Results 11 to 20 of about 9,938,953 (126)

Multifaceted Role of the Substrate Phosphate Group in Transketolase Catalysis

open access: yes, 2023
Phosphate plays numerous indispensable biochemical roles in all living organisms. Many enzymes act on the phosphorylated form of substrates rather than on the nonphosphorylated form. Usually, the phosphate group does not directly participate in catalysis
Tittmann, Kai   +9 more
core   +2 more sources

Cytoplasmic Lipid Membrane Biogenesis in Prokaryotes: From Soluble Lipid Building Blocks to a Dynamic and Functional Boundary Layer [PDF]

open access: yesChembiochem
Lipid membranes are fundamental to all prokaryotic life. Besides acting as barrier, by orienting as hydrophobic bilayer, lipids are involved in a wide variety of other cellular processes. As a consequence, prokaryotic membranes are dynamic entities that switch their lipid composition as required; a process that requires tight interplay with the lipid ...
Gan S, Exterkate M.
europepmc   +2 more sources

Singular Features of Trypanosomatids' Phosphotransferases Involved in Cell Energy Management [PDF]

open access: yes, 2011
Trypanosomatids are responsible for economically important veterinary affections and severe human diseases. In Africa,Trypanosoma bruceicauses sleeping sickness or African trypanosomiasis, while in America,Trypanosoma cruziis the etiological agent of ...
Pereira, Claudio Alejandro   +7 more
core   +1 more source

Mechanistic evidence for a front-side, SNi-type reaction in a retaining glycosyltransferase [PDF]

open access: yes, 2011
A previously determined crystal structure of the ternary complex of trehalose-6-phosphate synthase identified a putative transition state–like arrangement based on validoxylamine A 6?-O-phosphate and uridine diphosphate in the active site.
Errey, James C.   +11 more
core   +1 more source

Organic solar cells based on acceptor-functionalized diketopyrrolopyrrole derivatives [PDF]

open access: yes, 2015
This work was supported by the EPSRC (grants EP/E036244 and EP/I00343X).The synthesis and characterization of three solution processable diketopyrrolopyrrole (DPP) derivatives featuring acceptor units attached to the core by alkyne linker units is ...
Rotello, Vince   +6 more
core   +1 more source

Electrical rectification from aligned diodesbased on the donor-(π-bridge)-acceptor molecules [PDF]

open access: yes, 2007
As traditional devices containing silicon transistors begin to approach their physical limits, new systems composed of organic molecules are being considered for molecularscale devices of the future.
Chwialkowska, Anna
core   +4 more sources

Chemoenzymatic Radiosynthesis of a Gluconate Transporter‐Targeted In Vivo Bacterial Sensor From Clinical [18F]FDG

open access: yesAngewandte Chemie, Volume 138, Issue 41, 5 October 2026.
An efficient radiosynthesis of fluorine‐18 labeled gluconic acid ([18F]FGA) was developed using two readily available materials, 2‐deoxy‐2‐[18F]fluoro‐D‐glucose ([18F]FDG) and glucose oxidase. [18F]FGA is highly specific for bacterial gluconate metabolism mediated by gluconate permease (GntP) and gluconate kinase (GntK), with rapid clearance, low off ...
Sang Hee Lee   +7 more
wiley   +2 more sources

Structure of Mycobacterium tuberculosis phosphatidylinositol phosphate synthase reveals mechanism of substrate binding and metal catalysis [PDF]

open access: yes, 2019
Tuberculosis causes over one million yearly deaths, and drug resistance is rapidly developing. Mycobacterium tuberculosis phosphatidylinositol phosphate synthase (PgsA1) is an integral membrane enzyme involved in biosynthesis of inositol-derived ...
Bennett, Matthew D.,   +5 more
core   +1 more source

Significantly enriched third level enzyme types in essential genes.

open access: yes, 2013
Significantly enriched third enzyme types of (A) EC 6.1.1: ligases forming aminoacyl-tRNA (B) EC 2.7.7: nucleotidyltransferases (C) EC 2.7.4: phosphotransferases with a phosphate group as acceptor, in essential genes.
Feng Gao (3548)   +1 more
core   +1 more source

ADP Formation in Rat Liver

open access: yes, 1998
The enzymes that phosphorylate nucleosides fall into two groups on the basis of the phosphate donors and the reaction mechanism. One group, the nucleoside kinases, utilizes nucleoside triphosphates as donors in direct displacement reactions; the other ...
Tabucchi A.   +13 more
core   +1 more source

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