scholarly journals Genome Economization in the Endosymbiont of the Wood Roach Cryptocercus punctulatus Due to Drastic Loss of Amino Acid Synthesis Capabilities

2011 ◽  
Vol 3 ◽  
pp. 1437-1448 ◽  
Author(s):  
Alexander Neef ◽  
Amparo Latorre ◽  
Juli Peretó ◽  
Francisco J. Silva ◽  
Miguel Pignatelli ◽  
...  
Keyword(s):  
Amino Acid ◽  
Acid Synthesis ◽  
Amino Acid Synthesis ◽  
Cryptocercus Punctulatus

scholarly journals Maintenance of essential amino acid synthesis pathways in the Blattabacterium cuenoti symbiont of a wood-feeding cockroach

2013 ◽  
Vol 9 (3) ◽  
pp. 20121153 ◽  
Author(s):  
Gaku Tokuda ◽  
Liam D. H. Elbourne ◽  
Yukihiro Kinjo ◽  
Seikoh Saitoh ◽  
Zakee Sabree ◽  
...  
Keyword(s):  
Amino Acid ◽  
Essential Amino Acid ◽  
Acid Synthesis ◽  
Essential Amino Acids ◽  
High Fidelity ◽  
Amino Acid Synthesis ◽  
Gut Microbes ◽  
Intracellular Symbiont ◽  
Rotting Wood ◽  
Cryptocercus Punctulatus

In addition to harbouring intestinal symbionts, some animal species also possess intracellular symbiotic microbes. The relative contributions of gut-resident and intracellular symbionts to host metabolism, and how they coevolve are not well understood. Cockroaches and the termite Mastotermes darwiniensis present a unique opportunity to examine the evolution of spatially separated symbionts, as they harbour gut symbionts and the intracellular symbiont Blattabacterium cuenoti . The genomes of B. cuenoti from M. darwiniensis and the social wood-feeding cockroach Cryptocercus punctulatus are each missing most of the pathways for the synthesis of essential amino acids found in the genomes of relatives from non-wood-feeding hosts. Hypotheses to explain this pathway degradation include: (i) feeding on microbes present in rotting wood by ancestral hosts; (ii) the evolution of high-fidelity transfer of gut microbes via social behaviour. To test these hypotheses, we sequenced the B. cuenoti genome of a third wood-feeding species, the phylogenetically distant and non-social Panesthia angustipennis . We show that host wood-feeding does not necessarily lead to degradation of essential amino acid synthesis pathways in B. cuenoti , and argue that ancestral high-fidelity transfer of gut microbes best explains their loss in strains from M. darwiniensis and C. punctulatus .

scholarly journals Petasis vs. Strecker Amino Acid Synthesis: Convergence, Divergence and Opportunities in Organic Synthesis

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1707
Author(s):  
Wayiza Masamba
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Organic Synthesis ◽  
Acid Synthesis ◽  
Physical Sciences ◽  
Amino Acid Synthesis

α-Amino acids find widespread applications in various areas of life and physical sciences. Their syntheses are carried out by a multitude of protocols, of which Petasis and Strecker reactions have emerged as the most straightforward and most widely used. Both reactions are three-component reactions using the same starting materials, except the nucleophilic species. The differences and similarities between these two important reactions are highlighted in this review.

scholarly journals Enzymatic cascade systems for D-amino acid synthesis: progress and perspectives

2021 ◽  
Author(s):  
Anwen Fan ◽  
Jiarui Li ◽  
Yangqing Yu ◽  
Danping Zhang ◽  
Yao Nie ◽  
...  
Keyword(s):  
Amino Acid ◽  
Acid Synthesis ◽  
Amino Acid Synthesis ◽  
Cascade Systems

Reconstitution of amino acid synthesis by combining spinach chloroplasts with other leaf organelles

1979 ◽  
Vol 18 (7) ◽  
pp. 1109-1111 ◽  
Author(s):  
Barbara Buchholz ◽  
Brigitte Reupke ◽  
Horst Bickel ◽  
Gernot Schultz
Keyword(s):  
Amino Acid ◽  
Acid Synthesis ◽  
Amino Acid Synthesis ◽  
Spinach Chloroplasts

Enzymes for amino acid synthesis by design

2021 ◽  
Vol 4 (5) ◽  
pp. 348-349
Author(s):  
Christopher K. Prier
Keyword(s):  
Amino Acid ◽  
Acid Synthesis ◽  
Amino Acid Synthesis

Human Platelets: Amino Acid Synthesis

1969 ◽  
Vol 131 (3) ◽  
pp. 957-959 ◽  
Author(s):  
E. Puszkin ◽  
L. Aledort ◽  
S. Puszkin
Keyword(s):  
Amino Acid ◽  
Acid Synthesis ◽  
Human Platelets ◽  
Amino Acid Synthesis

A Quaternary Nitronyl Nitroxide α-Amino Acid: Synthesis, Configurational and Conformational Assignments, and Physicochemical Properties

2014 ◽  
Vol 2014 (8) ◽  
pp. 1741-1752 ◽  
Author(s):  
Karen Wright ◽  
Edouard d'Aboville ◽  
Joseph Scola ◽  
Tommaso Margola ◽  
Antonio Toffoletti ◽  
...  
Keyword(s):  
Amino Acid ◽  
Physicochemical Properties ◽  
Acid Synthesis ◽  
Nitronyl Nitroxide ◽  
Amino Acid Synthesis
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