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SOME RESULTS ON THE UNIQUE RANGE SETS
Chakraborty, Bikash,Kamila, Jayanta,Pal, Amit Kumar,Saha, Sudip Korean Mathematical Society 2021 대한수학회지 Vol.58 No.3
In this paper, we exhibit the equivalence between different notions of unique range sets, namely, unique range sets, weighted unique range sets and weak-weighted unique range sets under certain conditions. Also, we present some uniqueness theorems which show how two meromorphic functions are uniquely determined by their two finite shared sets. Moreover, in the last section, we make some observations that help us to construct other new classes of unique range sets.
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Jeng-Liang Han,Bikash Pal,Kuo-Ching Chu,Chien-Tai Ren,Chung-Yi Wu 한국당과학회 2012 한국당과학회 학술대회 Vol.2012 No.1
Polysialic acids, linearly fused N-acetylneuraminic acid (Neu5Ac), play a central role in numerous biological recognition processes such as lymphocyte homing, tumor metathesis, meningitis, urinary tract infections and pathogenic bacteria infections. Three types of polysialic acids, which are different by the internal linkages, have been isolated and identified from the microorganisms. The α (2→8) polysialic acid is a component of neuroinvasive E. coli K1and N. meningitida serogroup B, while the α (2→9) polysialic acid is a component of N. meningitida serogroup C. The alternating α (2→8)/α (2→9) polysialic acid is isolated from E. coli K92 and Bos-12 strains and not found in mammalian systems, making it a potentially carbohydrate vaccine for medicinal treatment. The glycoconjugates of isolated α (2→9) polysialic acid and a carrier protein (ex: diphtheria or tentanus toxoid) are the current vaccines against Meningococcal group C diseases; however, these vaccines are often heterogeneous or contaminated with other antigenic components due to the difficulty in purifying polysialic acids from natural sources. Recently, our lab has successfully and efficiently synthesized α (2→9) polysialic acids up to dodecamers with high yield using 5 -N,4-O-carbonyl protected phosphate-based donors via the convergent block synthesis strategy.
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Amrita Banerjee,Pradeep Kumar Das Mohapatra,Shilpee Pal,Keshab Chandra Mondal,Bikash Ranjan Pati,Arnab Sen,Tanmay Paul 셀메드 세포교정의약학회 2014 TANG Vol.4 No.1
Anthrax is the deadly disease for human being caused by Bacillus anthracis. Instantaneous research work on the mode of infection of the organism revealed that different proteases are involved in different steps of pathogenesis. Present study reports the in silico characterization and the detection of pathogenic proteases involved in anthrax infection through protein-protein interaction. A total of 13 acid, 9 neutral, and 1 alkaline protease of Bacillus anthracis were selected for analysing the physicochemical parameter, the protein superfamily and family search, multiple sequence alignment, phylogenetic tree construction, protein-protein interactions and motif finding. Among the 13 acid proteases, 10 were found as extracellular enzymes that interact with immune inhibitor A (InhA) and help the organism to cross the blood brain barrier during the process of infection. Multiple sequence alignment of above acid proteases revealed the position 368, 489, and 498-contained 100% conserved amino acids which could be used to deactivate the protease. Among the groups analyzed, only acid protease were found to interact with InhA, which indicated that metalloproteases of acid protease group have the capability to develop pathogenesis during B. anthracis infection. Deactivation of conserved amino acid position of germination protease can stop the sporulation and germination of B anthracis cell. The detailed interaction study of neutral and alkaline proteases could also be helpful to design the interaction network for the better understanding of anthrax disease.
ScienceON
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