Engineering guidelines for CRISPR diagnostics

Area of Science:

• Biotechnology
• Molecular Biology
• Biochemistry

Background:

• CRISPR-Cas enzyme kinetics are crucial for assay development.
• Inconsistent reporting and calibration errors plague current CRISPR studies.
• Insufficient data hinders reproducibility and validation of CRISPR assays.

Purpose of the Study:

• To review engineering guidelines for CRISPR assay design.
• To address errors in kinetic rate constant reporting and experimental practices.
• To provide recommendations for improving CRISPR assay calibration and data reporting.

Main Methods:

• Review of state-of-the-art CRISPR kinetics studies.
• Analysis of reported kinetic rate constants and experimental data.
• Guidelines for fluorescence-based CRISPR assay calibration.
• Summary of microfluidic applications and their criticisms.

Main Results:

• Widespread gross errors exist in reported kinetic rate constants for CRISPR-Cas enzymes.
• Many studies lack sufficient data for consistency checks or calibration assessment.
• Incorrect calibration of fluorescence-based assays contributes to significant errors.
• Enzymatic kinetics and reporter degradation limit assay sensitivity.

Conclusions:

• Adherence to proper experimental procedures and signal calibration is critical for CRISPR assay development and diagnostics.
• Standardized guidelines are needed to improve the reliability and accuracy of CRISPR assay reporting.
• Addressing calibration issues and understanding kinetic limitations will enhance CRISPR assay sensitivity and application.