ApaG domain <p>This domain is found in the bacterial protein ApaG and at the C termini of some F-box proteins (<db_xref db="INTERPRO" dbkey="IPR001810"/>). F-box proteins contain a carboxy-terminal domain that interacts with protein substrates [<cite idref="PUB00009973"/>]. The ApaG domain is ~125 amino acids in length, and is named after the bacterial ApaG protein, of which it forms the core. The <taxon tax_id="602">Salmonella typhimurium</taxon> ApaG domain protein, CorD, is involved in Co(2+) resistance and Mg(2+) efflux. Tertiary structures from different ApaG proteins show a fold of several beta-sheets. The ApaG domain may be involved in protein-protein interactions which could be implicated in substrate-specificity [<cite idref="PUB00009972"/>, <cite idref="PUB00016988"/>, <cite idref="PUB00016989"/>].</p>