Journal: Scientific Reports
Article Title: Broadly reactive monoclonal antibodies against beta-lactamases for immunodetection of bacterial resistance to antibiotics
doi: 10.1038/s41598-025-04603-2
Figure Lengend Snippet: Production and analysis of the chimeric gp39m_linker_DHA protein. (a) Alignment of the conserved aa region of DHA-1 (GenBank no. AEP68014.1 ) (squared in yellow), CMY-34 (GenBank no. ABN51006.1 ), ACT-14 (GenBank no. AFU25647.1 ), PDC-195 (GenBank no. AHH52937.1 ) and ADC-144 (GenBank no. OVK75103.1 ) β-lactamases. An asterisk “*” denotes positions that have a single, fully conserved residue. A period “.” indicates conservation between groups of weakly similar properties. A colon “:” indicates conservation between groups of strongly similar properties. (b) Schematic representation of chimeric protein construction. A 77–93 aa region of DHA-1 (DHA-1 77−93 ) was fused with the tail tube protein gp39 of the bacteriophage, introducing a linker sequence (indicated in Supplementary information file 2, Fig. ). (c) SDS‒PAGE and WB analysis of yeast-expressed gp39 protein variants (indicated by yellow arrows). The lysates of yeast expressing gp39 and gp39m_linker_DHA were analysed. The dash “–” indicates the lysate of yeast transformed with the vector pFX7 without the DHA-1 77−93 coding sequence. For WB analysis, gp39 protein-specific in-house generated mouse polyclonal antibodies were used. M – molecular weight marker Page Ruler Prestained protein ladder (Thermo Scientific, 26616). The original blot and gel data are presented in Supplementary information file 2, Fig. . (d) Electron micrographs of chimeric nanotubes. The scale bars represent 200 nm. The original micrographs are presented in Supplementary information file 2, Fig. S3.
Article Snippet: M – molecular weight marker Page Ruler Prestained protein ladder (Thermo Scientific, 26616).
Techniques: Residue, Sequencing, Expressing, Transformation Assay, Plasmid Preparation, Generated, Molecular Weight, Marker