ATCPSF100/CPSF100/EMB1265/ESP5 (CLEAVAGE AND POLYADENYLATION SPECIFICITY FACTOR); DNA binding / protein binding. Identical to Cleavage and polyadenylation specificity factor subunit 2 [Arabidopsis Thaliana] (GB:Q9LKF9;GB:Q9FF92); similar to CPSF73-I [Arabidopsis thaliana] (TAIR:AT1G61010.2); similar to CPSF73-I, protein binding [Arabidopsis thaliana] (TAIR:AT1G61010.1); similar to CPSF73-I [Arabidopsis thaliana] (TAIR:AT1G61010.3); similar to unnamed protein product [Vitis vinifera] (GB:CAO49431.1); similar to hypothetical protein OsJ_029214 [Oryza sativa (japonica cultivar-group)] (GB:EAZ45731.1); similar to hypothetical protein OsI_031377