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Galkina, S.

Publications and source records attributed to Galkina, S..

2 recordsLinked to original sources

Cameo: A Python Library for Computer Aided Metabolic Engineering and Optimization of Cell Factories

Computational systems biology methods enable rational design of cell factories on a genomescale and thus accelerate the engineering of cells for the production of valuable chemicals and proteins. Unfortunately, for the majority of these methods implementations are either not published, rely on proprietary software, or do not provide documented interfaces, which has precluded their mainstream adoption in the field. In this work we present cameo, a platform-independent software that enables in silico design of cell factories and targets both experienced modelers as well as users new to the field. It is written in Python and implements state-of-the-art methods for enumerating and prioritizing knock-out, knock-in, over-expression, and down-regulation strategies and combinations thereof. Cameo is an open source software project and is freely available under the Apache License 2.0. A dedicated website including documentation, examples, and installation instructions can be found at http://cameo.bio. Users can also give cameo a try at http://try.cameo.bio.

bioengineering

Evolution of ribosomal internal transcribed spacers in Deuterostomia

Sequences of ribosomal internal transcribed spacers (ITSs) are of great importance to molecular phylogenetics and DNA barcoding, but remain unstudied in some large taxa of Deuterostomia. We have analyzed complete ITS1 and ITS2 sequences in 62 species from 16 Deuterostomia classes, with ITSs sequences in 24 species from 11 classes initially obtained using unannotated contigs and raw read sequences. A general tendency for both ITS length and GC-content increase from interior to superior Deuterostomia taxa, a uniform GC-content in both ITSs within the same species, thymine content decrease in sense DNA sequences of both ITSs are shown. A possible role of GC-based gene conversion in Deuterostomia ITSs evolutionary changes is hypothesized. The first example of non-LTR retrotransposon insertion into ITS sequence in Deuterostomia is described in turtle Geochelone nigra. The roles of mobile genetic element insertions in the evolution of ITS sequences in some Sauropsida taxa are discussed as well.

molecular biology