Methods and compositions relating to the engineering of an improved protein with methionine-γ-lyase enzyme activity are described. For example, in certain aspects there may be disclosed a modified cystathionine-γ-lyase (CGL) comprising one or more amino acid substitutions and capable of degrading methionine. Furthermore, certain aspects of the invention provide compositions and methods for the treatment of cancer with methionine depletion using the disclosed proteins or nucleic acids.

Methods and compositions relating to the engineering of an improved protein with methionine-γ-lyase enzyme activity are described. For example, in certain aspects there may be disclosed a modified cystathionine-γ-lyase (CGL) comprising one or more amino acid substitutions and capable of degrading methionine. Furthermore, certain aspects of the invention provide compositions and methods for the treatment of cancer with methionine depletion using the disclosed proteins or nucleic acids.

Provided are a lysine decarboxylase immobilized cell and preparation method thereof.

Provided are a lysine decarboxylase immobilized cell and preparation method thereof.

Herbicide-resistant rice plants, isolated polynucleotides that encode herbicide resistant and wild-type acetohydroxy-acid synthase large subunit 1 (AHASL1) polypeptides, and the amino acid sequences of these polypeptides, are described. Expression cassettes and transformation vectors comprising the polynucleotides of the invention, as well as plants and host cells transformed with the polynucleotides, are described. Methods of using the polynucleotides to enhance the resistance of plants to imidazolinone herbicides, and methods for controlling weeds in the vicinity of herbicide-resistant plants are also described.

Herbicide-resistant rice plants, isolated polynucleotides that encode herbicide resistant and wild-type acetohydroxy-acid synthase large subunit 1 (AHASL1) polypeptides, and the amino acid sequences of these polypeptides, are described. Expression cassettes and transformation vectors comprising the polynucleotides of the invention, as well as plants and host cells transformed with the polynucleotides, are described. Methods of using the polynucleotides to enhance the resistance of plants to imidazolinone herbicides, and methods for controlling weeds in the vicinity of herbicide-resistant plants are also described.

The invention relates to compositions and methods, including polynucleotide sequences, amino acid sequences, recombinant host cells and recombinant host cell cultures engineered to produce fatty acid derivative compositions comprising fatty acids, fatty alcohols, fatty aldehydes, fatty esters, alkanes, terminal olefins, internal olefins or ketones. The fatty acid derivative composition is produced extracellularly with a higher titer, yield or productivity than the corresponding wild type or non-engineered host cell.

The invention relates to compositions and methods, including polynucleotide sequences, amino acid sequences, recombinant host cells and recombinant host cell cultures engineered to produce fatty acid derivative compositions comprising fatty acids, fatty alcohols, fatty aldehydes, fatty esters, alkanes, terminal olefins, internal olefins or ketones. The fatty acid derivative composition is produced extracellularly with a higher titer, yield or productivity than the corresponding wild type or non-engineered host cell.

Methods and systems for producing prescribed unit size poly(3-hydroxyalkanoate) (PHA) polymers and copolymers are provided. The methods and systems can employ recombinant bacteria that are not native producers of PHA or lack enzymes to degrade PHA once synthesized, metabolize short to long chain fatty acids without induction, and express an (R)-specific enoyl-CoA hydratase and a PHA synthase, the (R)-specific enoyl-CoA hydratase and PHA synthase having wide substrate specificities. The recombinant bacteria are fed at least one fatty acid substrate that is equal in carbon length to the prescribed or desired unit size of the PHA polymer to be produced. The prescribed unit size PHA that is produced is then isolated and/or purified.

Methods and systems for producing prescribed unit size poly(3-hydroxyalkanoate) (PHA) polymers and copolymers are provided. The methods and systems can employ recombinant bacteria that are not native producers of PHA or lack enzymes to degrade PHA once synthesized, metabolize short to long chain fatty acids without induction, and express an (R)-specific enoyl-CoA hydratase and a PHA synthase, the (R)-specific enoyl-CoA hydratase and PHA synthase having wide substrate specificities. The recombinant bacteria are fed at least one fatty acid substrate that is equal in carbon length to the prescribed or desired unit size of the PHA polymer to be produced. The prescribed unit size PHA that is produced is then isolated and/or purified.