scholarly journals Using a new protein-carbohydrate structure-forming agent in the technology of sausage products

2020 ◽  
Vol 9 ◽  
pp. 83-93
Author(s):  
A.K. Natyrov ◽  
◽  
A.B. Slozhenkin ◽  
O.A. Knyazhechenko ◽  
◽  
...  
1988 ◽  
Vol 60 (02) ◽  
pp. 255-261 ◽  
Author(s):  
A Hotchkiss ◽  
C J Refino ◽  
C K Leonard ◽  
J V O'Connor ◽  
C Crowley ◽  
...  

SummaryModification of the carbohydrate structures of recombinant tissue-type plasminogen activator (rt-PA) can increase or decrease its rate of clearance in rabbits. When rt-PA was treated with sodium periodate to oxidize carbohydrate residues, the rate of clearance was decreased from 9.6 ± 1.9 ml min−1 kg−1 to 3.5 ± 0.6 ml min−1 kg−1 (mean ± SD, n = 5). A similar change in the clearance of rt-PA was introduced by the use of endo-β-N-acetyl- glucosaminidase H (Endo-H), which selectively removes high mannose asparagine-linked oligosaccharides; the clearance of Endo-H-treated rt-PA was 5.0 ± 0.5 ml min−1 kg−1. A mutant of rt-PA was produced with an amino acid substitution at position 117 (Asn replaced with Gin) to remove a potential glycosylation site that normally contains a high mannose structure. The clearance of this material was also decreased, similar to the periodate and Endo-H-treated rt-PA. Conversely, when rt-PA was produced in the CHO 15B cell line, which can produce only high mannose oligosaccharide structures on glycoproteins, the clearance was increased by a factor of 1.8. These results demonstrate that the removal of rt-PA from the blood depends significantly upon the nature of its oligosaccharide structures.


Acta Naturae ◽  
2017 ◽  
Vol 9 (4) ◽  
pp. 92-100 ◽  
Author(s):  
A. V. Svirid ◽  
◽  
P. V. Ershov ◽  
E. O. Yablokov ◽  
L. A. Kaluzhskiy ◽  
...  

2019 ◽  
Vol 23 (2) ◽  
pp. 117-119 ◽  
Author(s):  
D. N. Paskalev ◽  
B. T. Galunska ◽  
D. Petkova-Valkova

Tamm–Horsfall Protein (uromodulin) is named after Igor Tamm and Franc Horsfall Jr who described it for the first time in 1952. It is a glycoprotein, secreted by the cells in the thick ascending limb of the loop of Henle. This protein will perform a number of important pathophysiological functions, including protection against uroinfections, especially caused by E. Сoli, and protection against formation of calcium concernments in the kidney. Igor Tamm (1922-1995) is an outstanding cytologist, virologist and biochemist. He is one of the pioneers in the study of viral replication. He was born in Estonia and died in the USA. In 1964 he was elected for a professorship in Rockefeller Institute for Medical Research, where has been working continuously. Since 1959, he became a head of the virology lab established by his mentor and co-author Franc Horsfall. In the course of studies on the natural inhibitor of viral replication, Tamm and Horsfall isolated and characterized biochemically a new protein named after their names. Franc Lappin Horsfall Jr (1906-1971) was a well-known clinician and virologist with remarkable achievements in internal medicine. He was born and died in the USA. He worked in the Rockefeller Hospital from 1934 to 1960, then in the Center for Cancer Research at the Sloan-Kettering Institute. Here he was a leader of a research team studying the molecular mechanisms of immunity, the effects of chemotherapy with benzimidazole compounds (together with I. Tamm), coxsackie viruses, herpes simplex virus, etc. 


2007 ◽  
Vol 63 (a1) ◽  
pp. s137-s137
Author(s):  
T. Hasegawa ◽  
K. Hamada ◽  
M. Sato ◽  
M. Motohara ◽  
S. Sano ◽  
...  

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