Protein Family Models

The SRAP family functions as a DNA-associated autoproteolytic switch that recruits diverse repair enzymes onto DNA damage. We propose that the human protein Q96FZ2:UniProtKB, the eukaryotic member of the SRAP family, which has been recently shown to bind specifically to DNA with 5-hydroxymethylcytosine, 5-formylcytosine and 5-carboxycytosine, is a sensor for these oxidized bases generated by the TET (tetrahedral aminopeptidase of the M42 family) enzymes from methylcytosine. Hence, its autoproteolytic activity might help it act as a switch that recruits DNA repair enzymes to remove these oxidized methylcytosine species as part of the DNA demethylation pathway downstream of the TET enzymes. [1]. 23945014. Novel autoproteolytic and DNA-damage sensing components in the. bacterial SOS response and oxidized methylcytosine-induced. eukaryotic DNA demethylation systems.. Aravind L, Anand S, Iyer LM;. Biol Direct. 2013;8:20. (from Pfam)

Date:

2024-08-14

SOS response-associated peptidase (SRAP) catalyzes the conversion of the apurinic/apyrimidinic (AP, or abasic) sites in DNA to its reactive, ring-opened aldehyde form, and the reversal of DNA-protein cross-links

Date:

2022-09-02