MASS SPECTROMETRY OF DRUGS, NATURAL PRODUCTS, PROTEINS, AND OLIGONUCLEOTIDES

专业的质谱分析是 提供给研究所和其他合作单位。的 重点是区分生物活性物质的鉴定， 从天然来源中分离出的痕量有机化合物， 生物聚合物（例如肽、蛋白质和 寡核苷酸）。非常密切的工作关系， 与生物物理实验室保持合作 化学，NHLBI。虽然这个小组进行了许多例行分析， 对于NIH的实验室，尽可能多地强调 用质谱分析法进行结构解析的研究 生物活性化合物。主要项目包括： 鉴定有效的抗艾滋病毒和抗癌化合物; 蛋白质翻译后修饰的鉴定; 继续研究一种有效的抗艾滋病毒化合物氰韦林 走向临床试验;微生物技术的发展， 生物聚合物的规模LCMS，目的是大大提高 敏感性;介导脂质的Perilipin C的鉴定 唾液酸与疟疾的关系 蚊媒传播;鉴定和手性 测定发现的异常和修饰的氨基酸 海洋天然产物.修饰血红蛋白的鉴定 镰状细胞贫血症治疗过程中形成;序列 对恒河猴血红蛋白α链和β链的校正 用于镰状细胞研究的猴子;以及 磷脂鉴定方法。增加一个新 去年年底，HP-LCMS仪器大幅扩展了 团队的能力和生产力。合作继续 美国国家标准与技术研究院（NIST） 涉及有机化合物质谱的测量 来自美国国立卫生研究院，沃尔特里德陆军研究所和其他 其他企事业单位提供然后将其放入NIST/EPA/NIH 质谱数据库，这是在世界范围内使用。

Specialized mass spectrometric analyses are provided to the institute and to other collaborating units. The emphasis is split between the identification of biologically active trace organic compounds isolated from natural sources and the mass spectrometry of biopolymers (e.g. peptide, proteins and oligonucleotides). A very close working relationship and collaboration is maintained with the Laboratory of Biophysical Chemistry, NHLBI. While this group runs many routine analyses for laboratories at NIH, as much emphasis as possible is placed on research using mass spectrometry for the structural elucidation of biologically active compounds. Key projects include: the structural identification of potent anti-HIV and anti-cancer compounds; the identification of post-translational modifications in proteins; continued research on cyanovirin, a potent anti-HIV compound heading towards clinical trial; development of techniques for micro- scale LCMS of biopolymers with the aim of greatly enhancing sensitivity; the identification of Perilipin C which mediates lipid metabolism; an examination of sialic acid in relation to malaria transmission by mosquitos; the identification and chiral determination of abnormal and modified amino acids as found in marine natural products; the identification of modified hemoglobins formed during treatments for sickle cell anaemia; sequence corrections to the hemoglobin alpha- and beta-chains of the rhesus monkey used in sickle cell research; and the development of methods for phospholipid identification. The addition of a new HP-LCMS instrument late last year has drastically expanded the abilities and productivity of the group. A collaboration continues with The National Institute of Standards and Technology (NIST) involving the measurement of mass spectra of organic compounds from NIH, the Walter Reed Army Institute of Research and other government agencies. These are then put into the NIST/EPA/NIH mass spectral database which is in use world wide.