Pcr Hybridization
Pcr Hybridization - Related Videos
10:15
Multiplex PCR and Reverse Line Blot Hybridization Assay (mPCR/RLB)
0 Views •
Cited by 21 •
2011
An inexpensive, high throughput method for simultaneous detection of up to 43 molecular targets is described. Applications of mPCR/RLB include microbial typing and detection of multiple pathogens from clinical samples.
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...
05:11
Wild-Type Blocking PCR to Detect Low-Frequency Somatic Mutations
0 Views •
2025
This video describes wild-type blocking polymerase chain reaction, or WTB-PCR, which detects somatic mutations. The PCR-based technique uses a locked nucleic acid, or LNA, an oligonucleotide that binds to its complementary wild-type allele and blocks its elongation. The blocking selectively allows the amplification of low-level mutant alleles over their wild-type variants in the sample.
08:51
Genotyping of Staphylococcus aureus by Ribosomal Spacer PCR (RS-PCR)
0 Views •
Cited by 9 •
2016
Here, ribosomal spacer PCR (RS-PCR) is used together with a miniaturized electrophoresis system as a fast and high resolution method for genotyping S. aureus at moderate costs allowing a high throughput.
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
The probe-based stage adds a sequence-recognition checkpoint after amplification. A labeled or sequence-specific probe binds when its nucleic-acid sequence is complementary to the amplified target under selected conditions. Consequently, detection depends not only on generating many copies, but also on confirming that those copies contain the expected sequence, improving discrimination in complex clinical samples.
Hybridization conditions determine how selectively a probe binds its target. When conditions are controlled appropriately, complementary sequences are favored over mismatched sequences, allowing closely related organisms, genes, or variants to be distinguished. This selectivity is especially important when a clinical sample contains genetic material from multiple sources and amplification alone would not provide enough identification detail.
PCR amplification and hybridization answer different analytical questions. Amplification generates many copies of a selected region, whereas probe binding tests whether those copies match a complementary sequence. Using both stages can provide more specific identification than relying on amplification alone, particularly when distinguishing related organisms or examining a defined gene or sequence variant.
First, repeated denaturation, primer annealing, and DNA extension cycles amplify the selected region. The resulting amplicons then undergo hybridization with a labeled or sequence-specific probe under controlled conditions. Interpretation centers on whether the probe binds the amplified material, linking successful target amplification with sequence-specific recognition. This workflow supports identification rather than amplification alone.
In infection research, the approach supports pathogen detection and strain characterization in complex clinical samples. Probe recognition helps assess whether amplified material corresponds to a particular organism or sequence, while the amplified target supplies material for that assessment. The combined result can help distinguish closely related organisms and support characterization based on selected genetic markers.
In immunology and infection studies, PCR hybridization can target virulence markers, resistance markers, or host and microbial genes involved in immune responses. The selected sequence determines the biological question: a pathogen-associated target supports detection or characterization, whereas a host or microbial immune-response gene connects the assay to analysis of immune-related genetic features.