Protein Domain : Antirestriction protein ArdA, domain 1 IPR041895

Type	Homologous_superfamily
Description	ArdA functions in bacterial conjugation to allow an unmodified plasmid to evade restriction in the recipient bacterium and yet acquire cognate modification [ ]. ArdA forms a dimer and each monomer is comprised of three small α-β domains, each with a different fold, arranged in a row in each monomer.This superfamily represents the bacterial antirestriction (ArdA) protein N-terminal domain 1. Structurally, it consists of a three-stranded anti-parallel β-sheet and one short α-helix interspersed with three large loops of 10 or more residues. Domain 1 is not essential for anti-restriction as it can be deleted, indicating that the key aspect of anti-restriction by ArdA is the binding to the MTase core using domains 2 ( ) and 3 ( ) [ ].
Short Name	ArdA_dom1