. . . . . . . . . . . . . . . . . . . . . . . . . . . . "rad21_human"^^ . "RAD21"^^ . "NXP1"^^ . "KIAA0078"^^ . "HR21"^^ . "Nuclear matrix protein 1"^^ . "SCC1 homolog"^^ . . "Double-strand-break repair protein rad21 homolog"^^ .