Structure and Activity of the N-Terminal Region of the Eukaryotic Cytolysin Equinatoxin II†

Biochemistry ◽  
2006 ◽  
Vol 45 (6) ◽  
pp. 1818-1828 ◽  
Author(s):  
Alison Drechsler ◽  
Cristina Potrich ◽  
Jennifer K. Sabo ◽  
Mattia Frisanco ◽  
Graziano Guella ◽  
...  
Keyword(s):  
Terminal Region ◽  
Equinatoxin Ii ◽  
Structure And Activity

Effect of lipid on the conformation of the N-terminal region of equinatoxin II: a synchrotron radiation circular dichroism spectroscopic study

2009 ◽  
Vol 39 (1) ◽  
pp. 121-127 ◽  
Author(s):  
Alison Drechsler ◽  
Andrew J. Miles ◽  
Raymond S. Norton ◽  
B. A. Wallace ◽  
Frances Separovic
Keyword(s):  
Circular Dichroism ◽  
Synchrotron Radiation ◽  
Spectroscopic Study ◽  
Terminal Region ◽  
Equinatoxin Ii ◽  
Circular Dichroïsm

Correlative transmission and high-resolution scanning electron microscopic studies on pituitary cells

1990 ◽  
Vol 48 (3) ◽  
pp. 20-21
Author(s):  
S. Tai
Keyword(s):  
Cell Types ◽  
Depth Of Field ◽  
Secretory Cells ◽  
Specific Cell ◽  
Pituitary Cells ◽  
Electron Microscopic ◽  
3 Dimensional ◽  
Microscopic Studies ◽  
Structure And Activity ◽  
Intracellular Structure

Extensive cytological and histological research, correlated with physiological experimental analysis, have been done on the anterior pituitaries of many different vertebrates which have provided the knowledge to create the concept that specific cell types synthesize, store and release their specific hormones. These hormones are stored in or associated with granules. Nevertheless, there are still many doubts - that need further studies, specially on the ultrastructure and physiology of these endocrine cells during the process of synthesis, transport and secretion, whereas some new methods may provide the information about the intracellular structure and activity in detail.In the present work, ultrastructural study of the hormone-secretory cells of chicken pituitaries have been done by using TEM as well as HR-SEM, to correlate the informations obtained from 2-dimensional TEM micrography with the 3-dimensional SEM topographic images, which have a continous surface with larger depth of field that - offers the adventage to interpretate some intracellular structures which were not possible to see using TEM.

Antibodies against the COOH-terminal region of E. coli ClpP protease in patients with primary biliary cirrhosis

2000 ◽  
Vol 33 (4) ◽  
pp. 528-536 ◽  
Author(s):  
Isabel Mayo ◽  
Paz Arizti ◽  
Albert Pares ◽  
Joaquin Oliva ◽  
Rita Alvarez Doforno ◽  
...  
Keyword(s):  
Primary Biliary Cirrhosis ◽  
Terminal Region ◽  
Biliary Cirrhosis ◽  
E Coli

Separation of Heparin into Subtractions by DEAE-Cellulose Chromatography

1979 ◽  
Vol 42 (05) ◽  
pp. 1452-1459 ◽  
Author(s):  
Robert H Yue ◽  
Toby Starr ◽  
Menard M Gertler
Keyword(s):  
High Activity ◽  
Uronic Acid ◽  
Deae Cellulose ◽  
Exchange Chromatography ◽  
Net Charge ◽  
Uronic Acid Content ◽  
Successful Separation ◽  
Salt Gradient ◽  
Structure And Activity ◽  
Low Activity

SummaryCommercial porcine heparin can be separated into three distinct subtractions by using DEAE-cellulose chromatography and a stepped salt gradient. Gram quantities of heparin can be fractionated by this technique. All three heparin subtractions can accelerate the inhibition of thrombin by antithrombin III with different efficiency. The specific activities of the high activity heparin, intermediate activity heparin and low activity heparin are 228 units/mg, 142 units/mg and 95 units/mg, respectively. Both the uronic acid content and the quantity of N-SO4 for all three heparin subfractions have been evaluated. The high activity heparin has the lowest uronic acid and N-SO4 content. The successful separation of commercial heparin into three distinct subfractions by means of ion-exchange chromatography suggests that the net charge on these three heparin components will serve as a model system in the elucidation of the structure and activity relationship to the biological function of heparin.

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