S. Majumder

Publication List Details

Period

1995 - 2008

Number

48

Co-Authors

Relativistic calculations of the lifetimes and hyperfine structure constants in 67Zn+ (2008)

Dixit, G, Nataraj, H. S, Sahoo, B. K, Chaudhuri, R. K, Majumder, S

This work presents accurate ab initio determination of the magnetic dipole (M1) and electric quadrupole (E2) hyperfine structure constants for the ground and a few low-lying excited states in 67Zn+,...

Ab initio calculations of forbidden transition amplitudes and lifetimes of the low-lying states in V4+ (2007)

Dixit, G, Sahoo, B. K, Chaudhuri, R. K, Majumder, S

We report electric quadrupole (E2) and magnetic dipole (M1) transition amplitudes of the first few low-lying states of quadruply ionized vanadium (V4+), which are important in various experimental...

Accurate Estimates of Circumstellar and Interstellar Lines of Quadruply Ionized Vanadium Using the Coupled Cluster Approach (2007)

Dixit, G, Sahoo, B. K, Deshmukh, P. C, Chaudhuri, R. K, Majumder, S

Accurate ab initio calculations have been carried out to study the valence electron removal energies and oscillator strengths of astrophysically important electromagnetic transitions of quadruply...

Ab initio relativistic many-body calculation of hyperfine splitting of ^{113}Cd^+ (2007)

Dixit, G, Nataraj, H. S, Sahoo, B. K, Chaudhuri, R. K, Majumder, S

This work presents accurate ab initio determination of the hyperfine splitting for the ground state and few low-lying excited states of 113Cd+; important candidates for the frequency standard in the...

Relativistic {it Ab initio} calculations of forbidden transition probabilities and lifetimes of low-lying states in Ti IV (2007)

Subhasish, M, Dixit, G, Sahoo, B. K, Chaudhuri, R. K, Majumder, S

The astrophysically important electric quadrupole (E2) and magnetic dipole (M1) transitions for the low-lying states of triply ionized titanium (Ti IV) are calculated very accurately using a...

Relativistic ab initio study of forbidden transitions of singly ionized Zinc using CCSD(T) (2007)

Dixit, G, Sahoo, B. K, Chaudhuri, R. K, Majumder, S

In this work, the {\it ab initio} calculations have been carried out to study the oscillator strengths corresponding to `forbidden transitions' of astrophysically important electromagnetic...

Ionization potential and excitation energy calculations for Ba+ using the relativistic coupled-cluster method (2001)

Gopakumar, G, Merlitz, H, Majumder, S, Chaudhuri, R. K, Das, B. P, Mahapatra, U. S, ...

We report the results of our relativistic coupled cluster singles, doubles, and partial triples calculations of the ionization potentials (IP) and excitation energies (EE) for different low-lying...

Excitation energies and oscillator strengths of CaI using multireference many-body perturbation theory (1999)

Majumder, S, Das, B. P, Chaudhuri, R. K

Excitation energies and oscillator strengths of neutral calcium (Ca I) are calculated through third order using a variant of the multireference many-body perturbation theory, known as the effective...

Sequence-independent induction of Sp1 transcription factor activity by phosphorothioate oligodeoxynucleotides.

Perez, J R, Li, Y, Stein, C A, Majumder, S, Van Oorschot, A, Narayanan, R

Modified analogues of antisense oligodeoxynucleotides (ODNs), particularly phosphorothioates ([S]ODNs), have been extensively used to inhibit gene expression. The potential sequence specificity of...

Trypanosoma cruzi immunosuppressive factor decreases the interleukin-2 mRNA level in cultured normal activated human lymphocytes.

Majumder, S, Kierszenbaum, F

We show here that the marked inhibition of interleukin-2 production seen in hosts acutely infected with Trypanosoma cruzi can be reproduced in vitro by adding a T. cruzi suspension filtrate to...

Inhibition of host cell invasion and intracellular replication of Trypanosoma cruzi by N,N'-bis(benzyl)-substituted polyamine analogs.

Majumder, S, Kierszenbaum, F

We studied the effects of two N,N'-bis(benzyl)-substituted polyamine analogs on the capacities of Trypanosoma cruzi to invade and multiply within a mammalian host cell. At concentrations as low as 1...

Intermediates in plasmid pT181 DNA replication.

Majumder, S, Novick, R P

Staphylococcus aureus plasmid pT181 is thought to replicate via an asymmetric rolling-circle mechanism. By studying pulse labeled replicative intermediates, here we report that pT181 replication...

Coding sequence for the pT181 repC product: a plasmid-coded protein uniquely required for replication.

