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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:16645 term browser browse the term
Definition:A bilane that has formula C40H46N4O17.
Synonyms:exact_synonym: 3,8,13,18-tetrakis(carboxymethyl)-19-(hydroxymethyl)bilane-2,7,12,17-tetrapropanoic acid
 related_synonym: (hydroxymethyl)bilane;   3,8,13,18-tetrakis(carboxymethyl)-5,10,15,22,23,24-hexahydro-19-(hydroxymethyl)-21H-biline-2,7,12,17-tetrapropanoic acid;   Formula=C40H46N4O17;   Hydroxymethylbilane;   InChI=1S/C40H46N4O17/c45-17-32-25(12-40(60)61)21(4-8-36(52)53)29(44-32)15-31-24(11-39(58)59)20(3-7-35(50)51)28(43-31)14-30-23(10-38(56)57)19(2-6-34(48)49)27(42-30)13-26-22(9-37(54)55)18(16-41-26)1-5-33(46)47/h16,41-45H,1-15,17H2,(H,46,47)(H,48,49)(H,50,51)(H,52,53)(H,54,55)(H,56,57)(H,58,59)(H,60,61);   InChIKey=WDFJYRZCZIUBPR-UHFFFAOYSA-N;   SMILES=OCc1[nH]c(Cc2[nH]c(Cc3[nH]c(Cc4[nH]cc(CCC(O)=O)c4CC(O)=O)c(CCC(O)=O)c3CC(O)=O)c(CCC(O)=O)c2CC(O)=O)c(CCC(O)=O)c1CC(O)=O
 alt_id: CHEBI:14423;   CHEBI:24716;   CHEBI:5809
 xref: Beilstein:1209089;   CAS:71861-60-4;   CAS:73023-76-4;   KEGG:C01024;   KNApSAcK:C00007374
 xref_mesh: MESH:C024393
 cyclic_relationship: is_conjugate_acid_of CHEBI:57845

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preuroporphyrinogen term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Hmbs hydroxymethylbilane synthase increases abundance ISO HMBS protein results in increased abundance of hydroxymethylbilane CTD PMID:23973255 NCBI chr 8:44,673,554...44,680,950
Ensembl chr 8:44,673,554...44,680,957
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  CHEBI ontology 19812
    role 19763
      biological role 19763
        biochemical role 19380
          metabolite 19358
            prokaryotic metabolite 18420
              bacterial metabolite 18420
                Escherichia coli metabolite 18308
                  preuroporphyrinogen 1
Path 2
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  CHEBI ontology 19812
    subatomic particle 19811
      composite particle 19811
        hadron 19811
          baryon 19811
            nucleon 19811
              atomic nucleus 19811
                atom 19811
                  main group element atom 19710
                    p-block element atom 19710
                      carbon group element atom 19631
                        carbon atom 19621
                          organic molecular entity 19621
                            organic molecule 19562
                              organic cyclic compound 19356
                                organic heterocyclic compound 18596
                                  organonitrogen heterocyclic compound 17669
                                    polypyrrole 665
                                      tetrapyrrole 555
                                        linear tetrapyrrole 170
                                          bilanes 1
                                            preuroporphyrinogen 1
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