The interactions of gallium with various buffers and chelating agents in aqueous solution: Gallium-71 and hydrogen-1 NMR studies

C.H.Francis Chang, T.Phil Pitner , Robert E. Lenkinski, Jerry D. Glickson
{"title":"The interactions of gallium with various buffers and chelating agents in aqueous solution: Gallium-71 and hydrogen-1 NMR studies","authors":"C.H.Francis Chang,&nbsp;T.Phil Pitner ,&nbsp;Robert E. Lenkinski,&nbsp;Jerry D. Glickson","doi":"10.1016/S0006-3061(00)80001-0","DOIUrl":null,"url":null,"abstract":"<div><p>The interactions of gallium (Ga) with the ligands, EDTA, NTA, phosphate, lactate, MOPS, TRIS and HEPES are investigated using both <sup>71</sup>Ga and <sup>1</sup>H nmr measurements. Both EDTA and NTA form strong complexes with gallium, which have a 1:1 stoichiometry. In alkaline solution the tetrahedral Ga(OD)<sub>4</sub><sup>—</sup> competes strongly with EDTA in complex formation. In the lactate complex, there are probably three lactates per gallium present. The phosphate complexes of gallium are difficult to characterize on the basis of this investigation. The buffers, MOPS, TRIS, and HEPES, do not interact with gallium significantly. The ability of the ligands to bind gallium correlates well with their ability to inhibit gallium incorporation by L1210 leukemic cells.</p></div>","PeriodicalId":9177,"journal":{"name":"Bioinorganic chemistry","volume":"8 1","pages":"Pages 11-19"},"PeriodicalIF":0.0000,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0006-3061(00)80001-0","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioinorganic chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0006306100800010","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 12

Abstract

The interactions of gallium (Ga) with the ligands, EDTA, NTA, phosphate, lactate, MOPS, TRIS and HEPES are investigated using both 71Ga and 1H nmr measurements. Both EDTA and NTA form strong complexes with gallium, which have a 1:1 stoichiometry. In alkaline solution the tetrahedral Ga(OD)4 competes strongly with EDTA in complex formation. In the lactate complex, there are probably three lactates per gallium present. The phosphate complexes of gallium are difficult to characterize on the basis of this investigation. The buffers, MOPS, TRIS, and HEPES, do not interact with gallium significantly. The ability of the ligands to bind gallium correlates well with their ability to inhibit gallium incorporation by L1210 leukemic cells.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
水溶液中镓与各种缓冲液和螯合剂的相互作用:镓-71和氢-1核磁共振研究
利用71Ga和1H nmr测量研究了镓(Ga)与配体EDTA、NTA、磷酸盐、乳酸盐、MOPS、TRIS和HEPES的相互作用。EDTA和NTA都与镓形成强配合物,其化学计量比为1:1。在碱性溶液中,四面体Ga(OD)4 -与EDTA在络合物中形成强烈的竞争。在乳酸复合体中,每个镓可能有三个乳酸。在此基础上,镓的磷酸盐配合物难以表征。缓冲液,MOPS, TRIS和HEPES,与镓没有明显的相互作用。这些配体结合镓的能力与它们抑制L1210白血病细胞结合镓的能力密切相关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Chapter III. Complexes containing carbon monoxide: synthesis, reactivity, structure, bonding and therapeutic aspects of carbon monoxide–releasing molecules (CORMs) in human beings and plants Frontmatter Chapter IV Advantageous role of gaseous signalling molecule, H2S: hydrogen sulphide and their respective donors, in ophthalmic diseases and physiological implications in plants Chapter I. Coordination chemistry of chlorophylls/ bacteriochlorophylls and its functional aspects in photosynthesis Index
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1