Novick, R P, Adler, G K, Majumder, S, Khan, S A, Carleton, S, Rosenblum, W D, ...

pT181 is a 4.4-kilobase plasmid from Staphylococcus aureus specifying tetracycline resistance and present in about 20 copies per cell. The existence of a diffusible pT181 product required for plasmid...

TATA-dependent enhancer stimulation of promoter activity in mice is developmentally acquired.

Majumder, S, DePamphilis, M L

Herpes simplex virus (HSV) thymidine kinase (tk) promoter activity depends on four transcription factor binding sites, one of which is a TATA box sequence, and the presence of either a cis-acting...

c-kit protein, a transmembrane kinase: identification in tissues and characterization.

Majumder, S, Brown, K, Qiu, F H, Besmer, P

The proto-oncogene c-kit encodes a transmembrane kinase which is related to the receptors for colony-stimulating factor type 1 and platelet-derived growth factor, as well as to the immunoglobulin...

Analysis of gene expression in mouse preimplantation embryos demonstrates that the primary role of enhancers is to relieve repression of promoters.

Majumder, S, Miranda, M, DePamphilis, M L

Enhancers are generally viewed simply as extensions of promoters, lacking a function of their own. However, previous studies of mouse preimplantation embryos revealed that 1-cell embryos can utilize...

Translocation of mycobacillin synthetase in Bacillus subtilis.

Mukhopadhyay, N K, Ghosh, S K, Majumder, S, Bose, S K

The extracellular release of mycobacillin from Bacillus subtilis first occurred in the medium at the onset of stationary phase and continued at a high rate even after 6 days. Mycobacillin synthetase...

Purification of the constituent enzyme fractions of mycobacillin synthetase.

Ghosh, S K, Mukhopadhyay, N K, Majumder, S, Bose, S K

The final purification of the three-fraction enzyme complex mycobacillin synthetase was done by hydroxyapatite column chromatography and sucrose-density-gradient centrifugation; each of the fractions...

Characterization of three-fraction mycobacillin synthetase.

Mukhopadhyay, N K, Majumder, S, Ghosh, S K, Bose, S K

Mycobacillin synthetase lacks aspartic acid racemase, alanine racemase and glutamic acid racemase activities. The enzyme also does not respond to ATP-[32P]Pi exchange, nor does it catalyse the...

Role of ATP and enzyme-bound nascent peptides in the control of elongation for mycobacillin synthesis.

Ghosh, S K, Majumder, S, Mukhopadhyay, N K, Bose, S K

The enzyme fraction A, a constituent of the three-fraction (A, B and C) enzyme complex mycobacillin synthetase, elongated tri- and tetra-peptides, under enzyme-bound conditions, to tetra- and...

Fractionation of the mycobacillin-synthesizing enzyme system.

Ghosh, S K, Mukhopadhyay, N K, Majumder, S, Bose, S K

The mycobacillin-synthesizing enzyme system was highly purified by fractionation at 30-55% (NH4)2SO4 saturation. The enzyme concentrate on Sephadex G-200 gel chromatography was resolved into three...

Functional characterization of constituent enzyme fractions of mycobacillin synthetase.

Ghosh, S K, Majumder, S, Mukhopadhyay, N K, Bose, S K

The enzyme fraction A, a constituent enzyme of the three-fraction enzyme mycobacillin synthetase, independently and sequentially activated five amino acids starting from L-proline, producing the...

Developmental acquisition of enhancer function requires a unique coactivator activity.

Majumder, S, Zhao, Z, Kaneko, K, DePamphilis, M L

Enhancers are believed to stimulate promoters by relieving chromatin-mediated repression. However, injection of plasmid-encoded genes into mouse oocytes and embryos revealed that enhancers failed to...

Sequence-independent induction of Sp1 transcription factor activity by phosphorothioate oligodeoxynucleotides.

Perez, J R, Li, Y, Stein, C A, Majumder, S, Van Oorschot, A, Narayanan, R

Modified analogues of antisense oligodeoxynucleotides (ODNs), particularly phosphorothioates ([S]ODNs), have been extensively used to inhibit gene expression. The potential sequence specificity of...

Trypanosoma cruzi immunosuppressive factor decreases the interleukin-2 mRNA level in cultured normal activated human lymphocytes.

Majumder, S, Kierszenbaum, F

We show here that the marked inhibition of interleukin-2 production seen in hosts acutely infected with Trypanosoma cruzi can be reproduced in vitro by adding a T. cruzi suspension filtrate to...

Inhibition of host cell invasion and intracellular replication of Trypanosoma cruzi by N,N'-bis(benzyl)-substituted polyamine analogs.

