measurement Protocols

Category: Cell Biology and Cell Culture: Apoptosis Protocols: Apoptosis Analysis

An Integrative Procedure for Apoptosis Identification and Measurement. Yingyu Cui Lab/Group: National Key Laboratory of Protein Engineering and Plant Genetic Engineering, College of Life Sciences. I have uploaded an integrative procedure through which a relatively satisfactory result can be obtained following a single stage of cell culture and transient cell treatment, then detection with different instruments. This shortens experiment time. - [Read An Integrative Procedure For Apoptosis Identification And Measurement]

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols: Apoptosis Cytometry Protocols

An integrative procedure through which a relatively satisfactory result can be obtained following a single stage of cell culture and transient cell treatment, then detection with different instruments. This shortens experiment time. - [Read Apoptosis Identification and Measurement Protocol]

Category: Immunology: B Cell Protocols

Describes the antigenic stimulation of in vitro antibody production by B cells and the subsequent measurement of secreted antibodies. The first protocol is a generalized system for inducing in vitro antibody production and can accommodate various types of antigens under study. Secreted antibodies can then be measured with an enzyme-linked immunosorbent assay (ELISA) or other soluble-antibody detection systems. - [Read Assays for B Lymphocyte Function Protocols]

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols: Intracellular Ion Measurement Protocols

Protocol for Calcium Flux: Indo-1 loading and sample staining procedure for simultaneous measurement of intracellular Ca2+. Includes: Preparation of INDO-1; Preparation of Ionomycin. - [Read Calcium Flux: Indo-1 Loading and Sample Staining Procedure for Simultaneous Measurement of Intra Ca2]

Category: Cell Biology and Cell Culture

Cell Mass by Measurement of Turbidity. Cell Biology Laboratory Manual. Heidcamp - [Read Cell Mass by Measurement of Turbidity]

Category: Bacterial Cell Culture Protocols

Protocol for measurement of cell mass by turbidity. - [Read Cell Mass by Measurement of Turbidity Protocol]

Category: Microscopy Protocols: Live-Cell Imaging Protocols

Manual measurement and manipulation of the cell surface requires access to the cells, usually in an open chamber. Temperature-controlled chambers or stage inserts are preferred for maintaining physiological activity during the experiment. For example, heated culture dishes with coverslip glass bottoms (Bioptechs) permit high-resolution fluorescence microscopy of living cells during force application. - [Read Chambers for Examination of Live Cells under Mechanical Stress Protocol]

Category: Radioactivity

Radioactive Decay, Methods of detection, Liquid scintillation counting, Background and Quenching, The scintillation counter printout. David R. Caprette, Rice Univ. - [Read Detection and Measurement of Radioactivity]

Category: Reporter Gene Assays: Luciferase Assay Protocols

Protocol for dual luciferase reporter system. Includes: Transfections; Cell Lysis; Reagent Preparation; Luminescence measurement; Wash injectors. - [Read Dual Luciferase Reporter System Protocol (PROMEGA)]

Category: ELISA Protocols

The cyclooxygenase (COX) reaction can be monitored by measurement of oxygen consumption, peroxidase co-substrate oxidation or prostaglandin (PG) detection. This protocol describes a procedure measuring cyclooxygenase activity by quantifying PGE2 produced by enzymatic conversion of arachidonic acid, in the presence or absence of potential inhibitors. - [Read ELISA Method to Measure Inhibition of the COX Enzymes Protocol]

Category: Signalling Signal Transduction Protocols: Calcium Measurement Protocols

Shaw et al. Fungal Genetics and Biology 2001. first report of a plant pathogenic fungus for which aequorin-based Ca21 measurement protocols have been developed. - [Read Expression of Recombinant Aequorin as an Intracellular Calcium Reporter PDF]

Category: Molecular Imaging

ImageJ - Image Processing and Analysis in Java. Useful program for MacOs MacosX and PC. Analysis includes: Measure area, mean, standard deviation, min and max of selection or entire image. Measure lengths and angles. Use real world measurement units s - [Read ImageJ - Image Processing and Analysis in Java]

Category: Signalling Signal Transduction Protocols: Calcium Measurement Protocols

Protocol by using the technique of Indo-1 loading and sample staining procedure for simultaneous measurement of intracellular Ca2+. Protocol includes: Preparation of Indo-1 and preparation of Ionomycin. - [Read Indo-1 loading and sample staining procedure for simultaneous measurement of intracellular Ca2+]

Category: Immunology: T Cell Protocols

Describes generating CTL against some commonly used target antigens. Two methods for the quantitation of CTL activity are described based on the two pathways used bt CTL to kill target cells. In one pathway, they release lytic granules containing perforin and granzymes, leading to apoptosis and target cell lysis. In a second pathway, they trigger apoptosis via Fas/Fas ligand interactions. - [Read Induction and Measurement of Cytotoxic T Lymphocyte Activity Protocol]

