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==Description==
==Description==
Adenylate Kinase, also known as ADK, is an enzyme that facilitates the phosphate exchange reaction, 2 ADP <-> ATP + AMP. This is a very important reaction in cell life involved with energy transfer, metabolism, and signaling.
 
Adenylate Kinase, also known as ADK, is an enzyme that catalyzes the reversible transfer of phosphate between ATP and AMP. It plays an important role in cell maintenance and cell growth being involved with energy metabolism, signaling, and nucleotide synthesis. The enzyme is found in many different organisms, and the following images shows the structure of Adenylate kinase from Yersinia pestis, also known as yeast.  


==Structure==
==Structure==


Adenylate kinase is made up of 214 amino acids, and the <scene name='Sandbox_50/Ak_backbone/1'>backbone</scene> of the protein can be seen, on the right, in light blue surrounding the non-hydrolysable substrate analogue (red).  
Adenylate kinase is made up of 214 amino acids, and the <scene name='Sandbox_50/Ak_backbone/1'>backbone</scene> of the protein can be seen on the right in light blue surrounding the non-hydrolysable substrate analogue (red).  
The <scene name='Sandbox_50/Ak_secondary_structure/1'>secondary_structure</scene> of the protein contains 12 alpha helices (yellow) and 7 beta sheets (green). This secondary structure is held together by <scene name='Sandbox_50/Ak_hydrogen_bonds/1'>hydrogen_bonds</scene>, which are anti-parallel between the beta sheets.  
The <scene name='Sandbox_50/Ak_secondary_structure/1'>secondary_structure</scene> of the protein contains 12 alpha helices (yellow) and 7 beta sheets (green). This secondary structure is held together by <scene name='Sandbox_50/Ak_hydrogen_bonds/1'>hydrogen_bonds</scene>, which are anti-parallel between the beta sheets.