Binding Protein-Dependent Uptake of Maltose into Cells via an ATP-Binding Cassette Transporter
نویسندگان
چکیده
منابع مشابه
The role of ATP-binding cassette transporter A2 in childhood acute lymphoblastic leukemia multidrug resistance
Acute lymphoblastic leukemia (ALL) is one of the most prevalent hematologic malignancies in children. Although the cure rate of ALL has improved over the past decades, the most important reason for ALL treatment failure is multidrug resistance (MDR) phenomenon. The current study aims to explain the mechanisms involved in multidrug resistance of childhood ALL, and introduces ATP-binding cassette...
متن کاملDynamics of alpha-helical subdomain rotation in the intact maltose ATP-binding cassette transporter.
ATP-binding cassette (ABC) transporters are powered by a nucleotide-binding domain dimer that opens and closes during cycles of ATP hydrolysis. These domains consist of a RecA-like subdomain and an α-helical subdomain that is specific to the family. Many studies on isolated domains suggest that the helical subdomain rotates toward the RecA-like subdomain in response to ATP binding, moving the f...
متن کاملBoth maltose-binding protein and ATP are required for nucleotide-binding domain closure in the intact maltose ABC transporter.
The maltose transporter MalFGK(2) of Escherichia coli is a member of the ATP-binding cassette superfamily. A periplasmic maltose-binding protein (MBP) delivers maltose to MalFGK(2) and stimulates its ATPase activity. Site-directed spin labeling EPR spectroscopy was used to study the opening and closing of the nucleotide-binding interface of MalFGK(2) during the catalytic cycle. In the intact tr...
متن کاملTrapping the transition state of an ATP-binding cassette transporter: evidence for a concerted mechanism of maltose transport.
High-affinity uptake into bacterial cells is mediated by a large class of periplasmic binding protein-dependent transport systems, members of the ATP-binding cassette superfamily. In the maltose transport system of Escherichia coli, the periplasmic maltose-binding protein binds its substrate maltose with high affinity and, in addition, stimulates the ATPase activity of the membrane-associated t...
متن کاملFunctional analysis of ATP-binding cassette transporter of Streptomyces coelicolor
Article history: Received on: 04/02/2014 Revised on: 28/02/2014 Accepted on: 12/03/2014 Available online: 28/07/2014 ATPbinding cassette (ABC) transporters are characterized as multi drug resistant transporters utilizing ATP hydrolysis. The SCO5113 (GeneID: 1100554) encoding a multidrug resistance ABC transporter in Streptomyces coelicolor was expressed in E.coli BL21 (DE3) plysS, using pET 21 ...
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ژورنال
عنوان ژورنال: EcoSal Plus
سال: 2010
ISSN: 2324-6200
DOI: 10.1128/ecosalplus.3.3.3