PBV Detection Primers and Probes for Respiratory Specimens
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Solution Overview
Problem
Current methods for detecting picobirnavirus (PBV) are limited by high genetic diversity and the need for specific primers that effectively target the RNA-dependent RNA polymerase (RDRP) region, with existing degenerate primer sets yielding limited success and reliance on biased next-generation sequencing (NGS) for detection, particularly in respiratory specimens where PBV's role in disease is increasingly recognized.
Innovation Solution
Development of specific nucleic acid probes and primers with 80% or more sequence identity to designated sequences for amplifying and detecting PBV, including forward and reverse primers and probes, to enhance detection sensitivity and specificity in various samples, including respiratory specimens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If degenerate primer sets are used for PBV detection, then detection coverage is improved, but detection precision deteriorates due to limited success and biased NGS requirements
Solution Approach 1:
The patent applies local quality by designing primers and probes that specifically target conserved regions within the RDRP gene of PBV. Instead of using broad degenerate primers that cover all PBV variants, the invention focuses on localized conserved sequences that provide both specificity and coverage of clinically relevant strains, thereby improving detection precision while maintaining adequate versatility
Solution Approach 2:
The patent employs parameter changes by optimizing primer and probe sequences based on empirical data from respiratory specimens. The sequences were refined through iterative testing to achieve optimal binding characteristics, including adjusted melting temperatures, GC content, and length parameters, which enhanced both detection precision and coverage of PBV strains in respiratory samples
2Adaptability or versatility
If existing detection methods are used, then general PBV detection is possible, but diagnostic accuracy deteriorates due to high genetic diversity and biased detection approaches
Solution Approach 1:
The patent applies segmentation by dividing the PBV detection strategy into multiple components: forward primers, reverse primers, and fluorescent probes, each optimized for specific conserved regions of the RDRP gene. This segmented approach allows simultaneous targeting of multiple conserved sites, improving diagnostic accuracy by reducing false negatives caused by genetic diversity while maintaining broad detection capability
Solution Approach 2:
The patent uses fluorescently labeled probes as intermediaries between the target PBV RNA and the detection system. These probes hybridize to specific conserved sequences and provide fluorescent signals that enable precise detection. The intermediary probes act as mediators that enhance diagnostic accuracy by providing specific recognition of PBV sequences despite genetic diversity, while the fluorescent signal enables sensitive detection
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution enables effective amplification and detection of PBV in samples, improving diagnostic accuracy and expanding our understanding of PBV's role in respiratory illnesses by overcoming the limitations of existing methods with high genetic diversity and biased detection approaches.
Implementation Method 1
the probe comprises a sequence with 80% or more sequence identity to SEQ ID NO: 6, SEQ ID NO: 9, or complements thereof
Implementation Method 2
compositions for amplifying PBV in a sample
Data Source
AI summary
Provided herein are compositions, methods, and kits for detecting human picobirnavims (PBV). In certain embodiments, provided herein are PBV specific nucleic acid probes and primers, and methods for detecting PBV nucleic acid.