320 results about "Aromatic amino acids" patented technology

Provided are retroviral vector genomes and vector systems comprising the genomes. In particular, a retroviral vector genome comprising two or more NOIs, operably linked by one or more Internal Ribosome Entry Site(s); a lentiviral vector genome comprising two or more NOIs suitable for treating a neurodegenerative disorder; and a lentiviral vector genome which encodes tyrosine hydroxylase, GTP-cyclohydrolase I and, optionally, Aromatic Amino Acid Dopa Decarboxylase are provided.

The present invention relates to retroviral vector genomes and to vector systems comprising such genomes. In particular the present invention relates to a retroviral vector genome comprising two or more NOIs operably linked by one or more Internal Ribosome Entry Site(s); a lentiviral vector genome comprising two or more NOIs suitable for treating a neurodegenerative disorder; and a lentiviral vector genome which encodes tyrosine hydroxylase, GTP-cyclohydrolase I and optionally Aromatic Amino Acid Dopa Decarboxylase.

A nanostructure composed of a plurality of peptides, each peptide containing at least one aromatic amino acid, whereby one or more of these peptides is end-capping modified, is disclosed. The nanostructure can take a tubular, fibrillar, planar or spherical shape, and can encapsulate, entrap or be coated by other materials. Methods of preparing the nanostructure, and devices and methods utilizing same are also disclosed.

The present invention is directed to polypeptides containing at least three amino acids randomly joined in a linear array; wherein at least one of the three amino acids is an aromatic amino acid, at least one of the three amino acids is a charged amino acid and at least one amino acid is an aliphatic amino acid. In a preferred embodiment the polypeptide contains three or four of the following amino acids: tyrosine, alanine, glutamic acid or lysine. According to the present invention, the present polypeptides bind to antigen presenting cells, purified human lymphocyte antigens (HLA) and / or Copolymer 1-specific T cells. Moreover, according to the present invention, these polypeptides can be formulated into pharmaceutical compositions for treating autoimmune disease. The present invention further contemplates methods of treating an autoimmune disease in a mammal by administering a pharmaceutically effective amount of any one of the present polypeptides to the mammal.

A nanostructure composed of a plurality of peptides, each peptide containing at least one aromatic amino acid, whereby one or more of these peptides is end-capping modified, is disclosed. The nanostructure can take a tubular, fibrillar, planar or spherical shape, and can encapsulate, entrap or be coated by other materials. Methods of preparing the nanostructure, and devices and methods utilizing same are also disclosed.

An object of the present invention is to provide: a novel gene (polynucleotide) encoding an FAD-conjugated glucose dehydrogenase having excellent properties that it has excellent reactivity to glucose, excellent thermal stability, and excellent substrate-recognition performance and also has a low activity for maltose; a process for the production of the enzyme using a transformant cell transfected with the gene; and a method for the determination of glucose, a reagent composition for use in the determination of glucose, a biosensor for use in the determination of glucose and others, each characterized by using the enzyme obtained. The invention relates to a polynucleotide encoding an FAD-conjugated glucose dehydrogenase, comprising a polypeptide containing an amino acid sequence: X1-X2-X3-X4-X5-X6 (wherein X1 and X2 independently represent an aliphatic amino acid residue; X3 and X6 independently represent a branched amino acid residue; and X4 and X5 independently represent a heterocyclic amino acid residue or an aromatic amino acid residue); and others.

A tubular or spherical nanostructure composed of a plurality of peptides, wherein each of the plurality of peptides includes no more than 4 amino acids and whereas at least one of the 4 amino acids is an aromatic amino acid.

The present invention relates to a polypeptide represented by the formula: A1-Arg-A2-Cys-Tyr-A3-A4-X-A5-A6-Cit-Cys-A7  (I) (wherein A1 represents a hydrogen atom or an arginine, lysine, ornithine, citrulline, alanine residue, etc.; A2 represents an aromatic amino acid residue; A3, A4 and A6 represent an arginine, lysine, ornithine, citrulline or alanine residue, A5 represents a tyrosine, phenylalanine, alanine, naphthylalanine or citrulline residue; A7 represents a lysine or arginine residue in which a carboxyl group may be amidated; X represents a D-ornithyl-proline, prolyl-D-ornithine, D-lysyl-proline residue, etc.; provided that either of A1, A3, A4, A5, A6 and A7 is an alanine residue, etc., or X is citrulline, etc.) or a salt thereof.

1. An aromatic amino acid derivative represented by the formula (I) or its pharmacologically acceptable salt:wherein,R1 is a hydrogen atom or an amino-protecting group,R2 is a halogen atom or an alkyl, aralkyl or aryl group,R3 is ① a hydrogen atom, ② an aroylamino group, ③ a phenyl group substituted with lower alkyl, phenyl, phenoxy, etc. ④ a naphthyl or tetrahydronaphthyl group optionally substituted with hydroxy, lower alkoxy or di(lower)alkylamino, ⑤ an unsaturated mono-cyclic heterocyclic group containing N, O and / or S substituted with lower alkyl, phenyl, naphthyl or tetrahydroquinolyl, ⑥ an unsaturated or partially saturated condensed heterocyclic group containing N, O and / or S, optionally substituted with oxo, carboxy, amino, lower alkyl, etc.; X is a halogen atom, an alkyl group or an alkoxy group; Y is oxygen atom or nitrogen atom; l is 0 or 1; m is 0, 1 or 2; n is an integer of 0-5. This compound can inhibit a transporter (LAT1) of essential amino acid which is one of main nutrition for cancer cells and accordingly cause drain of the essential amino acid on the cancer cells and finally can prohibit the multiplication of cancer cells.

An immunoglobulin binding peptide having the general formula, from amino terminus to carboxy terminus, of Z-R1—R2—R3—R4—R5—R6—X, is described, wherein: R1 is H or Y; R2 is a hydrophobic, preferentially aromatic, amino acid (for example W, F, Y, V); R3 is a positively charged or aromatic amino acid (for example R, H, F, W); R4 is a hydrophobic or positively charged amino acid (for example G, Y, R, K, L); R5 is a positively charged or aromatic amino acid (for example W, F, R, H, Y); R6 a random amino acid but preferably hydrophobic or negatively charged (for example V, W, L, D, H); X is present or absent and when present is a linking group; and Z is present or absent and when present is a capping group bonded to the N terminus of R1; and wherein the amino acids of said peptide are in D form, L form, or a combination thereof. Methods of using such peptides for the purification of Immunoglobulins are also described.