7b5g
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Crystal structure of E.coli LexA in complex with nanobody NbSOS3(Nb14527)
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Structural highlights
FunctionLEXA_ECOLI Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. Binds to the 16 bp palindromic sequence 5'-CTGTATATATATACAG-3'. In the presence of single-stranded DNA, RecA interacts with LexA causing an autocatalytic cleavage which disrupts the DNA-binding part of LexA, leading to derepression of the SOS regulon and eventually DNA repair.[1] [2] References
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This page was last modified 12:22, 1 February 2024.