Proterro, Inc.

Evonik Degussa Gmbh

Robert J Turner

John Aikens

Karlheinz Drauz

Michael Schwarm

Stefan Buchholz

Oliver May

Valerie Sershon

Denise Holzle

Ian Fotheringham

Compositions and methods for nitrogen sensitive regulation of expression of a transcribable nucleic acid molecule. One aspect provides a nitrogen-sensitive expression system that includes a transcription factor region comprising an NtcA binding site and a core promoter region comprising a RuBisCo promoter or a variant or a functional fragment thereof. Another aspect provides a method of transforming a host cell with an expression system. Also provided are expression cassettes, transformed host cells, and kits.

Regulated gene expression systems and constructs thereof

Provided herein is a transgenic bacteria engineered to accumulate carbohydrates, for example disaccharides. Also provided is a photobioreactor for cultivating photosynthetic microorganisms comprising a non-gelatinous, solid cultivation support suitable for providing nutrients and moisture to photosynthetic microorganisms and a physical barrier covering at least a portion of the surface of the cultivation support. Devices for the large scale and continuous cultivation of photosynthetic microorganisms incorporating photobioreactors and methods of use are disclosed. Also disclosed are methods of producing fermentable sugar from photosynthetic microorganisms using a photobioreactor of the invention.

Photobioreactor

mutants which can be used for the synthesis of D-amino acids, and to such a process. The mutants are distinguished by deficiencies in particular enzymes which break down D-amino acids and include those which produce D-amino acids via the carbamoylase/hydantoinase route.

Mutants for the preparation of D-amino acids

Transgenic photosynthetic microorganisms

Method of producing a fermentable sugar

Transgenic photosynthetic microorganisms and photobioreactor

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Aurora, IL, United States of America

Robert J Turner