specificity Protocols

Category: Bioinformatics

Using AFPredictor, it was demonstrated that ‘ordered surface carbons’ (OSCs) are a distinguishing feature of AFPs and, more specifically, their ice-binding surfaces. AFPredictor identified AFPs from within a large set of structures with greater than 99% specificity. Furthermore, it was used to identify a novel ice-binding protein by screening a library of homology modeled structures based on cDNA sequences obtained from cold-acclimated winter rye (Secale cereale). - [Read A Computational Screening protocol for Antifreeze/Ice-Structuring Proteins]

Category: PCR Protocols: Reverse Transcriptase RT-PCR Protocols

Protocol uses a single thermostable RNA polymerase to perform high-specificity RT-PCR.  A high-temperature RT reaction is followed by PCR amplification of the cDNA using a single thermostable poymerase, the GeneAmp AccRT RNA PCR enzyme from Applied Biosystems.  The high temperature of the RT reaction enhances the specificity of primer binding and also reduces secondary structure in the template, thereby increasing the efficiency of polymerization. - [Read Amplification of RNA: High-Temperature Reverse Transcription and DNA Amplification with a Magnesium]

Category: Protein Protocols: Protein Phosphorylation Protocols

Paper describing methods for monitoring kinase activity, investigating kinase–substrate specificity, examining phosphorylation in planta and the determination of phosphorylation sites in a protein. In addition, strategic considerations for experimental design and variables will be discussed. Scott C. Peck, the Plant Journal. - [Read Analysis of protein phosphorylation: methods and strategies PDF]

Category: Genetics and Genomics: Cancer Genetics Protocols

Detailed, step-by-step protocol of the MethyLight assay for detection of CIMP with high sensitivity and specificity in colorectal cancer using a five marker panel composed of CACNA1G, IGF2, NEUROG1, RUNX3 and SOCS1. - [Read Determination of the CpG Island Methylator Phenotype (CIMP) in Colorectal Cancer using MethyLight]

Category: Nucleic Acid Modification Protocols: DNA Methylation Protocols

Determination of the CpG Island Methylator Phenotype (CIMP) in colorectal cancer using MethyLight. Protocol describes a detailed, step-by-step protocol of the MethyLight assay for detection of CIMP with high sensitivity and specificity in colorectal cancer using a five marker panel composed of CACNA1G, IGF2, NEUROG1, RUNX3 and SOCS1. - [Read Determination of the CpG Island Methylator Phenotype (CIMP) in colorectal cancer using MethyLight]

Category: PCR Protocols: Real-Time PCR Protocols

Protocol provides a detailed, step-by-step protocol of the MethyLight assay for detection of CIMP with high sensitivity and specificity in colorectal cancer using a five marker panel composed of CACNA1G, IGF2, NEUROG1, RUNX3 and SOCS1. - [Read Determination of the CpG Island Methylator Phenotype (CIMP) in colorectal cancer using MethyLight]

Category: PCR Protocols: PCR Optimization

Method for amplifying DNA enzymatically by the polymerase chain reaction (PCR), including procedures to quickly determine conditions for successful amplification of the sequence and primer sets of interest, and to optimize for specificity, sensitivity, and yield.  The first step of PCR simply entails mixing template DNA, two appropriate oligonucleotide primers, Taq or other thermostable DNA polymerases, deoxyribonucleoside triphosphates (dNTPs), and a buffer. - [Read Enzymatic Amplification of DNA by PCR: Standard Procedures and Optimization Protocol]

Category: Antibody Protocols: Epitope Mapping Antibody Protocols

The simplest way to determine whether two monoclonal antibodies bind to distinct sites on a protein antigen is to carry out a competition assay. The assay can be used with antibodies that bind both conformational and linear epitopes, and it is most useful in the analysis of monoclonal antibody specificity because polyclonal sera typically recognize multiple different epitopes. - [Read Epitope Mapping by Competition Assay Protocol]

Category: Immunology: T Cell Protocols

T cell hybridomas can be obtained by fusing activated T cells with tumor cells. A heterogeneous population of hybridomas can be cloned by limiting dilution to obtain hybridomas that express specificity to one T cell receptor (TCR). Protocol describes cell fusion and selection of T cell hybridomas. A protocol is provided for screening of T cell hybridomas for expression of the CD3-TCR complex by flow cytometry analysis. - [Read Production of Mouse T Cell Hybridomas Protocol]

Category: Plant Biology Protocols: Arabidopsis Protein Peptide Protocols

Coimmunoprecipitation is one of the most useful techniques for revealing protein-protein interactions. Good negative controls to verify the specificity of the coimmunoprecipitation procedure are (1) performing the same immunoprecipitation experiment using beads coupled to the preimmune serum and (2) probing the Western blot with antibodies against protein known not to interact with the coimmunoprecipitated proteins under physiological conditions. - [Read Protein Coimmunoprecipitation in Arabidopsis Protocol]