The Enzyme Database

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EC 3.1.12.1     
Accepted name: 5′ to 3′ exodeoxyribonuclease (nucleoside 3′-phosphate-forming)
Reaction: exonucleolytic cleavage in the 5′- to 3′-direction to yield nucleoside 3′-phosphates
Other name(s): Cas4; 5′ to 3′ single stranded DNA exonuclease
Comments: Preference for single-stranded DNA. The enzyme from the archaeon Sulfolobus solfataricus contains a [4Fe-4S] cluster and requires a divalent metal cation, such as Mg2+ or Mn2+, for activity.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Zhang, J., Kasciukovic, T. and White, M.F. The CRISPR associated protein Cas4 Is a 5′ to 3′ DNA exonuclease with an iron-sulfur cluster. PLoS One 7:e47232 (2012). [PMID: 23056615]
2.  Lemak, S., Beloglazova, N., Nocek, B., Skarina, T., Flick, R., Brown, G., Popovic, A., Joachimiak, A., Savchenko, A. and Yakunin, A.F. Toroidal structure and DNA cleavage by the CRISPR-associated [4Fe-4S] cluster containing Cas4 nuclease SSO0001 from Sulfolobus solfataricus. J. Am. Chem. Soc. 135 (2013) 17476–17487. [PMID: 24171432]
[EC 3.1.12.1 created 2014]
 
 


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