摘要:
Die Erfindung betrifft Polypeptide der Formel I In welcher m=0 - 50, n= 0 - 100 und R den phenolischen Wasserstoff oder eine Phenolestergruppe bedeuten, X für gleiche oder verschiedene Rest natürlich vorkommender a-Aminosäuren steht, Y Val, Ile, Thr, Leu oder Phe bedeu-tet und Z für gleiche oder verschiedene Reste natürlich vorkommender α-Aminosäuren steht und in der die Cys-Reste paarweise über Disulfid-Brücken verknüpft sind, Verfahren zu deren Herstellung bzw. Gewinnung und diese enthaltende Mittel.
摘要:
L'invention concerne les produits de formule générale (I) Cys - X - Y - Dlys - Z (1), dans laquelle X représente la séquence Ala - Ala ou la séquence Glu - His, Y représente Cys ou Phe et Z représente Phe lorsque Y représente Cys ou Cys lorsque Y représente Phe, les deux radicaux Cys présents dans la molécule étant reliés par un pont disulfure, ainsi que les dérivés fonctionnels desdits produits de formule (I) et leurs complexes métalliques, leur préparation, leur application comme médicaments et les compositions pharmaceutiques les renfermant.
摘要:
Verfahren zur Herstellung von cysteinhaltigen Peptiden, wie zum Beispiel, von Insulin oder von Somatostatin, durch Abspaltung der S-Tritylgruppen mittels Trifluoressigsäure, indem man S-Tritylverbindungen dieser Peptide mit einer Mischung aus einem Mercaptan und Trifluoressigsäure behandelt.
摘要:
Novel cyclic CRF antagonist peptides are created by shortening the N-terminus of a CRF family peptide by 8 residues and adding an acyl group. CML is present in what would be the 27-position of the native CRF sequence, and a cyclizing bond is created between the side chains of the residues in positions 30 and 33. The side chain of Lys, preferably, in position 33 is linked to the side chain of Glu in position 30 by a lactam bridge. Disclosed CRF antagonists include: (cyclo 30-33)[Ac-Asp?9, D-Phe12, Nle21,38, CML27,40, Glu30, Lys33¿]r/hCRF(9-41); (cyclo 30-33) [Ac-Asp?9, D-Phe12, CML18,27, Nle21,38, Glu30, Lys33¿]r-hCRF(9-41); (cyclo 30-33)[Ac-Asp?9, D-Phe12, Nle21,38, CML27,37, Glu30, Lys33¿]r/hCRF(9-41); (cyclo 30-33)[Ac-Asp?9, D-Phe12, CML14,27, Nle21,38, Glu30, Lys33¿]r/hCRF(9-41); (cyclo 30-33)[Ac-Asp?9, D-Phe12, Nle21,38, CML27, Glu30, Lys33¿]r/hCRF(9-41); and (cyclo 30-33)[Ac-Asp?9, D-Phe12, Nle21,38, CML27,40, Glu30, Aib32, Lys33¿]r/hCRF(9-41).
