Riboprobe Hybridization
Riboprobe Hybridization - Related Videos
08:00
Whole-Mount In Situ Hybridization
0 Views •
2023
Whole-mount in situ hybridization (WMISH) is a common technique used for visualizing the location of expressed RNAs in embryos. In this process, synthetically produced RNA probes are first complementarily bound, or "hybridized," to the transcripts of target genes. Immunohistochemistry or fluorescence is then used to detect these RNA hybrids, revealing spatial and temporal patterns of gene expression. Unlike traditional in situ hybridization techniques, which require thin tissue sections whose...
06:19
In situ Protocol for Butterfly Pupal Wings Using Riboprobes
0 Views •
Cited by 8 •
2007
In order to examine gene expression in the pupal wing tissue of Bicyclus anynana, we present an optimized protocol for in situ hybridizations using riboprobes. We also provide guidelines for the further optimization of this protocol for use in pupal wings of other Lepidopteran species.
07:33
A Whole Mount In Situ Hybridization Method for the Gastropod Mollusc Lymnaea stagnalis
0 Views •
Cited by 17 •
2016
The goal of this protocol is to provide users with a set of methods for the high-throughput decapsulation of Lymnaea stagnalis embryos and larvae in preparation for whole mount in situ hybridization, and for subsequent pre- and post-hybridization treatments.
03:24
Hybridization of Atomic Orbitals I
0 Views •
2020
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
03:35
Hybridization of Atomic Orbitals II
0 Views •
2020
sp3d and sp3d 2 Hybridization To describe the five bonding orbitals in a trigonal bipyramidal arrangement, we must use five of the valence shell atomic orbitals (the s orbital, the three p orbitals, and one of the d orbitals), which gives five sp3d hybrid orbitals. With an octahedral arrangement of six hybrid orbitals, we must use six valence shell atomic orbitals (the s orbital, the three p orbitals, and two of the d orbitals in its valence shell), which gives six sp3d 2 hybrid orbitals.
FAQs
Hybridization conditions determine how selectively a riboprobe remains associated with its target. The probe forms a stable interaction when its RNA sequence is complementary to the nucleic acid being examined, while the surrounding conditions are controlled to favor the intended pairing. Adjusting these conditions therefore affects whether detection reflects a specific target rather than incidental binding.
Labeling gives the bound probe a detectable signal, but signal alone does not establish specificity. Washing is therefore essential because it removes probe that remains unbound or interacts nonspecifically, leaving the retained label associated more closely with complementary target sequences. The effectiveness of this separation influences how confidently researchers interpret a signal as evidence of the target gene or transcript.
In situ riboprobe hybridization preserves the sample’s spatial context, so detection can show which cells or tissue regions contain a transcript. A membrane-based assay instead examines extracted material on a membrane and is suited to determining whether the target RNA is present in that sample. The central distinction is biological context: location within tissue versus detection in an isolated preparation.
A typical workflow begins with a biological sample and exposure to a labeled RNA probe under controlled hybridization conditions. The sample is then washed to remove unbound and nonspecifically bound probe, followed by signal detection. For in situ work, the sample remains organized as cells or tissue; membrane-based work uses extracted material, changing what the result can show.
This technique is useful when researchers need to connect a particular gene or transcript with a biological setting. Applications described for the method include developmental studies, identification of cell types, investigation of infectious disease, and analysis of gene regulation. Depending on the assay format, it can associate target presence with either tissue location or extracted sample content.
A detected signal identifies the distribution or presence of the complementary target in the tested material. In an in situ experiment, its location can reveal where gene expression occurs within cells or tissues. In a membrane-based assay, the result indicates target RNA in extracted material. These outcomes help relate transcript presence to biological structure and function.