The development of a new class of inhibitors for betaine-homocysteine S-methyltransferase
作者:Jan Pícha、Václav Vaněk、Miloš Buděšínský、Jana Mládková、Timothy A. Garrow、Jiří Jiráček
DOI:10.1016/j.ejmech.2013.04.039
日期:2013.7
Betaine-homocysteine S-methyltransferase (BHMT) is an important zinc-dependent methyltransferase that uses betaine as the methyl donor for the remethylation of homocysteine to form methionine. In the liver, BHMT performs to half of the homocysteine remethylation. In this study, we systematically investigated the tolerance of the enzyme for modifications at the "homocysteine" part of the previously reported potent inhibitor (R,S)-5-(3-amino-3-carboxy-propylsulfanyl)-pentanoic acid (1). In the new compounds, which are S-alkylated homocysteine derivatives, we replaced the carboxylic group in the "homocysteine" part of inhibitor 1 with different isosteric moieties (tetrazole and oxadiazolone); we suppressed the carboxylic negative charge by amidations; we enhanced acidity by replacing the carboxylate with phosphonic or phosphinic acids; and we introduced pyrrolidine steric constraints. Some of these compounds display high affinity toward human BHMT and may be useful for further pharmacological studies of this enzyme. Although none of the new compounds were more potent inhibitors than the reference inhibitor 1, this study helped to completely define the structural requirements of the active site of BHMT and revealed the remarkable selectivity of the enzyme for homocysteine. (C) 2013 Elsevier Masson SAS. All rights reserved.
Baylis, E. Keith; Campbell, Colin D.; Dingwall, John G., Journal of the Chemical Society. Perkin transactions I, 1984, p. 2845 - 2853
作者:Baylis, E. Keith、Campbell, Colin D.、Dingwall, John G.
DOI:——
日期:——
Stable organophosphorus analogues of S-adenosylmethionine and S-methylmethionine
作者:Kirill V. Alferov、Yurii N. Zhukov、Elena N. Khurs、Radii M. Khomutov
DOI:10.1070/mc2003v013n06abeh001856
日期:2003.1
The organophosphorus analogues of the biologically significant sulfonium compounds S-adenosylmethionine and S-methylmethionine are much more stable than their carboxylic prototypes.
DE2722162
申请人:——
公开号:——
公开(公告)日:——
N-acyl derivatives of organophosphorus analogs of amino acids, their esters, and amides
作者:N. B. Tarusova、I. A. Gandurina、Yu. N. Zhukov、G. M. Yakovleva、R. M. Khomutov