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.
A member of the class of benzothiazoles that is Photinus luciferin in which the phenolic hydroxy group has been replaced by a sulfo group. Enzymatic derivative of firefly luciferin produced by luciferin sulfotransferase (LST) from luciferin with 3'-phosphoadenosine-5'-phosphosulfate (PAPS) as co-substrate. Not a substrate for firefly luciferase. Likely the in-vivo storage form of luciferin.