Crab duplex-specific nuclease

Crab duplex-specific nuclease is a nuclease derived from the red king crab (Paralithodes camtschaticus, kamchatka crab) hepatopancreas that displays a strong preference for cleaving double-stranded DNA and DNA in DNA–RNA hybrid duplexes, compared to single-stranded DNA. Moreover, the cleavage rate of short, perfectly matched DNA duplexes by this enzyme is essentially higher than that for non-perfectly matched duplexes of the same length. It has been applied to SNP detection[1] and RNA normalization.[2]

References

Shagin, DA; Rebrikov, DV; Kozhemyako, VB; Altshuler, IM; Shcheglov, AS; Zhulidov, PA; Bogdanova, EA; Staroverov, DB; Rasskazov, VA; Lukyanov, S (December 2002). "A novel method for SNP detection using a new duplex-specific nuclease from crab hepatopancreas". Genome Research. 12 (12): 1935–42. doi:10.1101/gr.547002. PMC 187582. PMID 12466298.
Christodoulou, DC; Gorham, JM; Herman, DS; Seidman, JG (April 2011). "Construction of Normalized RNA-seq Libraries for Next-Generation Sequencing Using the Crab Duplex-Specific Nuclease". Current Protocols in Molecular Biology. Chapter 4: Unit 4.12. doi:10.1002/0471142727.mb0412s94. PMC 3152986. PMID 21472699.

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[pmid12466298-1] Shagin, DA; Rebrikov, DV; Kozhemyako, VB; Altshuler, IM; Shcheglov, AS; Zhulidov, PA; Bogdanova, EA; Staroverov, DB; Rasskazov, VA; Lukyanov, S (December 2002). "A novel method for SNP detection using a new duplex-specific nuclease from crab hepatopancreas". Genome Research. 12 (12): 1935–42. doi:10.1101/gr.547002. PMC 187582. PMID 12466298.

[pmid21472699-2] Christodoulou, DC; Gorham, JM; Herman, DS; Seidman, JG (April 2011). "Construction of Normalized RNA-seq Libraries for Next-Generation Sequencing Using the Crab Duplex-Specific Nuclease". Current Protocols in Molecular Biology. Chapter 4: Unit 4.12. doi:10.1002/0471142727.mb0412s94. PMC 3152986. PMID 21472699.

Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Coenzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)