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New mononuclear copper(II) complex based on a salen derivative ligand with an unusual coordination and its catecholase activity
(Elsevier BVAmsterdam, 2013-11)
The new mononuclear copper(II) complex [CuII(H2LDA)(ClO4)](ClO4) (1) ([H2LDA = N,N′-[bis-(2-hydroxy-3- formyl-5-methylbenzyl)(dimethyl)]-ethylenediamine])with an unusual coordination mode of a salen derivative ligand is ...
Catecholase and DNase activities of copper(II) complexes containing phenolate-type ligands
(JOHN WILEY & SONS LTD, 2010)
Three new homodinuclear complexes containing substituted phenolate-type ligands based on the N(5)O(2) donor (2-(N,N-Bis(2-pyridylmethyl)aminomethyl)-6-(N`,N`-(2-hydroxybenzyl)(2-pyridylmethyl))aminomethyl)-4-methylphenol ...
Differential tissue distribution and specificity of phenoloxidases from the Pacific oyster Crassostrea gigas
Phenoloxidases (POs) play a key role in melanin production, are involved in invertebrate immune
mechanisms, and have been detected in different bivalves. Recently, we identified catecholase- and
laccase-like PO activities ...
Cresolase, catecholase and laccase activities in haemocytes of the red swamp crayfish
(FISH & SHELLFISH IMMUNOLOGY, 2009)
Synthesis, characterization and catecholase biomimetic activity of novel cobalt(II), copper(II), and iron(II) complexes bearing phenylene-bisbenzimidazole ligand
(Cartagena de Indias, 2021-04-24)
Transition metal complexes of Co(II), Cu(II), and Fe(II) bearing a rigid symmetrical 2,20
-(1,2-phenylene)bis
(1H-benzimidazole) ligand, PhBIm2, were synthesized and fully characterized by ESI-MS, FT-IR, 1
H NMR
(for ...
First evidence of a potential antibacterial activity involving a laccase-type enzyme of the phenoloxidase system in Pacific oyster Crassostrea gigas haemocytes
Phenoloxidases (POs) are a group of copper proteins including tyrosinase, catecholase and laccase. In
several insects and crustaceans, antibacterial substances are produced through the PO cascade, participating in the ...
Characterization and changes in polyphenol oxidase from eggplant fruit (Solanum melongena L.) during storage at low temperature
(Elsevier, 2004-11)
Polyphenoloxidase (PPO) from eggplant fruit was characterized, and its catecholase activity studied during storage of fruit at 0 and 10ºC. The high catecholase activity was observed using 4-methylcatechol as substrate at ...
Síntese, caracterização e estudos cinéticos de novos complexos mononucleares de cobre(II): modelos para hidrolase e catecolase
(2019)
A química bioinorgânica investiga a presença e o entendimento de espécies metálicas em sistemas biológicos, bem como busca a síntese de complexos metálicos inspirados nestes sistemas, desenvolvendo os chamados compostos ...
Melanin as a virulence factor of Paracoccidioides brasiliensis and other dimorphic pathogenic fungi: a minireview
(SPRINGER, 2008)
Melanin pigments are substances produced by a broad variety of pathogenic microorganisms, including bacteria, fungi, and helminths. Microbes predominantly produce melanin pigment via tyrosinases, laccases, catecholases, ...
Isolation and characterization of latent and active polyphenoloxidase in BRS Clara (CNPUV 154-147 x Centennial seedless) and BRS Morena (Marroo seedless x Centennial seedless) seedless table grapes
(Elsevier France-editions Scientifiques Medicales Elsevier, 2011-11-01)
The seedless grapes BRS Clara and BRS Morena, developed in Brazil, are currently growing in popularity due to their premium texture and taste. However, there are no reports on the polyphenoloxidase (PPO) from these cultivars. ...