GB/T 41799-2022 in English

VALID

Assay method of restriction endonuclease impurity

Issued on:2022-10-12
Implemented on:2023-05-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	GB/T 41799-2022
Document status:	VALID
Title in English:	Assay method of restriction endonuclease impurity
Title in Chinese:	限制性核酸内切酶杂质检测方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-10-12
Implemented on:	2023-05-01
ICS Classification:	07.080-Biology. Botany. Zoology
Chinese Classification:	C27-Biological agent and blood products
Professional Classification:	GB-National Standard
Related Keywords:	restriction endonuclease impurity introductionin-depth interpretation assay method two-way quality control system attentionenzyme digestion system appearsexonucleasewhite spot/blue spot ratio
Related Topics:	enzyme nucleic acid Impurities Impurity detection Impurity detection mass spectrometer Mass spectrometry + enzyme + Impurities in English Hydrolase Impurity method Enzyme Impurity Linearity Rapid detection of chitinase activity Enzyme detection Impurity Linearity Volt-ampere + detection limit Impurities linear several Impurity detection. mass spectrometer limit method limit Impurity standardization method Bromine impurity detection flow detection limit endonuclease Quality inspection method Endonuclease Impurity limit peak detection limit restriction enzyme Automatic Nucleic Acid Detection Enzyme analysis and detection method Impurity standardization method t7 endonuclease Impurity peak + linear The detection limit is 20 times within a batch Detection of impurities restriction endonuclease About Detection Limits Liquid phase method impurities impurity limit sample Nucleic acid hybridization instrument Nucleic acid hybridization instrument Nucleic acid detection box intracellular enzyme Enzymes in the human body holoenzyme Intra-assay detection limit Detection method limit Molecular detection Nucleic acid detection Molecular nucleic acid detection restriction endonuclease 4 degrees restrictive Closed Beta Restrictions Nucleic acid hybridization box Nucleic acid hybridization box Component impurity detection enzyme tube quality testing method limit various nucleases Method for detecting acidity nucleic acid polymerase nucleic acid polymerase Water quality testing at home and abroad Phosphoric acid impurity nucleic acid amphiphile single-stranded endonuclease Cut inside v1 nuclease endonuclease Enzyme mass spectrometry Micro nucleic acid detection nuclease s1 Method Qualitative Limit Impurity Determination Calculation Method s1 endonuclease restriction endonuclease Substance detection limit Water Quality Method Detection Limit Internal standard method detection endonuclease Detection of impurity components Detection of impurity components Detection of impurities s1 endonuclease enzyme restriction endonuclease Domestic mass spectrometry detection How to use the enzyme s1 nuclease Nucleic acid detection window period Meganuclease About nucleic acid testing abroad nuclease method Oleic acid detection method ts enzyme assay Micro nucleic acid detection How to detect impurities Impurity standard Impurity limit Nucleic acid detection window period How to detect nucleic acid Phytase detection non-specific endonuclease Enzyme contamination non-restrictive nuclease Impurity detection method Impurity detection method Three classes of restriction endonucleases type III restriction enzyme single chain endonuclease restriction endonuclease Nucleic acid system s1 nuclease enzyme for nucleic acid hybridizationautomatic single-stranded endonuclease Acid type restriction endonuclease DNA enzyme detection method Water Quality Method Limits Phosphatase detection method Digestion GBT41799 GB/T 41799-2022 Quality Control of Endonucleases endoreduplication The difference between liquid quality detection limit and quantification limit The difference between nucleic acid mass spectrometry and sequencing Microplate reader stability testing method Enzyme fragmentation Enterprise voc detection limits RRT for impurity testing Plasmid digestion Mass spectrometry detection limit hiv nucleic acid detection method SI nuclease Temperature detection limit FID detection limit PKC enzyme expression detection Enzyme testing ingredients Inner Mongolia water quality testing Method for determination of phenylalanine impurities Preparation and method of antibody enzyme Magazine determination limit verification method Impurity Limit Quantitative Method Method for detecting impurities on rubber block surface Nucleic acid integrity detection method Preparation method of antibody enzyme Preparation of bird's nest acid by enzymatic hydrolysis method Water quality equipment detection limit test method Water quality tetracarboxylic acid detection method Limit detection method of impurities using ultraviolet spectroscopy How to express impurity limits Genotoxic impurity method development Impurity Control Methods Acid value detection method Restriction enzyme activity assay method Method for detecting endogenous fluorescence using microplate reader Ethanol organic impurity detection method Mass spectrometry method for detecting lactic acid Method Detection Limit Agilent What are the methods for detecting impurities? Common testing methods for impurities Acid resistance test Methods for breaking down nucleic acids Ligustilide detection method Nucleic acid detector industry Device nuclease removal method Nucleic acid mass spectrometry experimental methods Pharmacopoeia method for acid value detection Impurity detection method robustness Lysosomal acid lipase detection method Enzyme preparation method Limitations of testing methods Acid mist online detection method Impurity Analysis for the Nuclear Industry Detection limit calculation method Detection methods for impurities in rice Quartz sand impurity detection method Nucleic acid mass spectrometry experimental methods Restriction endonuclease selection methods The method detection limit is higher than the mass limit Nucleic acid color development method Water quality method detection limit Enzyme liquid impurity removal method Detection methods for impurity proteins and nucleic acids Genotoxic impurity detection methods Detection method of amino acids in lysosomes Detection lower limit calculation method Calculation method for impurities of preparation-related substances Classification of nucleic acid molecular hybridization methods Restriction enzyme digestion method Methods for detecting impurities in pharmaceutical liquids Commonly used wavelength microplate reader detection methods Nuclear pollution detection water quality detection method Gas impurity detection How to operate nucleic acid molecule hybridization Acid mist detection method Organic acid detection method Nucleic acid purification methods Intracellular amino acid detection method Rubidium iodide impurity detection How to calculate the detection limit of detection method Preparation method of solid enzyme Method detection limit detection and calculation process Single impurity test method Tuberculosis nucleic acid detection method Method for Determination of Amino Acid Amphoteric Properties

