Identical to CRS2-associated factor 1, chloroplast precursor [Arabidopsis Thaliana] (GB:Q9SL79;GB:Q94AQ2); similar to ATCAF2/CAF2 (ARABIDOPSIS THALIANA HOMOLOG OF MAIZE CAF2) [Arabidopsis thaliana] (TAIR:AT1G23400.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO65472.1); contains InterPro domain CRS1/YhbY (InterPro:IPR001890)