摘要:
Compounds of the following formula are disclosed, wherein R1 is a peptide and R2 is an amino acid or peptide as disclosed herein: The compounds are inhibitors of activated protein C.
摘要:
The present invention provides novel polypeptides comprising heat shock protein 20 (HSP20)-derived polypeptides to treat or inhibit smooth muscle vasospasm, as well to treat and inhibit smooth muscle cell proliferation and migration.
摘要:
The present invention provides novel procedures to assay the activity of protein mannosyl transferases ability to catalyze the transfer of mannose from the donor sugar lipid dolichyl phosphoryl mannose to the acceptor peptide and agents or compounds that inhibit the activity of protein mannosyl transferases.
摘要:
A peptide of the formula (I) (wherein each symbol is as defined in the description.) or an acid addition salt thereof. A compound of the formula (I) is a specific substrate for human pepsin II, so it can be used for assaying human pepsin II or human pepsinogen II and it is useful for diagnosis of gastric diseases such as gastric cancer and gastric ulcer.
摘要:
Arginine mimetic peptides according to Formula I of this application have a stimulating effect on bone formation and are useful for the treatment of bone metabolic disorders.
摘要:
The present invention provides novel compounds comprising peptide sequences which mimic the conserved amino acid motif LDTSL of MAdCAM-1 and which have groups bonded to the N- and C-termini. Also provided are methods of inhibiting the interaction of a cell bearing a ligand of MAdCAM-1, such as human null4null7, with MAdCAM-1 or a portion thereof (e.g., the extracellular domain), comprising contacting the cell with a compound of the present invention.
摘要:
The invention relates to compounds of formula (I) or (II), which are of interest especially for inhibition of polymerization of amyloid null peptide, as model substances for synthesis of amyloid null peptide-ligands, as tools for the identification of other organic compounds with similar functional properties and/or as ligands for detection of amyloid deposits using e.g., positron emission tomography (PET). Formula (II) is: R1-Anull-Ynull-Leu-Xnull-Znull-Bnull-R2 in which Xnull means any group or amino acid imparting to the compound according to formula (I) the ability to bind to the KLVFF-sequence in amyloid null peptide, or two amino acids imparting the same ability, but with the proviso that one is not proline; Ynull means any amino acid; Znull means any non-acidic amino acid; Anull means a direct bond or an null-amino acid bonded at the carboxyl terminal of the null-carboxy group or a di-, tri-, tetra- or pentapeptide bonded at the carboxyl terminal of the null-carboxy group; Bnull means a direct bond or an null-amino acid bonded at the null-nitrogen or a di-, tri-, tetra- or pentapeptide bonded at the null-nitrogen of the N-terminal null-amino acid; R1 is H or nullCOnullR3 bonded at the null-amino group of Anull; R2 is H, nullOR4 or NR5R6, all bonded to the null-carboxyl group of the null-carboxyterminal of Bnull; R3 and R4 are straight or branched carbon chain of 1-4 carbon atoms; R5 and R6 are independently H, alkyl, cycloalkyl, aryl or substituted aryl or together are null(CH2)nnull where n is 4-5; and R1 and R2 together can form a hydrocarbon ring or heterocyclic ring; all null-amino acids being either D- or L-isomers.
摘要:
The invention provides ligands for melanocortin receptors. For example, the invention provides the melanocortin receptor peptide ligand Ac-Nlc-Gln-His-(p(I)-D-Phe)-Arg-(D-Trp)-Cly-NH2, (SEQ ID NO: 1), where the iodo group is unlabeled or radioactively labeled. The invention additionally provides methods of assaying for melanocortin receptors in a cell or tissue such as brain. The invention also relates to pharmaceutical compositions comprising a pharmaceutically acceptable carrier and a melanocortin receptor ligand and to methods of administering the pharmaceutical composition to a subject. The invention further provides tetrapeptide ligands for melanocortin receptors and methods of altering melanocortin receptor activity.
摘要翻译:本发明提供黑皮质素受体的配体。 例如,本发明提供黑皮质素受体肽配体Ac-Nlc-Gln-His-(p(I)-D-Phe)-Arg-(D-Trp)-Cly-NH 2,(SEQ ID NO:1) 其中碘基团未标记或放射性标记。 本发明另外提供了测定细胞或组织如脑中黑皮质素受体的方法。 本发明还涉及包含药学上可接受的载体和黑皮质素受体配体的药物组合物以及向受试者施用该药物组合物的方法。 本发明还提供了黑皮质素受体的四肽配体和改变黑皮质素受体活性的方法。
摘要:
The object is to provide a promoting agent for bone formation, a therapeutic method for bone formation and a process for preparing a promoting agent for bone formation. A promoting agent for bone formation which comprises at least one of kistrin, echstatin, a peptide or polypeptide containing the amino acid sequence ArgGlyAsp in the molecule such as a peptide represented by Gly-Arg-Gly-Asp-Ser or a compound represented by the following general formula (IX) and so on, as well as a biologically acceptable salt thereof wherein R16 represents —N(R20)2 (R20 represents a hydrogen atom or a C1-C4 alkyl group), R17 represents a hydrogen atom or a C1-C4 alkyl group, R18 represents a hydrogen atom, a C1-C4 alkyl group and so on, R19 represents OH, NH2 and so on, Y represents —NH—, —O— or a direct bond, a represents 1-3, b represents 1 or 2, c represents 0 or 1 and d represents 0 or 1.
摘要:
The invention relates to compounds of formula (I) or (II), which are of interest especially for inhibition of polymerization of amyloid &bgr; peptide, as model substances for synthesis of amyloid &bgr; peptide-ligands, as tools for the identification of other organic compounds with similar functional properties and/or as ligands for detection of amyloid deposits using e.g., positron emission tomography (PET). Formula (II) is: R1—A′—Y′—Leu—X′—Z′—B′—R2 in which X′ means any group or amino acid imparting to the compound according to formula (I) the ability to bind to the KLVFF-sequence in amyloid &bgr; peptide, or two amino acids imparting the same ability, but with the proviso that one is not proline; Y′ means any amino acid; Z′ means any non-acidic amino acid; A′ means a direct bond or an &agr;-amino acid bonded at the carboxyl terminal of the &agr;-carboxy group or a di-, tri-, tetra- or pentapeptide bonded at the carboxyl terminal of the &agr;-carboxy group; B′ means a direct bond or an &agr;-amino acid bonded at the &agr;-nitrogen or a di-, tri-, tetra- or pentapeptide bonded at the &agr;-nitrogen of the N-terminal &agr;-amino acid; R1 is H or —CO—R3 bonded at the &agr;-amino group of A′; R2 is H, —OR4 or NR5R6, all bonded to the &agr;-carboxyl group of the &agr;-carboxyterminal of B′; R3 and R4 are straight or branched carbon chain of 1-4 carbon atoms; R5 and R6 are independently H, alkyl, cycloalkyl, aryl or substituted aryl or together are —(CH2)n— where n is 4-5; and R1 and R2 together can form a hydrocarbon ring of heterocyclic ring; all &agr;-amino acids being either D- or L-isomers.