protosite

From proto- +‎ site.

protosite (plural protosites)

1. (biochemistry) Any part of a biomolecule that has the potential to be a site for the attachment of another one
   • 2015 December 23, “Rubipodanin A, the First Natural N -Desmonomethyl Rubiaceae-Type Cyclopeptide from Rubia podantha, Indicating an Important Role of the N 9 -Methyl Group in the Conformation and Bioactivity”, in PLOS ONE‎^[1], →DOI:

     To expand the distribution of plant resources containing RAs and explore the functional role of N-methylated amino acids in natural RAs in the maintenance of the conformation and bioactivity, we structurally and pharmacologically investigated interesting RAs using the TLC cyclopeptide protosite detection method with ninhydrin [23 ] from R.