Hydroxamic Acids as Potent Inhibitors of Fe<sup>II</sup>and Mn<sup>II</sup><i>E. coli</i>Methionine Aminopeptidase: Biological Activities and X-ray Structures of Oxazole Hydroxamate-<i>Ec</i>MetAP-Mn Complexes
作者:Florian Huguet、Armelle Melet、Rodolphe Alves de Sousa、Aurélie Lieutaud、Jacqueline Chevalier、Laure Maigre、Patrick Deschamps、Alain Tomas、Nicolas Leulliot、Jean-Marie Pages、Isabelle Artaud
DOI:10.1002/cmdc.201200076
日期:2012.6
and selective inhibitors of the CoII MetAP form, with IC50 values in the micromolar range, whereas 5‐aryloxazol‐2‐ylcarboxylic acid regioisomers and 5‐aryl‐1,2,4‐oxadiazol‐3‐ylcarboxylic acids were shown to be inefficient against all forms of EcMetAP. Regardless of the heterocycle, all the hydroxamic acids are highly potent inhibitors and are selective for the MnII and FeII forms, with IC50 values between
合成了与五元杂环(包括呋喃,恶唑,1,2,4或1,3,4-恶二唑和咪唑)连接的新系列酸和异羟肟酸,并测试了它们对Fe II,Co II和Fe的抑制剂。Mn II形式的大肠杆菌蛋氨酸氨肽酶(MetAP),并且是针对野生型和acrAB大肠杆菌菌株的抗菌剂。2-芳基恶唑-4-基羧酸似乎是Co II MetAP形式的有效抑制剂和选择性抑制剂,IC 50值在微摩尔范围内,而5-芳基恶唑-2-基羧酸区域异构体和5-芳基1,2,4恶二唑-3-基羧酸对所有形式的Ec均无效MetAP。无论杂环的,所有的异羟肟酸是高度有效的抑制剂和有选择性的锰II和Fe II的形式,用IC 50个1和2之间的值μ中号。我们之前报道过的一种吲哚异羟肟酸是大肠杆菌肽去甲酰基酶的有效抑制剂,也证明了它对Ec MetAP的有效性。为了深入了解在2和5位上具有反向取代的恶唑杂环的位置,Ec的X射线晶体结构解决了与两种此类恶唑异羟肟酸复合的MetAP-Mn。不管[金属]