R. Iyengar

Publication List Details

Period

1999 - 2008

Number

29

Co-Authors

Optimizing Power-Expense to Extend Network Lifetime in Power Constrained Networks (2007)

K. Ch, R. Iyengar, S. Raghunath, B. Sikdar, S. Kalyanaraman

Abstract — In this paper we propose an optimization-based framework to design distributed algorithms to achieve optimal performance in powerconstrained networks. Specifically, we consider the...

Proximity of intracellular regulatory networks to monotone systems (2007)

A. Lipshtat, R. Iyengar, E. D. Sontag

Abstract: Networks that contain only sign-consistent loops, such as positive feedforward and feedback loops, function as monotone systems. Simulated using differential equations, monotone systems...

Scheduling algorithms for point-to-multipoint operation in IEEE 802.16 networks (2006)

R. Iyengar, K. Kar, B. Sikdar

Abstract — We study the resource allocation problem in OFDMA based 802.16 broadband wireless access systems. Frequency and time resources must be allocated by a central controller (Base Station) to...

On the prevalence and evaluation of recent TCP enhancements (2004)

Sourabh Ladha, Paul D. Amer, Armando Caro, R. Iyengar

Abstract- In recent years several enhancements to TCP congestion control and loss recovery mechanisms have been proposed and accepted as Internet standards. While each proposal has been accompanied...

Complexity and the Nervous System (1999)

J. W. Black, V. P. Gerskowitch, P. Leff, N. P. Shankley, L. Birnbaumer, T. L. Swartz, ...

, 650 (1995). 16. Protein structure query systems are available at www. pdb.bnl.gov/ and www.biosupplynet.com/cfdocs/ btk/btk.cfm; the genome projects are listed at www....

Immunohistochemical localization of adenylyl cyclase in rat brain indicates a highly selective concentration at synapses.

Mons, N, Harry, A, Dubourg, P, Premont, R T, Iyengar, R, Cooper, D M

Only three isoforms of adenylyl cyclase (EC 4.6.1.1) mRNAs (AC1, -2, and -5) are expressed at high levels in rat brain. AC1 occurs predominantly in hippocampus and cerebellum, AC5 is restricted to...

Phorbol ester-induced stimulation and phosphorylation of adenylyl cyclase 2.

Jacobowitz, O, Iyengar, R

Adenylyl cyclase 2 was expressed in Sf9 cells by recombinant baculovirus infection. Phorbol 12-myristate 13-acetate (PMA) treatment of cells expressing adenylyl cyclase 2 (AC2) increased basal...

Two members of a widely expressed subfamily of hormone-stimulated adenylyl cyclases.

Premont, R T, Chen, J, Ma, H W, Ponnapalli, M, Iyengar, R

cDNA encoding a hormone- and guanine nucleotide-stimulated adenylyl cyclase [ATP pyrophosphate-lyase (cyclizing), EC 4.6.1.1] (type 6) from rat liver and kidney has been cloned and expressed. This...

Activated alpha subunit of Go protein induces oocyte maturation.

Kroll, S D, Omri, G, Landau, E M, Iyengar, R

The capability of various activated guanine nucleotide binding regulatory protein (G protein) alpha subunits to induce meiotic maturation was studied. Activated Go protein alpha subunit (alpha o*)...

Beta gamma subunits of GTP-binding proteins inhibit muscarinic receptor stimulation of phospholipase C.

Moriarty, T M, Gillo, B, Carty, D J, Premont, R T, Landau, E M, Iyengar, R

This study examines the mechanism of guanine nucleotide-binding protein (G protein) coupling of receptors to phospholipase C. The Xenopus oocyte has a muscarinic receptor-activated Cl- current that...

Macrophage synthesis of nitrite, nitrate, and N-nitrosamines: precursors and role of the respiratory burst.

Iyengar, R, Stuehr, D J, Marletta, M A

The macrophage cell line RAW 264.7 when activated with Escherichia coli lipopolysaccharide and interferon-gamma synthesized nitrite (NO3-) and nitrate (NO3-). Medium change after the activation...

Hormone receptor modulates the regulatory component of adenylyl cyclase by reducing its requirement for Mg2+ and enhancing its extent of activation by guanine nucleotides.

Iyengar, R, Birnbaumer, L

N-Ethylmaleimide treatment of rat liver plasma membranes results in an adenylyl cyclase (EC 4.6.1.1) system that shows no measurable cyclizing activity but retains both an active glucagon receptor...

Naturally soluble component(s) that confer(s) guanine nucleotide and fluoride sensitivity to adenylate cyclase.

Bhat, M K, Iyengar, R, Abramowitz, J, Bordelon-Riser, M E, Birnbaumer, L

Supernatant fractions (300,000 x g, 60 min) from homogenates of rat liver, heart, and skeletal muscle, dog liver, and rabbit liver prepared without detergent in the homogenization medium (referred to...

Coupling of the glucagon receptor to adenylyl cyclase by GDP: evidence for two levels of regulation of adenylyl cyclase.

Iyengar, R, Birnbaumer, L

In rat liver plasma membranes preactivated with guanosine 5'-[beta,gamma-imido[triphosphate (GuoPP[NH]P), GDP promoted coupling of occupied glucagon receptor to adenylyl cyclase [adenylate cyclase;...

