Phylogica Ltd.

Subiaco, Australia

Phylogica Ltd.

Subiaco, Australia

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The present invention provides the means for producing libraries of peptide structures for drug screening applications that are capable of folding or assuming their native conformations independently of artificial scaffolds or flanking sequences in the proteins from which they are derived. The libraries can be highly diverse such that they are representative of the repertoire of protein structures existing in nature. The libraries can also be non-redundant or normalized such that the bias towards specific structures existing in source data sets and/or in nature is/are removed. In a particularly preferred embodiment, the present invention provides 30,000 independent fold structures produced by this method. The present invention also provides computer-readable media and systems comprising structural data in relation to the peptide libraries, and methods for displaying and screening the libraries.


Patent
Phylogica Ltd and Cambridge Enterprise Ltd | Date: 2013-02-07

The present invention relates to improved and integrated methods for the characterisation of an interaction site on a target protein that modulates the phenotype of a mammalian cell, such as a phenotype other than death and/or reduced growth. Such methods of the present invention include those to identify a target protein modulates such a phenotype of a mammalian cell, and optionally to characterise an interaction site on said target protein. Such identification and characterisation methods are useful in the development of research tools and/or therapeutics, such protein/peptide or small molecule therapeutics. Accordingly, the present invention also relates to methods of: identification of a ligand, such as a small molecule ligand, that binds to such a target protein; and identification a compound being a candidate modulator of said phenotype of a mammalian cell. The invention further relates to peptides or proteins, or fragments, variants and/or derivatives thereof) comprising certain amino acid sequences, nucleic acids encoding such peptides or proteins and uses of such peptides or proteins or of such nucleic acids.


The present invention provides novel methods for producing nucleic acid fragment libraries that express highly diverse peptides or protein domains and, in particular, methods for producing nucleic acid fragment libraries wherein the nucleic acid fragments of the libraries are derived from two or more diverse characterized genomes.


The present invention provides a method for identifying a modulator or mediator of a biological activity, which activity includes antigenicity and or immunogenicity, said method comprising the step of:


Patent
PHYLOGICA Ltd | Date: 2011-09-16

The present invention provides compositions comprising peptidyl inhibitors of CD40L-dependent signaling that are not derived from a natural binding partner of CD40L such as CD40, or from a native CD40-CD40L interface. More particularly, the peptidyl inhibitors of the present invention are derived from natural sources that do not express CD40-Cd40L costimulatory pathways. The invention also provides synthetic derivatives and analogs of the peptidyl inhibitors having enhanced binding affinity for CD40L or enhanced inhibitory activity relative to their parent molecules.


The present invention provides a method of determining or identifying or isolating a cell-penetrating peptide (CPP) or analog or derivative thereof having cell-type selectivity and/or at least capable of passing through a Blood Brain Barrier of an animal subject. This invention also provides CPPs and analogs and derivatives thereof, such as those set forth in SEQ ID NOs: 1-27 of the Sequence Listing, and compositions comprising one or more of the CPPs, including conjugates in which a CPP or analog or derivative thereof is linked to a cargo molecule. The invention also provides methods for transporting cargo molecules across cell membranes to specific locations within cells, and for treating, preventing and/or diagnosing diseases that are treatable by a cargo molecule to which a CPP or analog or derivative of the invention is attached. The invention also provides tailored peptide libraries for use in identifying or isolating CPPs.


The present invention provides novel methods for producing nucleic acid fragment libraries that express highly diverse peptides or protein domains and, in particular, methods for producing nucleic acid fragment libraries wherein the nucleic acid fragments of the libraries are derived from two or more diverse characterized genomes.


The present invention provides a method for identifying a modulator or mediator of a biological activity, which activity includes antigenicity and/or immunogenicity, said method comprising the steps of: (i) producing a gene fragment expression library derived from defined nucleotide sequence fragments; and (ii) assaying the expression library for at least an amino acid sequence derived from step (i) for a biological activity wherein that activity is different from any activity the amino acid sequence may have in its native environment.


Patent
PHYLOGICA Ltd | Date: 2014-06-26

This disclosure provides a method of isolating peptides having cell-penetrating function, wherein the peptides are detected as biotinylated molecules only following their translocation through the cell membrane. The disclosure also provides methods for validating the cell-penetrating function of the peptides, or that may be employed in their own right to isolate such peptides, wherein the peptides are detectable by virtue of their ability to transport a detectable cargo into the cytoplasm, such as a cargo toxin or a fragment of a green fluorescent protein (GFP) that is required for complementation of a functional GFP. The disclosure also provides non-canonical peptides having cell-penetrating function that differ structurally from known CPPs such as TAT, VP22, transportan and penetratin, and that are capable of translocating cell membranes and escaping the endosome. The disclosed peptides have utility in transporting cargo therapeutics and diagnostics into cells.


The present invention provides the means for producing libraries of peptide structures for drug screening applications that are capable of folding or assuming their native conformations independently of artificial scaffolds or flanking sequences in the proteins from which they are derived. The libraries can be highly diverse such that they are representative of the repertoire of protein structures existing in nature. The libraries can also be non-redundant or normalized such that the bias towards specific structures existing in source data sets and/or in nature is/are removed. In a particularly preferred embodiment, the present invention provides 30,000 independent fold structures produced by this method. The present invention also provides computer-readable media and systems comprising structural data in relation to the peptide libraries, and methods for displaying and screening the libraries.

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