Allophycocyanin: Difference between revisions

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New page: Blue-green algae such as ''Spirulina'' maximize their light harvesting ability by using phycobiliproteins to absorb light over a broader spectrum. One of these proteins, allophycocyanin,...
 
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Blue-green algae such as ''Spirulina'' maximize their light harvesting ability by using phycobiliproteins to absorb light over a broader spectrum.  One of these proteins, allophycocyanin, can be seen on the right.  It contains a chromophore called phycocyanobilin.   
Blue-green algae such as ''Spirulina'' maximize their light harvesting ability by using phycobiliproteins to absorb light over a broader spectrum.  One of these proteins, allophycocyanin, can be seen on the right.  It contains a chromophore called phycocyanobilin.   


<Structure load='1all' size='500' frame='true' align='right' caption='allophycocyanin' scene='Insert optional scene name here' />
<Structure load='1all' size='300' frame='true' align='right' caption='allophycocyanin' scene='Insert optional scene name here' />


Allophycocyanin is a primarily alpha-helical protein. It contains two subunits, which each have one phycocyanobilin. Allophycocyanin has a complex quaternary structure. First, trimers of the dimers form in a circular fashion, then stack on top of each other to form an antenna-like structure called the phycobilisome.   
Allophycocyanin is a primarily alpha-helical protein. It contains two subunits, which each have one phycocyanobilin. Allophycocyanin has a complex quaternary structure. First, trimers of the dimers form in a circular fashion, then stack on top of each other to form an antenna-like structure called the phycobilisome.