# Protein Collections & Favorites Registered users may create **protein collections**. These might be used to save the set of fluorescent proteins available in plasmids in a lab freezer, or a promising set of proteins that a user is currently considering for her application. Collections can be kept private, or shared publicly with a collection description and a permanent URL – in which case collections may be useful as “curated selections” (such as the list at [www.fpvis.org](http://www.fpvis.org)). Collections have also been used to report spectra and attributes of FPs in the methods section of a publication. Collections can be created based on complicated search queries, by manually adding proteins from the respective protein pages, or by duplicating existing collections and modifying as desired. Lastly, the properties or spectra of all proteins in a collection can be easily downloaded in CSV or JSON format. {% embed url="" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.fpbase.org/collections.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.