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Laboratory Protocols & SOPs Library

3,200+ step-by-step lab protocols and SOPs for cell culture, staining, PCR, protein work and microbiology, with reagents, conditions and evaluation criteria.

3228 articles
Laboratory Protocols & SOPs Library

Immunoprecipitation Protocol for Native Proteins

Immunoprecipitation of natural proteins is a classic method for studying natural protein interactions, which relies on the specific binding between antibodies and proteins (antigens). This technique can be used to qualitatively detect proteins, determine the physiological role of proteins in ...

2025-06-10 03:33:57 Updated
Laboratory Protocols & SOPs Library

Protocol of Western blot for Phosphorylated Proteins

Phosphoprotein western blot is a widely used technique for detecting and analyzing the phosphorylation status of proteins, which is essential for understanding various biological processes and signal transduction pathways. Some common application scenarios include signal transduction research, ...

2025-06-10 03:33:57 Updated
Laboratory Protocols & SOPs Library

BN-PAGE Protocol

Blue native polyacrylamide gel electrophoresis (BN-PAGE) is an electrophoretic technique used to separate and analyze large protein complexes. It preserves protein complexes in their native state under non-denaturing conditions by treating samples with mild detergents and negatively charged dyes ...

2025-06-10 03:33:57 Updated
Laboratory Protocols & SOPs Library

E. coli Competence Protocol for Plasmid Transformation

Plasmid transformation is a commonly used technique in molecular biology that introduces foreign plasmid DNA into host cells such as E. coli, enabling gene cloning, gene expression, and other genetic manipulations. Competent E. coli cells are made more permeable to plasmid DNA through physical ...

2025-06-10 03:33:57 Updated
Laboratory Protocols & SOPs Library

Western Blotting with Fluorescently Labeled Antibodies

For western blotting, incubate the membrane with primary antibody diluted in 1×TBST (0.1% Tween®20) containing 5% w/v BSA or nonfat dry milk overnight at 4°C on a shaker. Please refer to the primary antibody product webpage for recommended primary antibody dilution buffer and antibody dilution.

2025-06-10 03:33:57 Updated
Laboratory Protocols & SOPs Library

General Protocol for Western Blotting

Western blotting is a technique that uses specific antibodies to separate proteins and is widely used to analyze the expression of specific proteins in cell or tissue extracts. This protocol details the steps for performing western blotting of cell culture and tissue samples using both ...

2025-06-10 03:33:56 Updated
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