Journal: Cell reports
Article Title: The light chain of the L9 antibody is critical for binding circumsporozoite protein minor repeats and preventing malaria
doi: 10.1016/j.celrep.2022.110367
Figure Lengend Snippet: (A) Ig heavy and light chain pairings matched to create normal mAbs (L9, F10, L9MRCA) and chimeric mAbs (L9HF10κ, F10HL9κ, D2HL9κ, D2HF10κ) used in this study. Each heavy and light chain’s divergence from germline is depicted. (B) Binding of various concentrations of indicated mAbs to rPfCSPFL (left), peptide 22 (NANPNVDPNANPNVD, middle), and (NANP)9 (right) measured by ELISA; optical density at 450 nm (OD450) is plotted. The NANP-preferring PfCSP mAb 317 and the anti-gp120 mAb VRC01 were included as positive and negative controls, respectively. (C) Binding response (nm) and apparent avidity (KDapp, nM) of indicated mAbs binding to peptide 22 determined through BLI. (D) Competition ELISA of indicated mAbs binding to rPfCSPFL and various concentrations of peptide 22 (rightmost bar) or variant peptides (other bars) where the indicated amino acid was mutated to alanine or serine. Area under the curve (AUC) is plotted. (E) SEC plots of indicated Fabs incubated with peptide 22 (Fabs alone, black peak; Fabs+pep22, blue peak). All data are representative of two independent experiments. See also Figure S2 and Table S1.
Article Snippet: L9 lineage PfCSP immunoglobulin heavy and light chain variable region sequences , GenScript , GenBank Accession Numbers MZ686952 – MZ686956.
Techniques: Binding Assay, Enzyme-linked Immunosorbent Assay, Variant Assay, Incubation