Current and Future Research
Researchers have answered many important questions regarding cyclic nucleotide-gated ion channels functions in vision and olfaction. In other physiological areas, the role of CNG channels is less defined. With technological growth, there now exists more possibilities for understanding these mechanisms.
Because nitrous oxide (NO) is involved in stimulating the synthesis of cGMP, further research is being conducted to understand the physiological interaction of NO with CNG channels, particularly in the covalent modification of CNG channels in OSNs.
Scientists are adding on to the mechanism involved in the interaction of binding sites and interfaces of subunits. This might be nonexistent in non-cooperative CNG channels. It is also possible that binding site and gate are attached to a single subunit. In order to develop these ideas, double electron-electron resonance (DEER) and rapid fixing techniques can show these mechanistic movements.
A 2007 study suggests that because of the various and complex regulatory properties in addition to the large number of CNG channels in plants, a multidisciplinary study to research plant CNG channels should be conducted. Another study in March 2011 recognizes recent reverse genetics data that has been helpful in further understanding CNG channels in plants, and also suggests that additional research be conducted to identify the upstream and downstream factors in CNGC-mediated signal transduction in plants.
Scientist are speculating whether DAG directly binds with CNG channel during inhibition. It is possible that DAG may insert itself into the transmembrane domains in the channel. It is also possible that DAG inserts itself into the interface between the channel and bilayer. The molecular mechanism of DAG inhibition is still not fully understood.
Read more about this topic: Cyclic Nucleotide-gated Ion Channel
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