The present disclosure provides compositions and methods for making and using methanotrophic proline auxotrophs.

The present invention generally related to a modified microbial cell capable of producing high levels of spermidine and/spermidine derivatives. The genetically modified microbial cell comprises at least one modification to native spermidine biosynthetic pathway via putrescine together with genes involved in the S-adenosylmethionine biosyntheticpathway.

The present invention is related to an antagonist of PYCR1 for the treatment and/or prevention of a neoplastic disease.

The invention relates to muteins of the pyrroline-5-carboxylate reductase 1 (PYCR1), to nucleic acid molecules comprising a nucleotide sequence encoding such muteins, to methods of determining in a subject a predisposition of having an age related disorder associated with PYCR1, to methods of identifying a compound capable of modifying the expression of PYCR1, and methods of treating a subject having an age-related disorder associated with PYCR1. The invention further relates to a genetically modified animal and a method of modifying the expression of the PYCR1 gene in an animal.

The present disclosure provides compositions and methods for making and using methanotrophic proline auxotrophs.

The present invention relates to antisense oligonucleotides that modulate the expression of and/or function of Pyrroline-5-carboxylate reductase 1 (PYCR1), in particular, by targeting natural antisense polynucleotides of Pyrroline-5-carboxylate reductase 1 (PYCR1). The invention also relates to the identification of these antisense oligonucleotides and their use in treating diseases and disorders associated with the expression of PYCR1.

The invention relates to muteins of the pyrroline-5-carboxylate reductase 1 (PYCR1), to nucleic acid molecules comprising a nucleotide sequence encoding such muteins, to methods of determining in a subject a predisposition of having an age related disorder associated with PYCR1, to methods of identifying a compound capable of modifying the expression of PYCR1, and methods of treating a subject having an age-related disorder associated with PYCR1. The invention further relates to a genetically modified animal and a method of modifying the expression of the PYCR1 gene in an animal.

The present invention generally related to a modified microbial cell capable of producing high levels of spermidine and/spermidine derivatives. The genetically modified microbial cell comprises at least one modification to native spermidine biosynthetic pathway via putrescine together with genes involved in the S-adenosylmethionine biosyntheticpathway.