Browsing by Author "Podder, S K"
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Item Changes in ribosomes during development of chick embryo.(1975-09-01) Rao, U V; Cherayil, J D; Rao, P M; Podder, S KItem Dynamics of precipitin reaction: effect of the cholesterol & surface density of ganglioside, GM1, on the rate of reaction between lectin from Ricinus communis & liposome containing GM1.(1981-10-01) Podder, S K; Surolia, A; Bachhawat, B KItem Enzymatic degradation and circular dichroism of deoxyguanosine oligonucleotides.(1984-08-01) Thomas, T; Nandi, U S; Podder, S KItem Influence of Mn2+ on the stability of base pairing in DMSO.(1978-04-01) Chatterji, D; Nandi, U S; Podder, S KItem Lectin binding to complex carbohydrate at the interface: a study by resonance energy transfer.(1992-06-01) Chakrabarti, A; Podder, S KThe binding affinity of the oligosaccharide moiety of a neutral glycosphingolipid, asialoGM1, towards Ricinus communis agglutinin (RCAI) was determined for the first time by fluorescence resonance energy transfer (RET). The asialoGM1 was incorporated into a phospholipid (DMPC) vesicle doped with dansylated DPPE and then titrated with an increasing amount of the galactose specific RCAI. The efficiency of RET was determined by a saturable increase in the quenching of 'donor' fluorescence, i.e. the 'trp' residue of RCAI, due to the energy transfer from the 'acceptor' dansyl group on the surface of the vesicle. The apparent binding constant was found to be in the range of 10(5)-10(6) M-1 at 27 degrees C.Item Liposome-bearing glycosphingolipids: model membrane system for studying molecular mechanism of cell surface carbohydrate-mediated processes.(1988-02-01) Podder, S K; Chakraborti, A; Vijayalakshmi, K; Singh, P LItem Mode of action of antitumour antibiotic: Part II--Evidence for intercalation of mithramycin between DNA bases in the presence of Mg2+.(1979-02-01) Dasgupta, D; Shashiprabha, B K; Podder, S KItem Physico-chemical studies on human urinary beta-hexosaminidase A.(1977-03-01) Banerjee, D K; Basu, D; Podder, S KItem Reactivity of glycoconjugate in membrane system II: can a neutral glycolipid function as lectin receptor in the presence of gangliosides in plasma membrane.(1987-03) Podder, S K; Chakraborti, A; Vijayalakshmi, K; Singh, P Lalit KumarTo examine how surface potential controls the reactivity of glycoconjugates at cell surface, the interaction of galactose-specific lectins e.g. peanut agglutinin, Ricinus cummunis agglutinin with liposomes bearing asialo GM1 were studied in the presence of varying amount of ganglioside mixture, GMn. The presence of 5% GMn causes complete slowing down of precipitin reaction and thereby make carbohydrate moiety of asialo GM1 completely inaccessible i.e. ‘cryptic’. In contrast the presence of 1–2% GMn enhances the apparent rate and amplitude of the precipitin reaction as surface potential becomes more negative. The relevance of the findings has been discussed in relation to the expression and involvement of the cell-surface sialic acid residues during development and differentiation.Item Role of the liposomal surface carbohydrates on the uptake of entrapped enzyme by liver.(1977-08-01) Surolia, A; Podder, S K; Bachhawat, B KItem Specificity in protein-nucleic acid interaction: involvement of nucleic acids in non-enzymatic peptide condensation.(1981-08-01) Basu, H S; Podder, S KItem Specificity in protein-nucleic acid interaction: Part II--Binding of mono- & di-nucleoside phosphate to poly-L-lysine at different conformations.(1980-10-01) Podder, S K; Dasgupta, DItem Specificity in protein-nucleic acid interaction: Part III--Binding of dipeptide to polynucleotide, an equilibrium dialysis study.(1980-12-01) Podder, S K; Dasgupta, DItem Specificity in the protein-nucleic acid interaction: Part I-NMR study of peptide-nucleotide interactions.(1979-10-01) Dasgupta, D; Podder, S KItem Thermodynamic characterization of oligo dG.poly rC hybrid helices.(1986-08-01) Thomas, T; Nandi, U S; Podder, S KItem Unique subunit structure for Ricinus communis agglutinin.(1978-08-01) Surolia, A; Bachhawat, B K; Vithyathil, P J; Podder, S K