Buscar
Mostrando ítems 71-80 de 950
PURIFICATION AND CHARACTERIZATION OF 2 ISOAPYRASES FROM SOLANUM-TUBEROSUM VAR ULTIMUS
(PERGAMON-ELSEVIER SCIENCE LTD, 1992-11)
Two isoenzymes of ATP-diphosphohydrolase (apyrase) were extracted and purified from S. tuberosum var. Ultimus. Their hydrolytic activity ratios (ATPase/ADPase) were 1.0 (apyrase B) and ca 15.0 (apyrase A). They were ...
Characterization of hydroxymethylpyrimidine phosphate kinase from mesophilic and thermophilic bacteria and structural insights into their differential thermal stability
(Elsevier, 2020)
The hydroxymethylpyrimidine phosphate kinases (HMPPK) encoded by the thiD gene are involved in the thiamine biosynthesis pathway, can perform two consecutive phosphorylations of 4-amino-5-hydroxymethyl-2methyl pyrimidine ...
Enhanced secretion of biocontrol enzymes by Trichoderma harzianum mutant strains in the presence of Rhizoctonia solani cell walls
(PUC, 2015)
The secretion of enzymes involved in biocontrol from the wild T. harzianum strains Th11 and Th12 and the mutants Th11A80.1, Th11C40.1 and Th12A10.1 was studied after their cultivation in the presence of R. solani cell walls ...
Effect of DIMBOA, a hydroxamic acid from cereals, on peroxisomal and mitochondrial enzymes from aphids: Evidence for the presence of peroxisomes in aphids
(Kluwer Academic/Plenum Publishers, 1999)
2,4-Dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), a hydroxamic acid involved in the resistance of cereals to aphids, was administered to adult individuals of the aphid Sitobion avenae in artificial diets. Effects on ...
Nucleotide sequence of a 13-1,3-glucanase Isoenzyme II(A) gene of Oerskovia xanthineolytica LL G109 (Cellulomonas cellulans) and initial characterization of the recombinant enzyme expressed in Bacillus subtilis
(1996)
The nucleotide sequence of the βgIII(A) gene, encoding the extracellular β-1,3-glucanase II(A) (βgIII(A)) of the yeast-lytic actinomycete Oerskovia xanthineolytica LL G109, was determined. Sequence comparison shows that ...
Differential Contribution of the First Two Enzymes of the MEP Pathway to the Supply of Metabolic Precursors for Carotenoid and Chlorophyll Biosynthesis in Carrot (Daucus carota)
(Frontiers Media, 2016)
Carotenoids and chlorophylls are photosynthetic pigments synthesized in plastids from metabolic precursors provided by the methylerythritol 4-phosphate (MEP) pathway. The first two steps in the MEP pathway are catalyzed ...
Determinants of Cofactor Specificity for the Glucose-6-Phosphate Dehydrogenase from Escherichia coli: Simulation, Kinetics and Evolutionary Studies
(PUBLIC LIBRARY SCIENCE, 2016)
Glucose 6-Phosphate Dehydrogenases (G6PDHs) from different sources show varying specificities towards NAD(+) and NADP(+) as cofactors. However, it is not known to what extent structural determinants of cofactor preference ...
Identification and functional characterization of the CYP51 gene from the yeast Xanthophyllomyces dendrorhous that is involved in ergosterol biosynthesis
(BioMed Central, 2015)
Background: Xanthophyllomyces dendrorhous is a basidiomycetous yeast that synthesizes astaxanthin, a carotenoid
with great biotechnological impact. The ergosterol and carotenoid synthetic pathways derive from the ...
Unraveling the role of the tyrosine tetrad from the binding site of the epigenetic writer MLL3 in the catalytic mechanism and methylation multiplicity
(MDPI, 2022)
MLL3, also known as KMT2C, is a lysine mono-methyltransferase in charge of the writing of an epigenetic mark on lysine 4 from histone 3. The catalytic site of MLL3 is composed of four tyrosines, namely, Y44, Y69, Y128, and ...