[EN] SITE-SPECIFIC RADIOFLUORINATION OF PEPTIDES WITH 8-[18F]-FLUOROOCTANOIC ACID CATALYZED BY LIPOIC ACID LIGASE<br/>[FR] RADIOFLUORATION SPÉCIFIQUE DE SITE DE PEPTIDES AVEC DE L'ACIDE 8-[18F]FLUOROOCTANOÏQUE CATALYSÉE PAR UNE ACIDE LIPOÏQUE LIGASE
申请人:UNIV CALIFORNIA
公开号:WO2017095806A1
公开(公告)日:2017-06-08
New methodologies for site-specifically radiolabeling proteins with the PET isotope [18F] are required to generate high quality radiotracers for imaging in both the preclinical and clinical settings. The enzymatic radiofluorination overcomes many of the limitations encountered to date with purely chemical approaches. The bacterial enzyme lipoic acid ligase was used to conjugate [18F]-fluorooctanoic acid to both a small peptide and a Fab antibody fragment. Labeling was site-specific and highly efficient under mild aqueous conditions using small amounts of peptide/protein (1-10 nmol). The labeled construct retained full epitope binding affinity and was stable in mouse serum. Using an optimized reaction scheme, mCi quantities of [18F]-Fab were generated, an amount sufficient for human imaging.
[EN] SELECTIVE SEPRASE INHIBITORS<br/>[FR] INHIBITEURS SÉLECTIFS DE LA SÉPRASE
申请人:MOLECULAR INSIGHT PHARM INC
公开号:WO2010036814A1
公开(公告)日:2010-04-01
Novel radiopharmaceuticals that are useful in diagnostic imaging and therapeutic treatment of disease characterized by overexpression of seprase include complexes that contains a proline moiety and a radionuclide adapted for radioimaging and/or radiotherapy (Formulae I & II).
Methods and compositions for protein labeling using lipoic acid ligases
申请人:Ting Alice Y.
公开号:US20090149631A1
公开(公告)日:2009-06-11
The invention provides compositions and methods of use thereof for labeling peptide and proteins in vitro or in vivo. The methods described herein employ lipoic acid ligase or mutants thereof, and lipoic acid analogs recognized by lipoic acid ligase and lipoic acid ligase mutants.
Fibroblast Activation Protein Inhibitor Compounds and Methods
申请人:Cohen Frederick
公开号:US20080280856A1
公开(公告)日:2008-11-13
Amino terminus-blocked peptide boronate compounds of Formulas I and II are useful for inhibiting Fibroblast Activation Protein (FAP) and other proteases, and for treating disorders mediated by FAP. Methods of using the amino terminus blocked peptide boronate compounds, and stereoisomers, tautomers, solvates and pharmaceutically acceptable salts thereof, for in vitro, in situ, and in vivo diagnosis, prevention or treatment of such disorders in mammalian cells, or associated pathological conditions are disclosed.
Biomolecular Labelling Using Multifunctional Biotin Analogues
申请人:Thomas Neil R.
公开号:US20120083599A1
公开(公告)日:2012-04-05
Novel biotin analogues, such as 2-Azidobiotin, comprising the ureido ring of natural biotin with the thiophene ring, optionally modified, and a modified sidechain having a functional end group, preferably selected from the group consisting of a carboxylic acid, amine, alcohol, thiol, aldehyde and a halide, and at least one bio-orthogonally reactive chemical group located elsewhere in the sidechain. The analogues are used for labelling target structures and biomolecules, such as peptides and proteins in vitro or in vivo.