Results 91 to 100 of about 792,149 (335)

Block-based characterization of protease specificity from substrate sequence profile

BMC Bioinformatics, 2017
Background The mechanism of action of proteases has been widely studied based on substrate specificity. Prior research has been focused on the amino acids at a single amino acid site, but rarely on combinations of amino acids around the cleavage bond ...
Enfeng Qi, Dongyu Wang, Bo Gao, Yang Li, Guojun Li   +4 more
doaj   +1 more source

Structural basis for substrate specificity and catalysis of α1,6-fucosyltransferase

Nature Communications, 2020
Core-fucosylation of the N-glycan core is an essential biological modification and the α1,6- fucosyltransferase FUT8 is the only enzyme in humans that catalyses this modification through the addition of an α-1,6-linked fucose to N-glycans.
Ana García-García, Laura Ceballos-Laita, Sonia Serna, Raik Artschwager, Niels C. Reichardt, Francisco Corzana, Ramon Hurtado-Guerrero   +6 more
doaj   +1 more source

Inflammatory caspase substrate specificities

mBio
ABSTRACT Caspases are a family of cysteine proteases that act as molecular scissors to cleave substrates and regulate biological processes such as programmed cell death and inflammation. Extensive efforts have been made to identify caspase substrates and to determine factors that dictate substrate specificity ...
Patrick M. Exconde, Christopher M. Bourne, Madhura Kulkarni, Bohdana M. Discher, Cornelius Y. Taabazuing   +4 more
openaire   +3 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Substrate Specificity and Enzyme Recycling Using Chitosan Immobilized Laccase

Molecules, 2014
The immobilization of laccase (Aspergillus sp.) on chitosan by cross-linking and its application in bioconversion of phenolic compounds in batch reactors were studied.
Everton Skoronski, Mylena Fernandes, Maria de Lourdes Borba Magalhães, Gustavo Felippe da Silva, Jair Juarez João, Carlos Henrique Lemos Soares, Agenor Fúrigo Júnior   +6 more
doaj   +1 more source

Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target

FEBS Letters, EarlyView.
This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz, Milagros Siebeck Caturelli, Lina S. Lehmann, Florian Kurth, Alexander G. Maier, Kai Matuschewski   +5 more
wiley   +1 more source

Substrate and Donor Specificity of Glycosyl Transferases [PDF]

, 2018
It has been shown that all selectins recognize the carbohydrate epitopes sialyl Lewisx and sialyl Lewisa. For the establishment of the structure-activity relationship, the efficient synthesis of these tetrasaccharides and derivatives is therefore of ...
Ernst, Beat, Oehrlein, Reinhold
core  

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

A P-type ATPase importer that discriminates between essential and toxic transition metals [PDF]

, 2009
Transition metals, although being essential cofactors in many physiological processes, are toxic at elevated concentrations. Among the membrane-embedded transport proteins that maintain appropriate intracellular levels of transition metals are ATP-driven
A. T. Lee, Agranoff, Arguello, Arg  ello, Axelsen, Bal, Bull, D. C. Rees, Finney, Francis, Grass, Johnson, Krogh, Legatzki, Lewinson, Melchers, Nies, O. Lewinson, Papp-Wallace, Phung, Rensing, Schafer, Sharma, Thompson, Trenor, Vulpe   +25 more
core   +2 more sources

Substrate Specificity and Enzymatic Characteristics of Three Rutinosidases

Shipin gongye ke-ji
Quercetin, naringenin, and hesperetin are the hydrolysis products of rutinoside flavonoids, known for their multiple biological activities and potential applications.
Fengwei XIAO, Jiang SUN, Jiaying YE, Lijun LI, Hui NI   +4 more
doaj   +1 more source