How does fluorescent protein tagging work?
Generally, fluorescent tagging, or labeling, uses a reactive derivative of a fluorescent molecule known as a fluorophore. The fluorophore selectively binds to a specific region or functional group on the target molecule and can be attached chemically or biologically.
What is tdTomato reporter?
pDD-tdTomato Reporter is sold as part of the DD-tdTomato Reporter System (Cat. No. 632190). pDD-tdTomato Reporter is a promoterless vector that can be used to monitor transcription from different promoters and promoter/enhancer combinations inserted into the multiple cloning site (MCS).
What is fluorescent protein used for?
Fluorescent proteins can be used to visualize any type of cancer process, including primary tumour growth, tumour cell motility and invasion, metastatic seeding and colonization, angiogenesis, and the interaction between the tumour and its microenvironment (tumour–host interaction).
What is TdTomato used for?
Tandem dimer Tomato (tdTomato) provides a useful alternative to enhanced green fluorescent protein (eGFP) for performing simultaneous detection of fluorescent protein in histological sections together with fluorescence immunohistochemistry (IHC).
How big is EGFP?
26.9 kDa
EGFP
| Oligomerization | Organism | Molecular Weight |
|---|---|---|
| Weak dimer | Aequorea victoria | 26.9 kDa |
Why fluorescent tagging is used in biology?
These tags have revolutionized cell biology by allowing nearly any protein to be imaged by light microscopy at submicrometer spatial resolution and subsecond time resolution in a live cell or organism. They can also be used to measure protein abundance in thousands to millions of cells using flow cytometry.
Where do fluorescent proteins come from?
The original green fluorescent protein (GFP) was discovered back in the early 1960s when researchers studying the bioluminescent properties of the Aequorea victoria jellyfish isolated a blue-light-emitting bioluminescent protein called aequorin together with another protein that was eventually named the green- …
Is TdTomato the same as mCherry?
The tandem dimer tdTomato is equally photostable but twice the molecular weight of mCherry, and may be used when fusion tag size does not interfere with protein function. mStrawberry is the brightest red monomer, but it is less photostable than mCherry, and should be avoided when photostability is critical.
What is tdTomato used for?
What makes a fluorescent protein bright?
Two key properties of fluorophores that determine brightness are the extent to which the excitation light is absorbed and the efficiency by which absorbed photons are converted into emitted photons. These are indicated by the extinction coefficient (EC) and quantum yield (QY) respectively.