An acronym in cheminformatics: CAA for component-anchored annotation

CAA stands for component-anchored annotation. A component is a part of a CurlySMILES notation, separated from other parts via dot. A notation component represents a structural component of a chemical compound or a supramolecular architecture.

The following CAA types are defined in CurlySMILES:

• state and shape annotation, and
• miscellaneous interest annotation.
  

Along with the atom-anchored annotations (AAAs), CAAs provide a rich format to represent chemical structures in a multitude of extra-molecular environments and within various, customer-oriented contexts.

References
[1] Axel Drefahl: CurlySMILES: a chemical language to customize and annotate encodings of molecular and nanodevice structures. Journal of Cheminformatics 2011, 3:1.
DOI: 10.1186/1758-2946-3-1.
[2] Axel Drefahl: The CurlySMILES Project [www.axeleratio.com/csm/proj/main.htm].