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Relaxase central domain
helical hairpin domain-containing protein
This Pfam HMM is based on an open reading frame originally proposed to be SrtI, an immunity protein of the streptin biosynthesis locus, but the region is actually a pseudogene fragment of a conjugative relaxase.
relaxase/mobilization nuclease domain-containing protein
Relaxases/mobilisation proteins are required for the horizontal transfer of genetic information contained on plasmids that occurs during bacterial conjugation. The relaxase, in conjunction with several auxiliary proteins, forms the relaxation complex or relaxosome. Relaxases nick duplex DNA in a specific manner by catalysing trans-esterification[1]. [1]. 9350859. Nicking by transesterification: the reaction catalysed by a. relaxase.. Byrd DR, Matson SW;. Mol Microbiol 1997;25:1011-1022.. [2]. 10940031. Identification of the mob genes of plasmid pSC101 and. characterization of a hybrid pSC101-R1162 system for conjugal. mobilization.. Meyer R;. J Bacteriol 2000;182:4875-4881.. [3]. 10482518. Bacterial conjugation protein MobA mediates integration of. complex DNA structures into plant cells.. Bravo-Angel AM, Gloeckler V, Hohn B, Tinland B;. J Bacteriol 1999;181:5758-5765. (from Pfam)
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