 169.17780 0 169.07389
#> 3 169.17780 0 169.07389
#> 4 169.17780 0 169.07389
#> 5 169.17780 0 169.07389
#> 6 169.17780 0 169.07389
# }