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GTP-Binding Protein alpha Subunits

The GTPase-containing subunits of heterotrimeric GTP-binding proteins. When dissociated from the heterotrimeric complex these subunits interact with a variety of second messenger systems. Hydrolysis of GTP by the inherent GTPase activity of the subunit causes it to revert to its inactive (heterotrimeric) form. The GTP-Binding protein alpha subunits are grouped into families according to the type of action they have on second messenger systems.

Year introduced: 2004

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Tree Number(s): D08.811.277.040.330.300.200.100, D12.644.360.360.100, D12.776.157.325.332.100, D12.776.476.375.100, D12.776.543.325.100

MeSH Unique ID: D044385

Entry Terms:

  • GTP Binding Protein alpha Subunits
  • G-Protein alpha Subunit
  • G Protein alpha Subunit
  • alpha Subunit, G-Protein
  • GTP-Binding Protein alpha Subunit
  • GTP Binding Protein alpha Subunit

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