Category: Plant Biology Protocols: Arabidopsis Genetics Protocols

Protocol for the isolation of Arabidopsis nuclei and measurement of gene transcription rates using nuclear run-on assays. Plant materials are ground in hexylene glycol-based buffers and highly enriched nuclear fractions are obtained using Percoll density gradients. Standard and small-scale protocols are presented, along with a tested method for nuclear run-on assays. The entire process may be completed within 3 days. - [Read Isolation of Arabidopsis Nuclei and Measurement of Gene Transcription Rates Protocol]

Category: Reporter Gene Assays: Luciferase Assay Protocols

Luciferase assay using a 24 well plate. Includes: Cell Lysis; Reagent Preparation; Luminescence measurement; Wash injector; Protein quantitation; Data Analysis. - [Read Luciferase Assay 24 Well Plate (Promega System)]

Category: Cell Biology and Cell Culture: Apoptosis Protocols: Apoptosis Analysis

Measurement of Apoptosis and Other Forms of Cell Death. Jagan Muppidi, Melissa Porter, and Richard M. Siegel. As programmed cell death (PCD) or apoptosis has emerged as an important regulator of development and homeostasis in multicellular organisms, methods to quantify apoptosis and to distinguish it from necrosis have been developed. This unit presents a set of assays for these purposes, many of which are technically very simple and ideally suited to the study of hematopoietic cells. - [Read Measurement of Apoptosis and Other Forms of Cell Death]

Category: Reporter Gene Assays: Cat Assays Protocols

In this protocol, extracts prepared from cells transfected with a chloramphenicol acetyltransferase (CAT) reporter plasmid are incubated with radiolabeled chloramphenicol. The acetylated products generated by the action of CAT are separated from the unmodified drug by thin-layer chromatography and quantitated by scraping the spots from the thin-layer plates and counting them by scintillation spectroscopy. - [Read Measurement of CAT in Extracts of Mammalian Cells Using Thin-layer Chromatography]

Category: Cell Biology and Cell Culture: Cell Adhesion Protocols

Many proteins and molecules promote cell adhesion including several cell surface carbohydrate binding proteins. Cell adhesion measurements on 96-well microtiter plate format are difficult due to the shear forces generated by washing the wells. The protocol here introduces the use of a liquid-filled wash chamber that separates unbound cells by gravity. This eliminates uncontrolled shear forces and passage of adherent cells through a liquid/air interface. John L. Magnani~GlycoTech Corporation. - [Read Measurement of Cell Adhesion Under Static Conditions]

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols: DNA Staining Protocols for Flow Cytometry

This protocol describes a method for quantitative measurement of DNA using propidium iodide (PI) staining and flow cytometry. PI stains all double-stranded regions of both DNA and RNA by intercalating between the stacked bases of the double helix. PI cannot penetrate an intact cell membrane; therefore, cells are fixed prior to staining. The ethanol-fixed cells can be stored unstained at 4°C for days, or even weeks, and then stained and analyzed. - [Read Measurement of DNA Content Using Propidium Iodide (PI) Staining of Fixed Whole Cells Protocol]

Category: Reporter Gene Assays: GFP Assay Protocols

Protocol measuring the amount of GFP expression and DNA content in permeabilized cells. Includes: Fix cells with formaldehyde; Permeabilize cells with ethanol; Preparation of Buffered 2% Formaldehyde Solution. - [Read Measurement of GFP Expression and DNA Content in Permeabilized Cells]

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols: Flow Cytometry Data Analysis Protocols

Protocol for the measurement of GFP expression and DNA content in permeabilized cells. Includes: Fix cells with formaldehyde; Permeabilize cells with ethanol; Preparation of Buffered 2% Formaldehyde Solution. - [Read Measurement of GFP Expression and DNA Content in Permeabilized Cells Protocol]

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols: Flow Cytometry Data Analysis Protocols

Protocol for measurement of green fluorescent protein expression and DNA content in unfixed cells. - [Read Measurement of Green Fluorescent Protein Expression and DNA Content in Unfixed Cells Protocol]

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols

The more commonly available single-laser cytometers can also be used to measure multicellular conjugates, but due to overlaps in emission spectra, the extent of labeling cells with fluorophores must be controlled much more carefully when the single-laser machines are used. This protocol describes the labeling of cells and analysis of conjugates with either dual-laser or single laser flow cytometers. - [Read Measurement of Intercellular Conjugates by Flow Cytometry Protocol]

Category: Signalling Signal Transduction Protocols: Calcium Measurement Protocols

Phenomenal review of the methods and references to intracellular calcium measurements. TAKAHASHI et al Phys. Rev. 1999 - [Read Measurement of Intracellular Calcium PDF]