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Information on EC - spore photoproduct lyase

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EC Tree
     4 Lyases
         4.1 Carbon-carbon lyases
             4.1.99 Other carbon-carbon lyases
       spore photoproduct lyase
IUBMB Comments
This enzyme is a member of the 'AdoMet radical' (radical SAM) family. The enzyme binds a [4Fe-4S] cluster. The cluster is coordinated by 3 cysteines and an exchangeable SAM molecule . The 5'-deoxy-adenosine radical formed after electron transfer from the [4Fe-4S] cluster to the S-adenosyl-L-methionine, initiates the repair by abstracting the C-6 hydrogen of the spore photoproduct lesion. During the second part of the repair process the SAM molecule is regenerated .
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Word Map
The enzyme appears in viruses and cellular organisms
sp lyase, spore photoproduct lyase, spl-1, spl(ca), more
(5R)-5,6-dihydro-5-(thymidin-7-yl)thymidine (in double-helical DNA) = thymidylyl-(3'->5')-thymidylate (in double-helical DNA)
show the reaction diagram