Ova-texas Red
Ova-texas Red - Related Videos
01:23
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Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
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Here we present techniques to measure red cell deformability and cellular heterogeneity by ektacytometry. These techniques are applicable to general investigations of red cell deformability and specific investigations of blood diseases characterized by the presence of both rigid and deformable red cells in circulation, such as sickle cell anemia.
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In this protocol, we developed a cationic nanoemulsion-encapsulated retinoic acid (RA) to be used as an adjuvant to promote antigen-specific systemic and mucosal responses. By adding the FDA-approved RA to the nanoemulsion, antigen-specific sIgA was promoted in the vagina and small intestine after intramuscular injection of the nanoemulsion.
03:37
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10:27
Controlled Microfluidic Environment for Dynamic Investigation of Red Blood Cell Aggregation
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Cited by 8 •
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The protocol described details an experimental procedure to quantify Red Blood Cell (RBC) aggregates under a controlled and constant shear rate, based on image processing techniques. The goal of this protocol is to relate RBC aggregate sizes to the corresponding shear rate in a controlled microfluidic environment.
FAQs
Texas Red provides the optical readout by emitting detectable light after excitation at an appropriate wavelength. This allows researchers to distinguish locations containing the labeled protein from surrounding biological material during fluorescence microscopy or other imaging approaches. The signal therefore converts the protein’s cellular distribution into an observable pattern without relying only on indirect measurements.
The ovalbumin component preserves the model antigen’s recognition and uptake properties, enabling cells to handle the labeled material in a biologically relevant way. Once taken up, its movement can be followed through intracellular trafficking and processing. This combination lets researchers study transport while retaining ovalbumin’s established identity as a model protein.
Retaining ovalbumin’s basic identity helps the fluorescent signal represent the behavior of a model antigen rather than an unrelated marker. Texas Red adds visibility, while the protein remains suitable for examining cellular uptake, transport, and processing. This makes observed localization more relevant to studies of how cells handle antigenic proteins.
Fluorescent localization can show where the labeled antigen is relative to immune cells and how those cells handle it after uptake. Researchers can use the resulting signal to investigate interactions associated with endocytosis, intracellular trafficking, and antigen processing. These observations provide a visual connection between antigen location and immune-cell function.
An imaging approach uses excitation of the Texas Red label followed by detection of emitted light through fluorescence microscopy or another suitable imaging method. The resulting observations can reveal where the protein is located and how its distribution relates to cellular transport. This supports analysis of uptake and movement within biological systems.
The tracer is suited to questions about how cells internalize a model antigen, where that antigen travels intracellularly, and how it undergoes processing. It also supports investigations of protein interactions with immune cells. By combining antigen behavior with visible fluorescence, the approach links molecular transport to broader studies of immune-system function.