>sp|O33702|SSIK_STRPT Kexstatin-1 OS=Streptomyces platensis MRYITGAVALGAALVLGTLATTAQAAAPAQPARTGGLYAPTELVLTVGQGESRATATVQR AVTLSCMPGARGSHPNPLGACTQLRAVAGDFNAITAATSDRLCTKEWNPLVVTADGVWQG KRVSYSYTFANRCEMNIDSDTVFNF