《GB/T 41799-2022限制性核酸内切酶杂质检测方法》由SWG11（全国工具酶标准化工作组）归口，主管部门为国家标准化管理委员会。

Introduction

In-depth interpretation of technical principles

Restriction endonucleases specifically recognize the BamHI site of double-stranded DNA, and impurities are verified by over-digesting λDNA and ФX174DNA:

λDNA is completely digested at 5 sites to produce 6 characteristic bands
ФX174DNA should not theoretically have degradation bands

Analysis of key detection processes

Test object	Positive index	Negative index
Endonuclease	Difference between lanes 1# and 2# is less than 15%	Pollution is determined when characteristic outer band appears
Exonuclease	White spot/blue spot ratio is less than 1/9	Tube 5# ratio ≥10% requires re-inspection

Key indicators of instruments and equipment

According to the standard requirements, the following equipment is required: electrophoresis instrument, 0.01mg precision balance, UV transmittance analyzer, and the accuracy of temperature control equipment should reach ±0.5℃.

Implementation suggestions and points for attention

Enzyme digestion system needs to set up 3 levels of gradient concentration control
Extremely long enzyme digestion is recommended to be ≥12h to verify stability
PUC19 double parallel system is used in transformation experiment

Typical misjudgment case analysis

Phenomenon	Solution
Electrophoresis band is blurred	Check whether the pH value of TAE buffer meets the standard
Low ligation efficiency	Verify the storage conditions of T4 ligase

Standard evolution and industry value

This standard establishes a two-way quality control system for tool enzymes for the first time:

DNA integrity analysis accuracy is improved by 5 times
Quantitative interpretation limit is clarified
Establish a gold standard for transformation verification

More samples: QC/T 942-2021 DL/T 5154-2012 GB 50021-2001(2009)

Sample only — not a preview of GB/T 41799-2022

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