IP3 binds to the IP3 receptor, opening the endoplasmic reticulum Ca2+ channel

Stable Identifier
R-HSA-169680
Type
Reaction [binding]
Species
Homo sapiens
Compartment
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The IP3 receptor (IP3R) is an IP3-gated calcium channel. It is a large, homotetrameric protein, similar to other calcium channel proteins such as ryanodine. The four subunits form a 'four-leafed clover' structure arranged around the central calcium channel. Binding of ligands such as IP3 results in conformational changes in the receptor's structure that leads to channel opening.

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