Autocrine ligand binding to cell receptors. Mathematical analysis of competition by solution "decoys"

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Analysis of ligand binding to receptors by competition kinetics. Application to muscarinic antagonists in rat brain cortex.

We propose a method for obtaining kinetic parameters of unlabeled ligands which is based on analyzing the effect of their competition on the binding kinetics of a labeled ligand. In this method (competition kinetics), the binding kinetics of a labeled ligand are measured in the absence and in the presence of given concentrations of a competing unlabeled ligand. The rate equations appropriate to...

متن کامل

Quantification of Ligand Binding to G-Protein Coupled Receptors on Cell Membranes by Ellipsometry

G-protein-coupled receptors (GPCRs) are prime drug targets and targeted by approximately 60% of current therapeutic drugs such as β-blockers, antipsychotics and analgesics. However, no biophysical methods are available to quantify their interactions with ligand binding in a native environment. Here, we use ellipsometry to quantify specific interactions of receptors within native cell membranes....

متن کامل

Ligand accumulation in autocrine cell cultures.

Cell-culture assays are routinely used to analyze autocrine signaling systems, but quantitative experiments are rarely possible. To enable the quantitative design and analysis of experiments with autocrine cells, we develop a biophysical theory of ligand accumulation in cell-culture assays. Our theory predicts the ligand concentration as a function of time and measurable parameters of autocrine...

متن کامل

Real-time quantitative measurement of autocrine ligand binding indicates that autocrine loops are spatially localized.

Autocrine ligands are important regulators of many normal tissues and have been implicated in a number of disease states, including cancer. However, because by definition autocrine ligands are synthesized, secreted, and bound to cell receptors within an intrinsically self-contained "loop," standard pharmacological approaches cannot be used to investigate relationships between ligand/receptor bi...

متن کامل

A structural view of ligand binding to the retinoid receptors

Nuclear receptors play an important role in transcription regulation. They bind as homoor heterodimers to the response elements of their target genes and interact with numerous and diverse partners, e. g. coactivator and corepressor proteins, and transcription factors. Many of these processes are ligand-dependent, i. e. binding of natural ligands activates the nuclear receptor through conformat...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Biophysical Journal

سال: 1992

ISSN: 0006-3495

DOI: 10.1016/s0006-3495(92)81856-8