>1qqr_B mol:protein length:138 STREPTOKINASE DOMAIN B IQNQAKSVDVEYTVQFTPLNPDDDFRPGLKLTKLLKTLAIGDTITSQELLAQAQSILNK NHPGYTIYERDSSIVTHDNDIFRTILPMDQEFTYRVKNREQAYRINKKSGLNEEINNTD LISEKYYVLKKGEKPYDPFD