Length and structural effect of signal peptides derived from Bacillus subtilis alpha-amylase on secretion of Escherichia coli beta-lactamase in B. subtilis cells. - Kazutaka Ohmura; Kouji Nakamura; Hisato Yamazaki; Teruaki Shiroza; Kunio Yamane; Yoshifumi Jigami; Hideaki Tanaka; Koji Yoda; Makari Yamasaki; Gakuzo Tamura (Nucleic Acids Res., 1984)