Guanylate cyclase activator
# Guanylate cyclase activator

A guanylate cyclase activator (or "GUCA") is one of group of proteins which upregulates guanylate cyclase. It is also known as guanylate cyclase-activating protein, with the abbreviation "GCAP". Mutations can be associated with vision defects.

There are five genes involved:

* GUCA1A, GUCA1B, GUCA1C
* GUCA2A, GUCA2B
