microbiology Protocols

Category: Molecular Biology Protocols: Restriction Enzyme Digestion

DNA digestion protocol & hints. Procedure and tips for restriction digestion. Doering laboratory, Department Molecular Microbiology, Washington University Medical School. - [Read DNA digestion protocol & hints PDF]

Category: Molecular Biology Protocols: DNA Ligation Protocols

Insertion of DNA into Plasmid Vectors, Insertion of DNA into l Phage Vectors, Self-Circularization of Linear DNA (Intramolecular Ligation), Linker (Adaptor) Ligation. Alam's Lab Univ Hawaii. - [Read DNA Ligation Protocol from Takara Shuzo Co.]

Category: Protein Protocols: Western Blot Protocol

ENZYME-ASSISTED IMMUNOELECTROBLOTTING (IEB OR WESTERN BLOTTING. E.P. Rybicki and Maud Purves. Department of Microbiology. Copper Staining of Gels, Indirect enzyme immunoassay, Staining Proteins on Membranes, Blotting Buffer, Staining of proteins in gels - [Read ENZYME-ASSISTED IMMUNOELECTROBLOTTING (IEB OR WESTERN BLOTTING)]

Category: Staining Protocols: Gram Staining Protocols

Gram-positive and Gram-negative organisms form a complex of crystal violet and iodine within the bacterial cell during the Gram-staining procedure. Gm+ organisms are thought to resist decolorization by alcohol or acetone because cell wall permeability is markedly decreased when it is dehydrated by these solvents. Thus, the dye complex is entrapped within the cell, resist being washed out by the solvents, and Gm+ bacteria remain purple following this differential stain. - [Read Gram Staining Protocol]

Category: Bacterial Protocols

Ice tea has a complex composition, which leads to reduced filterability, and a decrease in sample throughput. Its composition can generate background or false positive signals. It is also well known that ice tea contains molecules that can inhibit the bioluminescence reaction, which can generate false negative results. The aim of this study was to develop a protocol that was able to neutralize these affects and enable faster detection of contamination. - [Read Microbial Detection in Ice Tea Using the Millipore Milliflex Rapid Microbiology Detection System]

Category: Transfection Protocols: Electroporation Sonoporation Protocols

Protocol for the transformation of e. coli by electroporation. - [Read Protocol Transformation of E. coli by Electroporation]

Category: Protein Protocols: Protein Electrophoresis: SDS-PAGE Electrophoresis Protocols

SDS POLYACRYLAMIDE GEL ELECTROPHORESIS (SDS-PAGE). Ed Rybicki and Maud Purves. Dept Microbiology, University of Cape Town. PROTOCOL includes: Assembling Gel Apparatus, Resolving Gels, Stacking Gels, Electrophoresis buffer, Sample Preparation for Sds-page and Staining of Gels. - [Read SDS POLYACRYLAMIDE GEL ELECTROPHORESIS (SDS-PAGE)]

Category: Viral Culture and Isolation Protocols: Viral Culture Protocols

When an individual bacterial virus grows in a bacterial host suspended in a top agar lawn, its progeny infect and lyse the surrounding host cells. This causes the appearance of a "hole" or plaque in the otherwise homogeneous bacterial lawn. Since each plaque represents a single virus, the number of viruses in the aliquot added to the plate is equal to the number of plaques which appear. - [Read Titering of Bacterial Viruses Protocol]

Category: DNA Protocols: TOPO Cloning

Zero Blunt TOPO PCR Cloning Kit, Detailed protocol. (Invitrogen Life technologies). Alam Lab. Department of Microbiology, University of Hawai'i. - [Read Zero Blunt TOPO PCR Cloning Kit Protocol]