l -histidine improves water retention of heat-induced gel of chicken breast myofibrillar proteins in low ionic strength solution

2016 ◽  
Vol 51 (5) ◽  
pp. 1195-1203 ◽  
Author(s):  
Xing Chen ◽  
Yong Li ◽  
Ruiyun Zhou ◽  
Zhaiming Liu ◽  
Fengzhi Lu ◽  
...  

1996 ◽  
Vol 44 (2) ◽  
pp. 408-415 ◽  
Author(s):  
Ganesan Krishnamurthy ◽  
Hsin-Sui Chang ◽  
Herbert O. Hultin ◽  
Yuming Feng ◽  
Subramanian Srinivasan ◽  
...  


1994 ◽  
Vol 42 (4) ◽  
pp. 863-867 ◽  
Author(s):  
David W. Stanley ◽  
Ashley P. Stone ◽  
Herbert O. Hultin




1975 ◽  
Vol 32 (9) ◽  
pp. 1629-1632 ◽  
Author(s):  
V. D. Tran

The effects of adding sodium pyruvate and KCl (0–0.6 M) on protein solubility in cod homogenates were compared. KCl extracted slightly more protein than sodium pyruvate did in samples kept at 0 C for up to 5 days. In contrast, sodium pyruvate extracted more protein than did KCl in samples kept at −20 C for up to 14 days. In the presence of sodium pyruvate, changes occurred during freezing and frozen storage, which caused the myofibrillar proteins to become soluble at ionic strengths as low as 0.1.







Author(s):  
J.S. Wall ◽  
V. Maridiyan ◽  
S. Tumminia ◽  
J. Hairifeld ◽  
M. Boublik

The high contrast in the dark-field mode of dedicated STEM, specimen deposition by the wet film technique and low radiation dose (1 e/Å2) at -160°C make it possible to obtain high resolution images of unstained freeze-dried macromolecules with minimal structural distortion. Since the image intensity is directly related to the local projected mass of the specimen it became feasible to determine the molecular mass and mass distribution within individual macromolecules and from these data to calculate the linear density (M/L) and the radii of gyration.2 This parameter (RQ), reflecting the three-dimensional structure of the macromolecular particles in solution, has been applied to monitor the conformational transitions in E. coli 16S and 23S ribosomal RNAs in solutions of various ionic strength.In spite of the differences in mass (550 kD and 1050 kD, respectively), both 16S and 23S RNA appear equally sensitive to changes in buffer conditions. In deionized water or conditions of extremely low ionic strength both appear as filamentous structures (Fig. la and 2a, respectively) possessing a major backbone with protruding branches which are more frequent and more complex in 23S RNA (Fig. 2a).



1960 ◽  
Vol 4 (01) ◽  
pp. 031-044
Author(s):  
George Y. Shinowara ◽  
E. Mary Ruth

SummaryFour primary fractions comprising at least 97 per cent of the plasma proteins have been critically appraised for evidence of denaturation arising from a low temperature—low ionic strength fractionation system. The results in addition to those referable to the recovery of mass and biological activity include the following: The high solubilities of these fractions at pH 7.3 and low ionic strengths; the compatibility of the electrophoretic and ultracentrifugal data of the individual fractions with those of the original plasma; and the recovery of hemoglobin, not hematin, in fraction III obtained from specimens contaminated with this pigment. However, the most significant evidence for minimum alterations of native proteins was that the S20, w and the electrophoretic mobility data on the physically recombined fractions were identical to those found on whole plasma.The fractionation procedure examined here quantitatively isolates fibrinogen, prothrombin and antithrombin in primary fractions. Results have been obtained demonstrating its significance in other biological systems. These include the following: The finding of 5 S20, w classes in the 4 primary fractions; the occurrence of more than 90 per cent of the plasma gamma globulins in fraction III; the 98 per cent pure albumin in fraction IV; and, finally, the high concentration of beta lipoproteins in fraction II.



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