RESIDUE A1JKN 18 CONECT C01 4 C02 N05 H011 H012 CONECT C02 4 C01 C03 H021 H022 CONECT C03 4 C02 C04 H031 H032 CONECT C04 4 C03 N05 H041 H042 CONECT N05 3 C01 C04 S06 CONECT O07 1 S06 CONECT O08 1 S06 CONECT O09 2 S06 H1 CONECT S06 4 N05 O07 O08 O09 CONECT H011 1 C01 CONECT H012 1 C01 CONECT H021 1 C02 CONECT H022 1 C02 CONECT H031 1 C03 CONECT H032 1 C03 CONECT H041 1 C04 CONECT H042 1 C04 CONECT H1 1 O09 END HET A1JKN 18 HETNAM A1JKN pyrrolidine-1-sulfonic acid FORMUL A1JKN C4 H9 N O3 S