label: cholesteryl 3-beta-D-xyloside + an N-acylsphing-4-enine => a beta-D-xylosyl-(1<->1')-N-acylsphing-4-enine + cholesterol
label_lc: cholesteryl 3-beta-d-xyloside + an n-acylsphing-4-enine => a beta-d-xylosyl-(1<->1')-n-acylsphing-4-enine + cholesterol