Cellulose café

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+[[!meta title="The evolutionary origin of animal cellulose synthase."]]
+[[!tag Oikopleura cellulose]]
+
+Nakashima K, Yamada L, Satou Y, Azuma J, Satoh N.
+
+Dev Genes Evol. 2004 Feb;214(2):81-8.
+
+The evolutionary origin of animal cellulose synthase.
+
+[[!pmid 14740209 desc="The cellulose synthase genes in Tunicates are thought to be of actinobacterial origin, because the tunicate CesA gene contains two domains with similarity with a cellulose synthase and a cellulase of the glycoside hydrolase (GH)-6 family, and these genes are often found in proximity in actinobacteria."]]

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 [[!meta title="Functional specialization of cellulose synthase genes of prokaryotic origin in chordate larvaceans."]]
-[[!tag Oikopleura]]
+[[!tag Oikopleura cellulose]]
 
 Development. 2010 May;137(9):1483-92. doi:10.1242/dev.044503
 

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 [[!meta title="The crystalline phase of cellulose changes under developmental control in a marine chordate."]]
-[[!tag Oikopleura]]
+[[!tag Oikopleura cellulose]]
 
 Cell Mol Life Sci. 2011 May;68(9):1623-31. doi:10.1007/s00018-010-0556-7
 

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 [[!meta title="The evolving proteome of a complex extracellular matrix, the Oikopleura house."]]
-[[!tag Oikopleura]]
+[[!tag Oikopleura cellulose]]
 
 PLoS One. 2012;7(7):e40172. doi:10.1371/journal.pone.0040172
 

diff --git a/tags/Oikopleura.mdwn b/tags/Oikopleura.mdwn
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+++ b/tags/Oikopleura.mdwn
@@ -117,9 +117,11 @@ Genes and pathways
 
  - ~80 "house proteins" have been identified and more than half lack similarity
    to known proteins ([[Hosp et al., 2012|biblio/22792236]]).
- - 2 cellulose synthase genes were found by [[Sagane et al. (2010)|biblio/20335363]]
-   and [[Nakashima et al. (2011)|biblio/20972815]].  They are used to produce different
-   crystalline forms of cellulose ([[Nakashima et al., 2011|biblio/20972815]]).
+ - 2 cellulose synthase genes, possibly acquired by horizontal gene transfer
+   from an actinobacteria([[Nakashima and coll., 2004|biblio/14740209]]), were
+   found by [[Sagane et al. (2010)|biblio/20335363]] and [[Nakashima et al.
+   (2011)|biblio/20972815]].  They are used to produce different crystalline forms
+   of cellulose ([[Nakashima et al., 2011|biblio/20972815]]).
  - _O. dioica_ has multiple CDK1 and Cyclin B paraplogs, some of which are
    implicated in oogenesis ([[Feng & Thompson, 2018|biblio/29969934]]).
  - _O. dioica_ only has the Dnmt2 methyltransferase, and lacks Dnmt1 and Dnmt3.