Majumder, S, Kierszenbaum, F

We studied the effects of two N,N'-bis(benzyl)-substituted polyamine analogs on the capacities of Trypanosoma cruzi to invade and multiply within a mammalian host cell. At concentrations as low as 1...

Intermediates in plasmid pT181 DNA replication.

Majumder, S, Novick, R P

Staphylococcus aureus plasmid pT181 is thought to replicate via an asymmetric rolling-circle mechanism. By studying pulse labeled replicative intermediates, here we report that pT181 replication...

Coding sequence for the pT181 repC product: a plasmid-coded protein uniquely required for replication.

Novick, R P, Adler, G K, Majumder, S, Khan, S A, Carleton, S, Rosenblum, W D, ...

pT181 is a 4.4-kilobase plasmid from Staphylococcus aureus specifying tetracycline resistance and present in about 20 copies per cell. The existence of a diffusible pT181 product required for plasmid...

TATA-dependent enhancer stimulation of promoter activity in mice is developmentally acquired.

Majumder, S, DePamphilis, M L

Herpes simplex virus (HSV) thymidine kinase (tk) promoter activity depends on four transcription factor binding sites, one of which is a TATA box sequence, and the presence of either a cis-acting...

c-kit protein, a transmembrane kinase: identification in tissues and characterization.

Majumder, S, Brown, K, Qiu, F H, Besmer, P

The proto-oncogene c-kit encodes a transmembrane kinase which is related to the receptors for colony-stimulating factor type 1 and platelet-derived growth factor, as well as to the immunoglobulin...

Analysis of gene expression in mouse preimplantation embryos demonstrates that the primary role of enhancers is to relieve repression of promoters.

Majumder, S, Miranda, M, DePamphilis, M L

Enhancers are generally viewed simply as extensions of promoters, lacking a function of their own. However, previous studies of mouse preimplantation embryos revealed that 1-cell embryos can utilize...

Translocation of mycobacillin synthetase in Bacillus subtilis.

Mukhopadhyay, N K, Ghosh, S K, Majumder, S, Bose, S K

The extracellular release of mycobacillin from Bacillus subtilis first occurred in the medium at the onset of stationary phase and continued at a high rate even after 6 days. Mycobacillin synthetase...

Purification of the constituent enzyme fractions of mycobacillin synthetase.

Ghosh, S K, Mukhopadhyay, N K, Majumder, S, Bose, S K

The final purification of the three-fraction enzyme complex mycobacillin synthetase was done by hydroxyapatite column chromatography and sucrose-density-gradient centrifugation; each of the fractions...

Characterization of three-fraction mycobacillin synthetase.

Mukhopadhyay, N K, Majumder, S, Ghosh, S K, Bose, S K

Mycobacillin synthetase lacks aspartic acid racemase, alanine racemase and glutamic acid racemase activities. The enzyme also does not respond to ATP-[32P]Pi exchange, nor does it catalyse the...

Role of ATP and enzyme-bound nascent peptides in the control of elongation for mycobacillin synthesis.

Ghosh, S K, Majumder, S, Mukhopadhyay, N K, Bose, S K

The enzyme fraction A, a constituent of the three-fraction (A, B and C) enzyme complex mycobacillin synthetase, elongated tri- and tetra-peptides, under enzyme-bound conditions, to tetra- and...

Fractionation of the mycobacillin-synthesizing enzyme system.

Ghosh, S K, Mukhopadhyay, N K, Majumder, S, Bose, S K

The mycobacillin-synthesizing enzyme system was highly purified by fractionation at 30-55% (NH4)2SO4 saturation. The enzyme concentrate on Sephadex G-200 gel chromatography was resolved into three...

Functional characterization of constituent enzyme fractions of mycobacillin synthetase.

Ghosh, S K, Majumder, S, Mukhopadhyay, N K, Bose, S K

The enzyme fraction A, a constituent enzyme of the three-fraction enzyme mycobacillin synthetase, independently and sequentially activated five amino acids starting from L-proline, producing the...

Developmental acquisition of enhancer function requires a unique coactivator activity.

Majumder, S, Zhao, Z, Kaneko, K, DePamphilis, M L

Enhancers are believed to stimulate promoters by relieving chromatin-mediated repression. However, injection of plasmid-encoded genes into mouse oocytes and embryos revealed that enhancers failed to...

The impact of violent injuries on an NHS plastic surgery unit.

Thornton, D. J. A., Timmons, M. J., Majumder, S., Kranidhiotis, N. M.

BACKGROUND: Violence and injuries caused by violence appear to be increasing. PATIENTS AND METHODS: A prospective study of violent injuries treated in our unit. RESULTS: Over a 5-month period, 148...