Figure 1
From: Identification of bottlenecks in antibody expression using targeted gene integration
Observed correlation of specific productivity and sequence identity to the closest human germline sequence (germinality) (A). Antibody expression levels are influenced by several factors. Recombinase-mediated cassette exchange was applied to control for gene copy number and mRNA transcript level. Low expressing antibody variants (2F5, 4B3 and 2G12) were compared to its closest human germline sequence together with a therapeutic antibody (Ustekinumab) with low degree of germinality (B). Respective germline antibody variants were constructed by combination of germline V-, D- and J-segments.