0000000000323618
AUTHOR
Sabir Hussain
Efficient, non-toxic anion transport by synthetic carriers in cells and epithelia.
Transmembrane anion transporters (anionophores) have potential for new modes of biological activity, including therapeutic applications. In particular they might replace the activity of defective anion channels in conditions such as cystic fibrosis. However, data on the biological effects of anionophores are scarce, and it remains uncertain whether such molecules are fundamentally toxic. Here, we report a biological study of an extensive series of powerful anion carriers. Fifteen anionophores were assayed in single cells by monitoring anion transport in real time through fluorescence emission from halide-sensitive yellow fluorescent protein. A bis-(p-nitrophenyl)ureidodecalin shows especial…
Isoproturon
Frequent use of phenylurea herbicide isoproturon (IPU) in agricultural fields has resulted not only in the contamination of the natural resources including soil and water but also in the adaptation of the soil microflora to its rapid degradation. However, up to now, the mechanisms underlying this microbial adaptation are not well elucidated. The aim of this study was to explore the processes and factors implicated in IPU degradation from the agricultural field to the genes coding for catabolic genes. The study carried out at the experimental field of Epoisses cropped with a winter wheat / barley / rape seed crop rotation indicated that as a result of its periodically repeated use, the soil …
Genomic approach to search for IPU degrading gene: catA as a possible gene target responsible for 4- isopropyl aniline degradation
Affiche, résumé étendu; Genomic approach to search for IPU degrading gene: catA as a possible gene target responsible for 4- isopropyl aniline degradation
Characterization of an isoproturon mineralizing bacterial culture enriched from a French agricultural soil.
The phenylurea herbicide isoproturon, 3-(4-isopropylphenyl)-1,1-dimethylurea (IPU), was found to be rapidly mineralized by a bacterial culture isolated from an agricultural soil regularly exposed to IPU. Molecular analysis of the bacterial culture by DNA fingerprinting, cloning and sequencing of the 16S rRNA genes revealed that it consisted of six different members among whom the dominant was related to Sphingomonas sp. Six bacterial strains belonging to genera Ancylobacter, Pseudomonas, Stenotrophomonas, Methylobacterium, Variovorax and Agrobacterium were isolated from the IPU-degrading culture. None of these were able to degrade IPU in pure culture and only the intact culture sustained th…
Genomics based approach to identify the genes involved in ipu mineralization in sphingomonas sp.sh
Phenylurea herbicide isoproturon, 3-(4-isopropylphenyl)-1,1-dimethylurea (IPU), was found to be rapidly mineralised in aFrench agricultural soil previously exposed to IPU. A bacterial strain able to metabolise IPU was isolated from this soil adapted toIPU mineralization.
CCDC 1420195: Experimental Crystal Structure Determination
Related Article: Hongyu Li, Hennie Valkenier, Luke W. Judd, Peter R. Brotherhood, Sabir Hussain, James A. Cooper, Ondřej Jurček, Hazel A. Sparkes, David N. Sheppard, Anthony P. Davis|2016|Nature Chemistry|8|24|doi:10.1038/nchem.2384