4-Methylumbelliferyl phosphate (disodium)

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 4-Methylumbelliferyl phosphate (disodium)
• 英文别名: disodium;(4-methyl-2-oxochromen-7-yl) phosphate
• 化学式: C10H7Na2O6P
• 分子量: 300.11
• InChiKey: WUUDJQVNZPEPKN-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  -5.68
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  98.7
• 氢给体数：
  0
• 氢受体数：
  6

文献信息

• [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.

  用PET同位素[18F]对蛋白质进行特异性标记的新方法对于在临床前和临床环境中生成高质量放射示踪剂是必需的。酶促放氟反应克服了迄今为止纯化学方法所遇到的许多限制。细菌酶硫辛酸连接酶被用于将[18F]-氟辛酸与小肽和Fab抗体片段结合。在温和水性条件下，使用少量的肽/蛋白质（1-10 nmol），标记是特异性的且高效的。标记的构建物保留了完整的抗原结合亲和力，并在小鼠血清中稳定。使用优化的反应方案，产生了足够进行人体成像的mCi数量的[18F]-Fab。
• [EN] ANTIBODIES AGAINST SEROTONIN, TRYPTOPHAN AND KYNURENINE METABOLITES AND USES THEREOF<br/>[FR] ANTICORPS DIRIGÉS CONTRE DES MÉTABOLITES DE SÉROTONINE, DE TRYPTOPHANE ET DE KYNURÉNINE ET LEURS UTILISATIONS
  申请人：NESTEC SA

  公开号：WO2016079708A1

  公开（公告）日：2016-05-26

  The present invention provides antibodies and methods for preparing antibodies to metabolites in the serotonin, tryptophan and kynurenine pathways, such as 5- hydroxyindole-3-acetic acid (5-HIAA), melatonin (MT) and kynurenic acid (KYNA). The specific metabolite antibodies have low cross-reactivity to structurally related metabolites, and are useful reagents for specific and sensitive immunoassays. The present invention also provides methods for using such antibodies to measure the levels of 5-HIAA, melatonin, or kynurenic acid in biological samples from human patients.

  本发明提供了抗体和制备抗体的方法，用于代谢物在血清素、色氨酸和酮喹酮途径中，如5-羟基吲哚-3-乙酸（5-HIAA）、褪黑激素（MT）和喹酮酸（KYNA）。特定的代谢物抗体对结构相关的代谢物具有低的交叉反应性，并且是用于特定和敏感免疫测定的有用试剂。本发明还提供了使用这些抗体来测量人类患者生物样本中5-HIAA、褪黑激素或喹酮酸水平的方法。
• [EN] COMPETITIVE IMMUNOASSAY METHODS<br/>[FR] PROCÉDÉS DE DOSAGE IMMUNOLOGIQUE PAR COMPÉTITION
  申请人：NESTEC SA

  公开号：WO2018011691A1

  公开（公告）日：2018-01-18

  The invention provides assay methods and kits for detecting, measuring or quantitating the level of 7α-hydroxy-4-cholesten-3-one (7C4) in a biological sample from a subject, such as a human subject. In some embodiments, the human subject has a condition associated with bile acid malabsorption or diarrhea of unknown origin. The invention also provides isolated antibodies or antibody fragment thereof that specifically binds to 7α- hydroxy-4-cholesten-3-one (7C4) and have less than 1% cross-reactivity to one or more members selected from the group consisting of 7-ketocholesterol, 7α-hydroxycholesterol, and trihydroxycholestanoic acid.

  本发明提供了检测、测量或定量生物样本中7α-羟基-4-胆甾烯-3-酮（7C4）水平的测定方法和试剂盒，所述生物样本来自于受试者，例如人类受试者。在某些实施方式中，人类受试者患有与胆酸吸收不良或不明原因腹泻相关的疾病。本发明还提供了特异性结合于7α-羟基-4-胆甾烯-3-酮（7C4）并且与7-酮胆固醇、7α-羟基胆固醇和三羟基胆甾酸中的一个或多个成员的交叉反应小于1％的分离抗体或抗体片段。
• 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.

  本发明提供了一种用于体外或体内标记多肽和蛋白质的组合物及其使用方法。所述方法采用硫辛酸连接酶或其突变体，以及被硫辛酸连接酶和硫辛酸连接酶突变体所识别的硫辛酸类似物。
• 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.

  新型生物素类似物，例如2-叠氮基生物素，包括天然生物素的尿素环和噻吩环，可选择性地改性，以及具有功能末端基团的改性侧链，优选从羧酸、胺、醇、硫醇、醛和卤素组成的群中选择，并且在侧链的其他位置至少有一个生物正交反应化学基团。这些类似物用于在体内或体外标记靶结构和生物分子，例如肽和蛋白质。