C-Terminal Sequence of Crystalline Bovine and Human Serum Albumins: Relationship of C-Terminus to Antigenic Determinants of Bovine Serum Albumin

1955 ◽  
Vol 77 (5) ◽  
pp. 1267-1269 ◽  
Author(s):  
Wilfrid F. White ◽  
Jane Shields ◽  
Kenneth C. Robbins
1964 ◽  
Vol 120 (3) ◽  
pp. 435-447 ◽  
Author(s):  
Marianne M. Dorner ◽  
Jonathan W. Uhr

Specific immunologic tolerance to bovine serum albumin (BSA) was induced in approximately one-half of the rabbits that had been primarily immunized and were prepared for a secondary antibody response to BSA. The state of tolerance lasted for several months in the majority of rabbits and was not easily terminated by immunization with human serum albumin followed by BSA.


1974 ◽  
Vol 20 (1) ◽  
pp. 70-73
Author(s):  
Bernard Klein

Abstract Glycylglycylglycine was investigated as a reference standard for use in serum protein measurement by the biuret reaction. The tripeptide-biuret solution has a molar absorptivity of 96 at 565 nm, and absorbances at both 550 nm and 565 nm are proportional to concentration. By a manual reference procedure, the 550-nm absorbance of 1.0 g of tripeptide was equivalent to that given by 1.72 ± 0.03 g of human serum albumin or 1.43 ± 0.03 g of bovine serum albumin. By the Technicon N14b automated procedure, the absorbance of 1.0 g of tripeptide at 550 nm was equivalent to that of 1.81 ± 0.02 g of human serum albumin or 1.89 ± 0.03 g of bovine serum albumin. Results for serum protein analyses over the range 4.0 to 9.0 g/dl, when tripeptide or serum albumin was used to prepare calibration curves, showed mean differences of 0.15 g/dl in the manual mode and 0.08 g/dl in the automated mode.


2013 ◽  
Vol 641-642 ◽  
pp. 858-861 ◽  
Author(s):  
Zhi Min Ren ◽  
Xi Nie ◽  
Sheng Shu Ai

In this paper, we used bovine serum albumin and polymer as the blocking agents and investigated the effect of blocking agents on non-specific background of polystyrene microbead that used the human serum immunoassay.The results showed that the nonspecific background is lower by using polymer blocking agents. The best blocking condition was that microbeads were blocked by PVXT (0.5% polyvinyl alcohol PVA, 0.8% polyvinylpyrrolidone, 0.05% Tween-20, PBS phosphate buffer, pH7.0) for two hours at room temperature.


2021 ◽  
Author(s):  
Yuta Morishige ◽  
Yoshiro Murase ◽  
Kinuyo Chikamatsu ◽  
Akio Aono ◽  
Yuriko Igarashi ◽  
...  

Objective: Mycobacterium tuberculosis (Mtb) H37Ra strain has been reported to rapidly enter the viable but non-culturable (VBNC) state following treatment with an NADH oxidase inhibitor (diphenyleneiodonium [DPI]) and to be resuscitated by fetal bovine serum (FBS). However, the mechanism underlying FBS-induced resuscitation is currently unclear. We tried to reveal the underlying mechanism of FBS-induced resuscitation using M. tuberculosis H37Rv. Methods: First, we evaluated the effect of DPI on culturability, viability and changes of cellular phenotypes toward H37Rv. Secondly, we measured the resuscitation-promoting effects of human serum albumin, egg-white albumin, N-acetyl-L-cysteine, and D-mannitol in DPI-induced VBNC cells, as antioxidative agents have been reported to be key molecules for resuscitation of other microbes. We also evaluated the effect of inhibition of cAMP production and protein kinase A on BSA-induced resuscitation. Results: DPI treatment successfully induced a VBNC state in H37Rv, resulting in a low proportion of culturable cells, loss of acid-fastness and lipid-accumulation but a high proportion of viable cells. Not only FBS but also bovine serum albumin (BSA) alone could resuscitate H37Rv. Contrary to our expectation, only human serum albumin had a similar resuscitative effect to BSA. The inhibition of adenylyl cyclase by SQ22536 did not have a significant effect on resuscitation; however, the inhibition of protein kinase A by H89 strongly suppressed the BSA-induced resuscitation. Conclusion: DPI-induced VBNC Mtb cells may be resuscitated via the activation of protein kinase A-dependent processes through interaction with BSA.


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