InterPro domain: IPR023342

This entry represents the APO domain which is found in plant APO (Accumulation of photosystem) proteins. The domain contains conserved cysteine and histidine residues [ 1 ]. It functions as an RNA-binding domain [ 2 ].

1. ACCUMULATION OF PHOTOSYSTEM ONE1, a member of a novel gene family, is required for accumulation of [4Fe-4S] cluster-containing chloroplast complexes and antenna proteins. Plant Cell 16, 3084-97
2. APO1 promotes the splicing of chloroplast group II introns and harbors a plant-specific zinc-dependent RNA binding domain. Plant Cell 23, 1082-92