Now showing items 11-20 of 29
Properties of the cyanobacterial coupling factor ATPase from Spirulina platensis : II. Activity of the purified and membrane-bound enzymes
(Elsevier, 1986-02-15)
Cyanobacterial (Spirulina platensis) photosynthetic membranes and isolated F1 ATPase were characterized with respect to ATP activity. The following results indicate that the regulation of expression of ATPase activity in ...
Heparin inhibition of ferredoxin-NADP reductase in chloroplast thylakoid membranes
(Elsevier, 1985-02-01)
Heparin, an anionic polysaccharide, inhibited the ferredoxin-catalyzed reduction of NADP in spinach chloroplast thylakoid membranes. Under the same conditions of assay, heparin did not interfere markedly with photoreduction ...
Changes in protein kinase C activity are associated with the differentiation of Friend erythroleukemia cells
(Elsevier, 1987-02-18)
We investigated the activity and cellular distribution of protein kinase C during the dimethylsulfoxide (DMSO) and hypoxanthine-induced differentiation of Friend murine erythroleukemia cells. Most of the cellular protein ...
Cyanobacterial and chloroplast F1-ATPases: cross-reconstitution of photophosphorylation and subunit immunological relationships
(Elsevier, 1986-09-10)
The photosynthetic F1-ATPase from the cyanobacterium Spirulina platensis was recently purified in a five-subunit, reconstitutively active form (Hicks, D.B. and Yocum, C.F. (1986) Arch. Biochem. Biophys. 245, 220-229). Here ...
Field-dispersion profiles of the proton spin-lattice relaxation rate in chloroplast suspensions. Effect of manganese extraction by EDTA, Tris, and hydroxylamine
(Elsevier, 1980-08-05)
Proton spin-lattice relaxation rates (R1) have been measured in a variety of dark-adapted chloroplast suspensions over a range of field strengths between 1 and 15 kG (4-5 MHz). When the effects of EDTA or Tris washing on ...
Spectroscopic characterization of CP26, a chlorophyll a/b binding protein of the higher plant Photosystem II complex
(Elsevier, 1994-12-30)
A spectroscopic study is presented of the minor chlorophyll a / b binding protein CP26 isolated from spinach by means of a dodecylmaltoside/betaine washing procedure. The preparations are characterized by a chlorophyll a ...
The chloride requirement for photosynthetic oxygen evolution: Factors affecting nucleophilic displacement of chloride from the oxygen-evolving complex
(Elsevier, 1986-04-02)
Previous research (Sandusky, P.O. and Yocum, C.F. (1983) FEBS Lett. 162, 339-343 and (1984) Biochim. Biophys. Acta 766, 603-611) has documented a competition between chloride and ammonia or Tris for a binding site within ...
Properties of the cyanobacterial coupling factor ATPase from Spirulina platensis : I. Electrophoretic characterization and reconstitution of photophosphorylation
(Elsevier, 1986-02-15)
The coupling factor ATPase (F1) from photosynthetic membranes of the cyanobacterium Spirulina platensis was purified to homogeneity by a combination of ion-exchange chromatography and sucrose density gradient centrifugation. ...
Reversal of dibromothymoquinone inhibition of photosynthetic electron transport by bovine serum albumin
(Elsevier, 1980-09)
Addition of bovine serum albumin to cholorplasts inhibited by prior addition of 1 [mu] dibromothymoquinone results in a time- and light-dependent restoration of electron transport activity. The kinetics of this reversal ...