Results 51 to 60 of about 217,358 (308)
Dihydrofolate reductase (DHFR) enzyme is a crucial component of cell growth and proliferation in the human body, making it an important target for treating cancer diseases.
Zanib Qayyum +2 more
doaj +1 more source
Trypanosoma brucei DHRF-TS revisited:characterisation of a bifunctional and highly unstable recombinant dihydrofolate reductase-thymidylate synthase [PDF]
Bifunctional dihydrofolate reductase–thymidylate synthase (DHFR-TS) is a chemically and genetically validated target in African trypanosomes, causative agents of sleeping sickness in humans and nagana in cattle.
A Dawson +63 more
core +3 more sources
Tales of Dihydrofolate Binding to R67 Dihydrofolate Reductase
Homotetrameric R67 dihydrofolate reductase possesses 222 symmetry and a single active site pore. This situation results in a promiscuous binding site that accommodates either the substrate, dihydrofolate (DHF), or the cofactor, NADPH. NADPH interacts more directly with the protein as it is larger than the substrate.
Duff, Michael R. +4 more
openaire +2 more sources
Despite significant efforts in developing novel biomaterials to regenerate tissue, only a few of them have successfully reached clinical use. It has become clear that the next generation of biomaterials must be multifunctional. Smart biomaterials can respond to environmental or external stimuli, interact in a spatial‐temporal manner, and trigger ...
Sonya Ghanavati +12 more
wiley +1 more source
Import of honeybee prepromelittin into the endoplasmic reticulum [PDF]
Honeybee prepromelittin is correctly processed and imported by dog pancreas microsomes. Insertion of prepromelittin into microsomal membranes, as assayed by signal sequence removal, does not depend on signal recognition particle (SRP) and docking protein.
Müller, Günter, Zimmermann, Richard
core +2 more sources
Polimorfismo de deleção de 19 pares de bases do gene dihidrofolato redutase (DHFR): risco materno para síndrome de Down e metabolismo do folato [PDF]
CONTEXT AND OBJECTIVE: Polymorphisms in genes involved in folate metabolism may modulate the maternal risk of Down syndrome (DS). This study evaluated the influence of a 19-base pair (bp) deletion polymorphism in intron-1 of the dihydrofolate reductase ...
BISELLI, Joice Matos +9 more
core +1 more source
Affinity chromatography of dihydrofolate reductase [PDF]
1. Dihydrofolate reductase was purified from Lactobacillus casei MTX/R, and studied on affinity columns containing folic acid and methotrexate. Two forms of the enzyme were interconverted by incubation with substrates. 2. Affinity columns were prepared from agarose activated with cyanogen bromide and coupled with 1,6-diaminohexane.
P C, Newbold, N G, Harding
openaire +2 more sources
Evolution Alters the Enzymatic Reaction Coordinate of Dihydrofolate Reductase
How evolution has affected enzyme function is a topic of great interest in the field of biophysical chemistry. Evolutionary changes from Escherichia coli dihydrofolate reductase (ecDHFR) to human dihydrofolate reductase (hsDHFR) have resulted in ...
J. E. Masterson, S. Schwartz
semanticscholar +1 more source
Export of honeybee prepromelittin in Escherichia coli depends on the membrane potential but does not depend on proteins secA and secY [PDF]
Honeybee prepromelittin (70 amino acid residues), the precursor of an eukaryotic secretory protein, and a hybrid protein between prepromelittin and mouse dihydrofolate reductase (257 amino acid residues) were expressed in Escherichia coli and ...
Cobet, Werner W. E. +3 more
core
Background: PAS is an antimycobacterial whose mechanism(s) of action remains elusive. Results: PAS is incorporated into the folate pathway by DHPS-DHFS, generating an anti-metabolite. DHFS and RibD are associated with PAS resistance. Conclusion: Hydroxyl
Jun Zheng +11 more
semanticscholar +1 more source

