Densitometric analysis of the plant-purified V_HH2-Fc antibody product (the three bands of Fig. 5B, lane 2) evaluated using the densitometry feature of Quantity One Software.

bTrace Quantity is the quantity of a band as measured by the area under its intensity profile curve, and Relative Quantity is the quantity of a particular band in a lane expressed as percentage of the total quantity of all the bands in the lane.条带轨迹量（bTrace Quantity）指通过条带强度分布曲线下面积所测得的条带含量；相对含量（Relative Quantity）则指某一泳道中特定条带的含量占该泳道所有条带总含量的百分比。