This plays a significant role to ensure that the microbial community composition is able to grow and transform the substrate available at given composting times, pH and temperatures.
With these compounds the total number of substrates available for PylRS N346A/C348A) is increased to nearly 40, which demonstrates that PylRS N346A/C348A) is able to recognize phenylalanine with a substitution at any side-chain aromatic position as a substrate.
This may be due to the limiting energy substrates available during the ketogenic diet, which are incompatible with the costly insertion of AMPA receptors at the postsynaptic density.
Various quality tests must be conducted in order to fully characterize cell banks for pharmaceutical use (The WHO guidelines on animal cell substrates are available at http://www.who.int/biologicals/vaccines/TRS_978_Annex_3.pdf).
This exercise was repeated in three scenarios where only one substrate was available at a time.
Horizontal gene transfer seems to be an important evolutionary driving force in carboxydotrophy and hydrogenogenesis in this species, abilities that permitted it to survive in niches where multiple inorganic and organic substrates may be available at low concentrations.
The structure of Pol X in complex with its substrates, which is not available at present, could improve our understanding of this substrate preference and, perhaps, of the altered order of substrate binding.
Experiments were also conduced to see whether the termites go to the nearest available substrate or go further in search of more favoured substrate if the one available at shorter distance is less agreeable.
Zeth K, Ravelli R.B, Paal K, Cusack S, Bukau B, Dougan D.A, 2002, The structural basis of ClpS-mediated switch in ClpA substrate recognition, 1MG9 ; http://dx.doi.org/10.2210/pdb1MG9/pdb, Publicly available at the RCSB Protein Data Bank.
Zeth K, Ravelli R.B, Paal K, Cusack S, Bukau B, Dougan D.A, 2002, Structural basis of ClpS-mediated switch in ClpA substrate recognition, 1LZW ; http://dx.doi.org/10.2210/pdb1LZW/pdb, Publicly available at the RCSB Protein Data Bank.
