Key points .................................................................................................................. 559 H

Although cytochrome b-559 has long been known as a membrane-bound redox component closely linked to the reaction center of the oxygen-generating photosystem (PSII), its role in photosynthesis has remained obscure. This paper reports evidence and outlines a hypothesis in support of a "b-559 cycle"-i.e., a light-induced, cytochrome b-559-dependent, cyclic electron transport pathway around PSII th...

2 University of Nebraska Medical Center 9 Department of Cellular and Integrative Physiology 10 985850 Nebraska Medical Center 11 Omaha, NE 68198-5850 12 13 Corresponding Author: Han-Jun Wang, M.D. 14 984455 Nebraska Medical Center 15 Omaha, NE 68198-4455 16 [email protected] 17 Phone: 402-559-2493 18 Fax: 402-559-4438 19 20 Articles in PresS. Am J Physiol Heart Circ Physiol (August 19, 2017)....

Background: Activation loop Y807F or juxtamembrane domain Y559F mutations compromise CSF-1 receptor-mediated macrophage proliferation. Results: Tyr-559 suppresses constitutive proliferative activity of Tyr-807; ligand-induced Tyr559 phosphorylation relieves this inhibition and activates pathways. Conclusion: Tyr-807 drives proliferation. Tyr-559 confers ligand dependence. Significance: How indi...

Cytochrome b-559, an integral protein of diloroplast thylakoids, was prepared in a homogeneous form from the alga Bum illeriopsis filiform is. The protein is easily denatured and can be solubilized by treatment of isolated thylakoids with high concentrations of urea and detergents in addition to weak sonification. The reduced form exhibits absorption maxima at 559, 530 and 429 nm. By comparativ...

INTRODUCTION ................................................................................... 532 I. OVERVIEW OF SMART GRID DEVELOPMENT ....................... 533 II. WHY NUSP-CONSUMER INTERACTIONS SHOULD BE REGULATED .............................................................................. 534 A. What are NUSPs and How Do They Interact with Consumers? ....................................

A haemoprotein was purified to apparent homogeneity from Bengal-gram seeds. The purified protein exhibited an absorption maximum at 412 nm (Soret band) that upon reduction with dithionite gave rise to a shift in the Soret band to 426 nm with concomitant appearance of an alpha-band at 559 nm and a beta-band at 530 nm. In the reduced state the Bengal-gram haemoprotein showed reactivity towards CO...

Absorbance changes of C-550 and cytochrome b(559), and fluorescence-yield changes were measured during irradiation of chloroplasts at -196 degrees . The photo-reduction of C-550 proceeded more rapidly than the photo-oxidation of cytochrome b(559), and the fluorescence-yield change had similar kinetics to the cytochrome b(559) change. The fluorescence yield of chloroplasts exposed to a 16-musec ...