asx motif造句

• Asx motifs have thus often been described as helix capping features.
• As with Asx turns, a significant proportion of Asx motifs occur at the N-terminus of an alpha helix with the Asx as the N cap residue.
• Asx turns, ST turns, asx motifs and ST turns are often found at such situations, with the asx or serine or threonine residue at the N cap.
• Asx and ST turns both occur frequently at the N-termini of ?-helices, as part of asx motifs or ST motifs, with the asx, serine or threonine as the N cap residue.