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.

Also Known As:

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

Enzymes and Coenzymes: 1
- Enzymes: 152586
  - Hydrolases: 2166
    - Acid Anhydride Hydrolases
      - GTP Phosphohydrolases: 2307
        GTP-Binding Proteins: 5624
        Heterotrimeric GTP-Binding Proteins: 265
        GTP-Binding Protein alpha Subunits: 54
Amino Acids, Peptides, and Proteins: 1
- Proteins: 484843
  - Carrier Proteins: 12999
    - GTP-Binding Proteins: 5624
      - Heterotrimeric GTP-Binding Proteins: 265
        GTP-Binding Protein alpha Subunits: 54
  - Membrane Proteins: 10078
    - Heterotrimeric GTP-Binding Proteins: 265
      - GTP-Binding Protein alpha Subunits: 54
  - Intracellular Signaling Peptides and Proteins: 32
    - GTP-Binding Proteins: 5624
      - Heterotrimeric GTP-Binding Proteins: 265
        GTP-Binding Protein alpha Subunits: 54

Magnaporthe grisea magB protein

Bio-Agent Context: Research Results