pleated sheet meaning in English

片层
折叠片
褶板

Ag + and fe2 + caused the fluorescence of trp residues in g6pd quenched ; mg2 + and edta made fluorescence intensity of g6pd increased , this indicates that they caused trp residues wrapped and came to the inner core and located in the hydrophobic area ; while zn2 + or mn2 + made fluorescence intensity of g6pd decreased , this indicates that they made the conformation of g6pd relaxed and chromophores exposed to polarity environments . in native condition and in the far circular dichroic ( cd ) region , g6pd exhibited two characteristic negative band centered at 208nm and 222nm respectively , thus it is estimated to contain about 41 . 2 % a - helix , 20 . 6 % - pleated sheet and 38 . 2 % random coil and turn
Ag ~ +和fe ~ ( 2 + )引起色氨酸( trp )残基的荧光淬灭； mg ~ ( 2 + )和edta均使g6pd的荧光强度增强，说明它们使trp残基重新包裹在分子内部而处于疏水的微环境中； zn ~ ( 2 + )和mn ~ ( 2 + )均使g6pd的荧光强度变小，说明它们使酶分子构象变得疏松，原来处在分子内部的发色团暴露在极性环境中。