Light-stimulated Phosphorylation of Bovine Visual Pigments by Adenosine Triphosphate

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The adenosine triphosphate-adenosine diphosphate exchange reaction of oxidative phosphorylation.

Previous reports from this laboratory have demonstrated that the ATP-Pi32 1 exchange reaction (1) and the dinitrophenolstimulated ATPase activity (2) of mitochondrial subfragments (3-9) are reflections of intermediate enzymatic steps in the complex sequence of reactions (1, 3) in which phosphorylation of ADP is coupled to electron transport in the respiratory chain. This communication concerns ...

متن کامل

Adenosine 5′-triphosphate (ATP) synthesis by oxidative phosphorylation or photophosphorylation

phosphorylation or photophosphorylation is a multi-step, membrane-located process that provides the bulk of cellular energy in eukaryotes and many prokaryotes. Most of the ATP synthesis in these cells is catalyzed by the enzyme, F1Fo-ATP synthase, also called F1Fo-ATPase (F-ATPase), which in its simplest, bacterial, form is composed of eight subunits (α3:β3:γ:δ:ε:a:b2:c9–12). The archaeal A1Ao-...

متن کامل

Activation by adenosine triphosphate in the phosphorylation kinetics of sodium and potassium ion transport adenosine triphosphatase.

The steady state kinetics of sodium and potassium ion transport adenosine triphosphatase (EC 3.6-l. 3) suggests an activating action of adenosine triphosphate in addition to its action as a phosphate donor. This action might be an acceleration of dissociation of Kf or its congeners from the enzyme. To test this possibility transient kinetics of the phosphoenzyme was investigated. In membranes f...

متن کامل

Activation of visual pigments by light and heat.

Vision begins with photoisomerization of visual pigments. Thermal energy can complement photon energy to drive photoisomerization, but it also triggers spontaneous pigment activation as noise that interferes with light detection. For half a century, the mechanism underlying this dark noise has remained controversial. We report here a quantitative relation between a pigment's photoactivation ene...

متن کامل

Inhibition by Adenosine 5'-Triphosphate

Two major species of glucose-6-phosphate dehydrogenase (EC 1.1.1.49) differing in size, pyridine nucleotide specificity, and susceptibility to inhibition by adenosine 5'-triphosphate (ATP) were detected in extracts of Pseudomonas multivorans (which has recently been shown to be synonymous with the species Pseudomonas cepacia) ATCC 17616. The large species (molecular weight ca. 230,000) was acti...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Biological Chemistry

سال: 1973

ISSN: 0021-9258

DOI: 10.1016/s0021-9258(19)44415-3