ATP sulfurylase 1, chloroplastic APS1 463 APS1_ARATH F5N5.6 MASMAAVLSKTPFLSQPLTKSSPNSDLPFAAVSFPSKSLRRRVGSIRAGLIAPDGGKLVELIVEEPKRREKKHEAADLPRVELTAIDLQWMHVLSEGWASPLGGFMRESEFLQTLHFNSLRLDDGSVVNMSVPIVLAIDDEQKARIGESTRVALFNSDGNPVAILSDIEIYKHPKEERIARTWGTTAPGLPYVDEAITNAGNWLIGGDLEVLEPVKYNDGLDRFRLSPAELRKELEKRNADAVFAFQLRNPVHNGHALLMTDTRRRLLEMGYKNPILLLHPLGGFTKADDVPLDWRMKQHEKVLEDGVLDPETTVVSIFPSPMHYAGPTEVQWHAKARINAGANFYIVGRDPAGMGHPVEKRDLYDADHGKKVLSMAPGLERLNILPFRVAAYDKTQGKMAFFDPSRPQDFLFISGTKMRTLAKNNENPPDGFMCPGGWKVLVDYYESLTPAGNGRLPEVVPV At3g22890 Mediates selenate (Se) reduction, and promotes Se and sulfur (S) uptake and assimilation.