Characterization of a novel non-haem-containing extracellular peroxidase from Thermomonospora fusca

Extracellular Heme Peroxidases in Actinomycetes: a Case of Mistaken Identity

“…Since the discovery of extracellular lignindegrading heme peroxidases of wood-rotting fungi, considerable effort has been expended in searching for analogous enzymes in the cellulolytic actinomycetes (9,22,24). Indeed, some proteins secreted by the actinomycetes Streptomyces thermoviolaceus (17), Streptomyces viridosporus T7A (6,26,27), and Thermomonospora fusca BD25 (recently reclassified as Thermobifida fusca [35]) (3,28) have low peroxidase activity and have been isolated and partially characterized. The peroxidase-like proteins from S. thermoviolaceus and S. viridosporus T7A were assigned as heme peroxidases on the basis of their optical spectra.…”

Production and partial characterization of extracellular peroxidase produced byStreptomyces sp. F6616 isolated in Turkey

“…However a number of intracellular lignin peroxidases have been characterized that do not contain heme, for example intracellular lignin peroxidases from Ascophilum nodosum (De Boer et al, 1986), Streptomyces aureofaciens (Krenn et al, 1988), Pseudomonas pyrocina (Wiesner et al, 1986), Corallina officinalis (Yu and Whittaker, 1989) and Serratia mercescens (Burd et al, 1995). Although lignin peroxidases are primarily found intracellularly (Maliki and Zimmermann, 1992) in almost all organisms examined (Ball and Trigo, 1995), extracellular lignin peroxidases are less widespread with the exception of fungi such as Phanerochaete chrysosporium and Pleurotus eryngii (Orth et al, 1993;Vazquez-Duhalt et al, 1995;Martinez, 2002). Another group of organisms in which extracellular peroxidases have been identified are actinobacteria (Ball and Trigo, 1995;Mercer et al, 1996;Rob et al, 1996;Kang et al, 1999;Tuncer et al, 2004).…”

“…Although lignin peroxidases are primarily found intracellularly (Maliki and Zimmermann, 1992) in almost all organisms examined (Ball and Trigo, 1995), extracellular lignin peroxidases are less widespread with the exception of fungi such as Phanerochaete chrysosporium and Pleurotus eryngii (Orth et al, 1993;Vazquez-Duhalt et al, 1995;Martinez, 2002). Another group of organisms in which extracellular peroxidases have been identified are actinobacteria (Ball and Trigo, 1995;Mercer et al, 1996;Rob et al, 1996;Kang et al, 1999;Tuncer et al, 2004). Degradation of lignin and lignin-degrading enzymes has also been reported for actinobacteria, mainly from the Thermomonospora fusca BD25 (Trigo and Ball, 1994;Ball and Trigo, 1995;Rob et al, 1996), Streptomyces avermitilis UAH30 (Rob et al, 1997), Streptomyces albus ATCC 3005 (Antonopoluos et al, 2001), Streptomyces sp.…”

“…Another group of organisms in which extracellular peroxidases have been identified are actinobacteria (Ball and Trigo, 1995;Mercer et al, 1996;Rob et al, 1996;Kang et al, 1999;Tuncer et al, 2004). Degradation of lignin and lignin-degrading enzymes has also been reported for actinobacteria, mainly from the Thermomonospora fusca BD25 (Trigo and Ball, 1994;Ball and Trigo, 1995;Rob et al, 1996), Streptomyces avermitilis UAH30 (Rob et al, 1997), Streptomyces albus ATCC 3005 (Antonopoluos et al, 2001), Streptomyces sp. UAH47 (Hernandez et al, 2001), and Streptomyces sp.…”

Ανίχνευση, χαρακτηρισμός και συγκριτική μελέτη των υπεροξειδασών στα ωοθυλάκια των εντόμων Drosophila melanogaster, Dacus oleae, Ceratitis capitata: συσχέτιση με άλλες υπεροξειδάσες

“…Μια εξωκυττάρια υπεροξειδάση, η οποία δεν περιέχει αίμη και εμπλέκεται στην αποικοδόμηση της λιγνοκυτταρίνης, ανιχνεύθηκε πρόσφατα στο θερμόφιλο ακτινομύκητα Thermomonosporafusca (Ball A.S. & Trigo, C, 1994).…”