摘要:
There is a need for delivery platforms with robust capacity that offer the possibility to deliver diverse protein-based therapeutics into specific cells. Described herein is a platform for delivering cargo polypeptides into cells, which is based on a recombinant molecule comprising: a cargo polypeptide, a diphtheria toxin enzymatic fragment (DTA), and a diphtheria toxin translocation fragment (DTB). The platform has been employed to deliver diverse cargo into cells, including those having low or high molecular weights. A hyper-stable cargo polypeptide has been delivered, as well as proteins of therapeutic significance (e.g, MecP2, SMN, FMRP, PNP, alpha-amylase, and RRSP). The platform is also useful for delivering genome-modifying proteins, such as the CRISPR protein, Cas9. Associated nucleic acids, pharmaceutical compositions, methods, uses, and kits are also described, including those of therapeutic significance aimed at treating diseases or disorders caused by enzyme or protein deficiency.
摘要:
The present invention is directed to a fusion protein comprising a light chain region of a Clostridial neurotoxin and a heavy chain region of a Clostridial neurotoxin, where the light and heavy chain regions are linked by a disulfide bond. The fusion protein also has a single chain antibody positioned upstream of the light chain region, where the single chain antibody possesses antigen-binding activity. Also disclosed are therapeutic agents, treatment methods, propeptide fusions, isolated nucleic acid molecules, expression systems, host cells, and methods of expressing fusion proteins.
摘要:
A protein structure capable of selective interaction with an organic target is provided. The protein structure is a polymer comprising as a repeating structural unit a recombinant fusion protein that is capable of selective interaction with the organic target. The fusion protein is comprising the moieties B, REP and CT, and optionally NT. B is a non-spidroin moiety of more than 30 amino acid residues, which provides the capacity of selective interaction with the organic target. REP is a moiety of from 70 to 300 amino acid residues and is derived from the repetitive fragment of a spider silk protein. CT is a moiety of from 70 to 120 amino acid residues and is derived from the C-terminal fragment of a spider silk protein. NT is an optional moiety of from 100 to 160 amino acid residues and is derived from the N-terminal fragment of a spider silk protein. The fusion protein and protein structure thereof is useful as an affinity medium and a cell scaffold material.
摘要:
Herein is reported a fusion polypeptide according to formula (I): NH2—S2—X1—S1—COOH, wherein X1 comprises either a random amino acid sequence or an amino acid sequence derived from a first polypeptide, S2 and S1 are non-overlapping amino acid sequences derived from a second polypeptide, and denotes a peptide bond, wherein the second polypeptide is a polypeptide with peptidyl-prolyl cis/trans-isomerase activity (PPIase activity) or is derived from the FKBP-fold domain family, wherein X1 is inserted in place of the insert-in-flap-domain of the second polypeptide.
摘要:
The present invention relates to fusion molecules that have binding specificity for pyoverdine type I, II and III and pyochelin and can be used in various applications, including diagnostic and/or therapeutic applications, for example, to inhibit or reduce growth of P. aeruginosa and/or to prevent or treat P. aeruginosa biofilm infection as well as diseases or disorders associated with P. aeruginosa biofilm infection. The present invention also concerns methods of producing the fusion molecules described herein as well as compositions and kits comprising such fusion molecules. The present invention further relates to nucleic acid molecules encoding the fusion molecules described herein.
摘要:
The present invention refers to single-chain fusion proteins comprising three soluble TNF superfamily (TNFSF) cytokine domains and nucleic acid molecules encoding these fusion proteins. The fusion proteins are substantially non-aggregating and suitable for therapeutic, diagnostic and/or research applications.