摘要:
Novel cyclic CRF agonist peptides have the amino acid sequence: (cyclo 30-33)Ac-Pro-Pro-Ile-Ser-Leu-Asp-Leu-Thr-D-Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Glu-Nle-Ala-Arg-Ala-Glu-Gln-Leu-Ala-Gln-R30-Ala-R32-R33-Asn-Arg-Lys-Leu-Nle-Glu-Ile-Ile-NH2 wherein R30 is Glu or Cys; R32 is His or a D-amino acid such as D-His, D-Arg or similar; R33 is Lys, Orn or Cys. The N-terminus may be extended by Ser-Glu-Glu. Lys may be substituted for Arg23, and its side chain connected by a lactam bridge to Glu20 to form a bicyclic peptide. Certain disclosed CRF agonists include: (cyclo 30-33)[Ac-Pro?4, D-Phe12, Nle21,38, D-His32, Glu30, Lys33¿]r/hCRF(4-41), (cyclo 30-33)[Ac-Pro?4, D-Phe12, Nle21,38, D-His32, Glu30, Orn33¿]r/hCRF(4-41), (cyclo 30-33)[Ac-Pro?4, D-Phe12, Nle21,38, Cys30,33, D-His32¿]r/hCRF(4-41), (bicyclo 20-23, 30-33)[Ac-Pro¿4?, D-Phe?12, Nle21,38, Lys23,33, Glu30, D-His32¿]-r/hCRF(4-41), (cyclo 30-33)[Ac-Pro¿4?, D-Phe?12, Nle21,38, CML27, Glu30¿, imBzlD-His?32, Lys33¿]r/hCRF(4-41) and (cyclo 30-33)[Ac-Pro?4, D-Phe12, Nle21,38, Glu30, D-Arg32, Lys33¿]r/hCRF(4-41). Labelled agonists such as (cyclo 30-33)[I?125Tyr0, D-Phe12, Nle21,38, Glu30, D-His32, Lys33¿]r/hCRF and (cyclo 30-33)[I?125D-Tyr3, D-Phe12, Nle21,38, Glu30, D-His32, Lys33¿]r/hCRF(3-41) are useful in screening for more potent agonists.
摘要:
A hepatitis B vaccine containing a peptide with an amino acid chain of at least six consecutive amino acids within the pre-S gene coded region of the envelope of hepatitis B virus. The vaccine being free of an amino acid sequence corresponding to the naturally occurring envelope proteins of hepatitis B virus and a physiologically acceptable diluent. The peptide being free or linked to a carrier. The carrier being a conventional carrier or a novel carrier including a lipid vesicle stabilized by cross-linking and having covalently bonded active sites on the outer surface thereon. Such novel carrier being useful not only to link the novel peptide containing an amino acid chain with amino acids within the pre-S gene coded region of the surface antigen of hepatitis B virus, but can also be used to bind synthetic peptide analogues of other viral proteins, as well as bacterial, allergen and parasitic proteins of man and animals. The peptides of the invention can be utilized in diagnostics for the detection of antigens and antibodies.
摘要:
Analogs of CRF, which are based upon hCRF, oCRF and alpha-helical CRF, are disclosed that can be administered to achieve a substantial elevation of ACTH, β-endorphin, β-lipotropin, other products of the pro-opiomelanocortin gene and corticosterone levels. Analogs include those having the formula (see SEQ ID NO:9): Y-Ser-Xaa₂-Glu-Pro-Pro-Ile-Ser-Leu-Asp-Leu-Thr-Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Xaa₂₀-Xaa₂₁-Xaa₂₂-Xaa₂₃-Xaa₂₄-Xaa₂₅- Gln-Leu-Ala-Gln-Gln-Ala-Xaa₃₂-Ser-Asn-Arg-Lys-Leu-Xaa₃₈-Xaa₃₉-Ile-Xaa₄₁-NH₂, wherein Y is an acyl group having 7 or fewer carbon atoms or hydrogen; Xaa₂ is Glu or Gln; Xaa₂₀ is Ala or Glu; Xaa₂₁ is Met or Nle; Xaa₂₂ is Ala or Thr; Xaa₂₃ is Arg or Lys; Xaa₂₄ is D-Ala or Ala; Xaa₂₅ is Glu or Asp; Xaa₃₂ is D-His or His; Xaa₃₈ is Met, Nle or Leu; Xaa₃₉ is Ala, Glu or Asp; Xaa₄₁ is Ile or Ala; provided however that at least one of Xaa₂₀ and Xaa₃₉ is Ala and that the N-terminus may be shortened by a sequence of up to about 5 residues. One example is [Ala²⁰]-oCRF. These analogs or their pharmaceutically acceptable salts, dispersed in an acceptable liquid or solid carrier, can be administered to humans.