Arabidospsis thaliana PrRs (pinoresinol/lariciresinol reductases)

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (10:09, 2 January 2025) (edit) (undo)
 
(2 intermediate revisions not shown.)
Line 50: Line 50:
What might look contradictory is the fact that PrR1 and PrR2 are coexpressed with lignin related genes and that pinoresinol, the first substrate of the PLR enzymes, is synthetized by the dimerization of two coniferyl alcohols, onde of the monomers that constitute the lignin polymer. We could imagine that the production of lignans would compete for substrates with the biosynthesis of lignin, and therefore the coexpression mentioned would be questionable. Zhao and collaborators (2014)<ref name="zhao" />.have shown that mutants of A. thaliana without the function of the PrR1 enzyme show lower content of lignin, meaning that, somehow the production of lignans is important for lignification and related to lignin polymerization.
What might look contradictory is the fact that PrR1 and PrR2 are coexpressed with lignin related genes and that pinoresinol, the first substrate of the PLR enzymes, is synthetized by the dimerization of two coniferyl alcohols, onde of the monomers that constitute the lignin polymer. We could imagine that the production of lignans would compete for substrates with the biosynthesis of lignin, and therefore the coexpression mentioned would be questionable. Zhao and collaborators (2014)<ref name="zhao" />.have shown that mutants of A. thaliana without the function of the PrR1 enzyme show lower content of lignin, meaning that, somehow the production of lignans is important for lignification and related to lignin polymerization.
 +
 +
=='''3D structures of Pinoresinol/Lariciresinol Reductase'''==
 +
 +
Updated on {{REVISIONDAY2}}-{{MONTHNAME|{{REVISIONMONTH}}}}-{{REVISIONYEAR}}
 +
 +
[[7cs9]] – AtPrR1 -''Arabidopsis thaliana''<br />
 +
[[7csa]] – AtPrR1 + NADP <br />
 +
[[7csd]], [[7cse]] – AtPrR1 + NADP + lariciresinol <br />
 +
[[7csf]] – AtPrR1 + NADP + secoisolariciresinol <br />
 +
[[7csb]], [[7csc]] – AtPrR1 + NADP + pinoresinol <br />
 +
[[7csg]] – AtPrR2 <br />
 +
[[7csh]] – ItPrR2 + NADP + pinoresinol <br />
 +
[[1qyd]] – PrR - giant arborvitae<br />
 +
[[7cs2]] – ItPrR1 -''Isatis tinctoria''<br />
 +
[[7cs3]] – ItPrR1 + NADP <br />
 +
[[7cs6]] – ItPrR1 + NADP + lariciresinol <br />
 +
[[7cs4]], [[7cs5]] – ItPrR1 + NADP + pinoresinol <br />
 +
[[7cs7]], [[7cs8]] – ItPrR1 + NADP + secoisolariciresinol <br />
=='''References'''==
=='''References'''==
Line 57: Line 75:
</StructureSection>
</StructureSection>
 +
[[Category:Topic Page]]

Current revision

Página sobre a PrR1 e PrR2 de Arabidopsis feita por alunos da Biologia da USP São Paulo.


A. thaliana PrRs

A. thaliana PrR2 sturcture (PDB code 7csg)

Drag the structure with the mouse to rotate
Personal tools