Specificity and Topology of the Escherichia coli Xanthosine Permease, a Representative of the NHS Subfamily of the Major Facilitator Superfamily
收藏PubMed Central2026-05-16 收录
下载链接：
https://pmc.ncbi.nlm.nih.gov/articles/PMC99545/
下载链接
链接失效反馈官方服务：
资源简介：
The specificity of XapB permease was compared with that of the known nucleoside transporters NupG and NupC. XapB-mediated xanthosine uptake is abolished by 2,4-dinitrophenol and exhibits saturation kinetics with an apparent K(m) of 136 μM. A 12-transmembrane-segment model was confirmed by translational fusions to alkaline phosphatase and the α fragment of β-galactosidase.
提供机构：
American Society for Microbiology (ASM)