Pertussis toxin substrate, the putative Ni component of adenylyl cyclases, is an alpha beta heterodimer regulated by guanine nucleotide and magnesium.

Codina, J, Hildebrandt, J, Iyengar, R, Birnbaumer, L, Sekura, R D, Manclark, C R

The final step in a scheme for the purification of the guanine nucleotide- and Mg2+-binding stimulatory regulatory component (Ns) of adenylyl cyclase [adenylate cyclase; ATP pyrophosphate-lyase...

Immunohistochemical localization of adenylyl cyclase in rat brain indicates a highly selective concentration at synapses.

Mons, N, Harry, A, Dubourg, P, Premont, R T, Iyengar, R, Cooper, D M

Only three isoforms of adenylyl cyclase (EC 4.6.1.1) mRNAs (AC1, -2, and -5) are expressed at high levels in rat brain. AC1 occurs predominantly in hippocampus and cerebellum, AC5 is restricted to...

Phorbol ester-induced stimulation and phosphorylation of adenylyl cyclase 2.

Jacobowitz, O, Iyengar, R

Adenylyl cyclase 2 was expressed in Sf9 cells by recombinant baculovirus infection. Phorbol 12-myristate 13-acetate (PMA) treatment of cells expressing adenylyl cyclase 2 (AC2) increased basal...

Two members of a widely expressed subfamily of hormone-stimulated adenylyl cyclases.

Premont, R T, Chen, J, Ma, H W, Ponnapalli, M, Iyengar, R

cDNA encoding a hormone- and guanine nucleotide-stimulated adenylyl cyclase [ATP pyrophosphate-lyase (cyclizing), EC 4.6.1.1] (type 6) from rat liver and kidney has been cloned and expressed. This...

Activated alpha subunit of Go protein induces oocyte maturation.

Kroll, S D, Omri, G, Landau, E M, Iyengar, R

The capability of various activated guanine nucleotide binding regulatory protein (G protein) alpha subunits to induce meiotic maturation was studied. Activated Go protein alpha subunit (alpha o*)...

Beta gamma subunits of GTP-binding proteins inhibit muscarinic receptor stimulation of phospholipase C.

Moriarty, T M, Gillo, B, Carty, D J, Premont, R T, Landau, E M, Iyengar, R

This study examines the mechanism of guanine nucleotide-binding protein (G protein) coupling of receptors to phospholipase C. The Xenopus oocyte has a muscarinic receptor-activated Cl- current that...

Macrophage synthesis of nitrite, nitrate, and N-nitrosamines: precursors and role of the respiratory burst.

Iyengar, R, Stuehr, D J, Marletta, M A

The macrophage cell line RAW 264.7 when activated with Escherichia coli lipopolysaccharide and interferon-gamma synthesized nitrite (NO3-) and nitrate (NO3-). Medium change after the activation...

Hormone receptor modulates the regulatory component of adenylyl cyclase by reducing its requirement for Mg2+ and enhancing its extent of activation by guanine nucleotides.

Iyengar, R, Birnbaumer, L

N-Ethylmaleimide treatment of rat liver plasma membranes results in an adenylyl cyclase (EC 4.6.1.1) system that shows no measurable cyclizing activity but retains both an active glucagon receptor...

Naturally soluble component(s) that confer(s) guanine nucleotide and fluoride sensitivity to adenylate cyclase.

Bhat, M K, Iyengar, R, Abramowitz, J, Bordelon-Riser, M E, Birnbaumer, L

Supernatant fractions (300,000 x g, 60 min) from homogenates of rat liver, heart, and skeletal muscle, dog liver, and rabbit liver prepared without detergent in the homogenization medium (referred to...

Coupling of the glucagon receptor to adenylyl cyclase by GDP: evidence for two levels of regulation of adenylyl cyclase.

Iyengar, R, Birnbaumer, L

In rat liver plasma membranes preactivated with guanosine 5'-[beta,gamma-imido[triphosphate (GuoPP[NH]P), GDP promoted coupling of occupied glucagon receptor to adenylyl cyclase [adenylate cyclase;...

Pertussis toxin substrate, the putative Ni component of adenylyl cyclases, is an alpha beta heterodimer regulated by guanine nucleotide and magnesium.

Codina, J, Hildebrandt, J, Iyengar, R, Birnbaumer, L, Sekura, R D, Manclark, C R

The final step in a scheme for the purification of the guanine nucleotide- and Mg2+-binding stimulatory regulatory component (Ns) of adenylyl cyclase [adenylate cyclase; ATP pyrophosphate-lyase...

The bionomics of salt-water Anopheles gambiae in East Africa

Iyengar, R.

Following residual spraying of houses in Pemba Island with dieldrin as part of a malaria eradication programme, Anopheles gambiae were found breeding in salt-water pools in many parts of the island....

Inhibitory KIR–HLA receptor–ligand mismatch in autologous haematopoietic stem cell transplantation for solid tumour and lymphoma

Leung, W, Handgretinger, R, Iyengar, R, Turner, V, Holladay, M S, Hale, G A

Genes that encode killer Ig-like receptors (KIRs) and their HLA class I ligands segregate independently; thus, some individuals may express an inhibitory KIR gene but not its cognate ligand. We...