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The peroxyl radical-induced oxidation of Escherichia coli FtsZ and its single tryptophan mutant (Y222W) modifies specific side-chains, generates protein cross-links and affects biological function

Escobar-Álvarez, Elizabeth; Leinisch, Fabian; Araya, Gissela; Monasterio Opazo, Octavio; Lorentzen, Lasse G.; Silva, Eduardo; Davies, Michael J.; López Alarcón, Camilo (Elsevier Inc., 2017)

© 2017 Elsevier Inc. FtsZ (filamenting temperature-sensitive mutant Z) is a key protein in bacteria cell division. The wild-type Escherichia coli FtsZ sequence (FtsZwt) contains three tyrosine (Tyr, Y) and sixteen methionine ...

Purification and characterization of two isoapyrases from Solanum tuberosum var. ultimus

Kettlun, Ana María; Urra, Raúl; Leyton, Mario; Valenzuela, M.Antonieta; Mancilla, Marta; Traverso Cori, A. (1992)

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 ...

ATPASE-ADPASE ACTIVITIES OF RAT PLACENTAL TISSUE

Pieber, M.; Valenzuela Pedevila, María Antonieta; Kettlun, Ana María; Mancilla, Marta; Aranda, E.; Collados, L. E.; Traverso Cori, A. (PERGAMON-ELSEVIER SCIENCE LTD, 1991)

1. Calcium-stimulated ATPase-ADPase activities were studied in a microsomal fraction of rat placental tissue. 2. The kinetic characteristics correspond to those of ATP-diphosphohydrolase, also known as apyrase (E.C. ...

Inoculação de bactérias produtoras de ácido 3-indol acético em plantas de alface (Lactuca sativa L.)

Florentino, Ligiane Aparecida; Bortolotti da Silva, Adriano; Corrêa Landgraf, Paulo Roberto; Costa Souza, Flávia Roman da (Universidad Pedagógica y Tecnológica de Colombia, 2017-06-13)

Os microrganismos exercem grande importância para o desenvolvimento dos vegetais por meio da produção de diversos compostos, como o ácido 3-indol acético (AIA), sintetizado por bactérias. No entanto, ainda são incipientes ...