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CHEBI ONTOLOGY - ANNOTATIONS

The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/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.

Term:pregnenolone
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Accession:CHEBI:16581 term browser browse the term
Definition:A 20-oxo steroid that is pregn-5-ene substituted by a beta-hydroxy group at position 3 and an oxo group at position 20.
Synonyms:related_synonym: (3BETA)-3-HYDROXYPREGN-5-EN-20-ONE;   3beta-Hydroxypregn-5-en-20-one;   5-Pregnen-3beta-ol-20-one;   Formula=C21H32O2;   InChI=1S/C21H32O2/c1-13(22)17-6-7-18-16-5-4-14-12-15(23)8-10-20(14,2)19(16)9-11-21(17,18)3/h4,15-19,23H,5-12H2,1-3H3/t15-,16-,17+,18-,19-,20-,21+/m0/s1;   InChIKey=ORNBQBCIOKFOEO-QGVNFLHTSA-N;   SMILES=[H][C@@]12CC=C3C[C@@H](O)CC[C@]3(C)[C@@]1([H])CC[C@]1(C)[C@H](CC[C@@]21[H])C(C)=O
 alt_id: CHEBI:14881;   CHEBI:26241;   CHEBI:45027;   CHEBI:8388;   CHEBI:86573
 xref: Beilstein:2059026;   CAS:145-13-1;   DrugBank:DB02789;   HMDB:HMDB0000253;   KEGG:C01953;   KEGG:D00143;   LINCS:LSM-5550;   LIPID_MAPS_instance:LMST02030088
 xref_mesh: MESH:D011284
 xref: PDBeChem:PLO;   PMID:23572091;   PMID:24385629;   Reaxys:2059026;   Wikipedia:Pregnenolone



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Your selection has 2072 annotated objects. The maximum number of objects that can be shown is 2000. The list is too large to display.

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    Path 1
    Term Annotations click to browse term
      CHEBI ontology 19831
        chemical entity 19829
          atom 19829
            nonmetal atom 19767
              carbon atom 19724
                organic molecular entity 19724
                  lipid 17935
                    steroid 14689
                      C21-steroid 4429
                        pregnenolone 2072
                          11beta,17alpha,21-trihydroxypregnenolone 0
                          16,17-didehydropregnenolone + 0
                          17alpha,21-dihydroxypregnenolone 0
                          7-ketopregnenolone 0
                          7alpha-hydroxypregnenolone 0
                          7beta-hydroxypregnenolone 0
                          hydroxypregnenolone + 1
                          pregnenolone 16alpha-carbonitrile 2057
                          pregnenolone 3-beta-D-glucoside 0
                          pregnenolone sulfate 6
    Path 2
    Term Annotations click to browse term
      CHEBI ontology 19831
        subatomic particle 19829
          composite particle 19829
            hadron 19829
              baryon 19829
                nucleon 19829
                  atomic nucleus 19829
                    atom 19829
                      main group element atom 19779
                        p-block element atom 19779
                          carbon group element atom 19728
                            carbon atom 19724
                              organic molecular entity 19724
                                organic molecule 19677
                                  organic cyclic compound 19490
                                    organic polycyclic compound 17245
                                      steroid 14689
                                        hydroxy steroid 14434
                                          3-hydroxy steroid 12772
                                            3beta-hydroxy steroid 2533
                                              3beta-hydroxy-Delta(5)-steroid 2365
                                                pregnenolone 2072
                                                  11beta,17alpha,21-trihydroxypregnenolone 0
                                                  16,17-didehydropregnenolone + 0
                                                  17alpha,21-dihydroxypregnenolone 0
                                                  7-ketopregnenolone 0
                                                  7alpha-hydroxypregnenolone 0
                                                  7beta-hydroxypregnenolone 0
                                                  hydroxypregnenolone + 1
                                                  pregnenolone 16alpha-carbonitrile 2057
                                                  pregnenolone 3-beta-D-glucoside 0
                                                  pregnenolone sulfate 6
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