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Lin WW, Chen IJ, Cheng TC, Tung YC, Chu PY, Chuang CH, Hsieh YC, Huang CC, Wang YT, Kao CH, Roffler SR, Cheng TL. A Secondary Antibody-Detecting Molecular Weight Marker with Mouse and Rabbit IgG Fc Linear Epitopes for Western Blot Analysis. PLoS One 2016; 11:e0160418. [PMID: 27494183 PMCID: PMC4975442 DOI: 10.1371/journal.pone.0160418] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 07/19/2016] [Indexed: 11/18/2022] Open
Abstract
Molecular weight markers that can tolerate denaturing conditions and be auto-detected by secondary antibodies offer great efficacy and convenience for Western Blotting. Here, we describe M&R LE protein markers which contain linear epitopes derived from the heavy chain constant regions of mouse and rabbit immunoglobulin G (IgG Fc LE). These markers can be directly recognized and stained by a wide range of anti-mouse and anti-rabbit secondary antibodies. We selected three mouse (M1, M2 and M3) linear IgG1 and three rabbit (R1, R2 and R3) linear IgG heavy chain epitope candidates based on their respective crystal structures. Western blot analysis indicated that M2 and R2 linear epitopes are effectively recognized by anti-mouse and anti-rabbit secondary antibodies, respectively. We fused the M2 and R2 epitopes (M&R LE) and incorporated the polypeptide in a range of 15–120 kDa auto-detecting markers (M&R LE protein marker). The M&R LE protein marker can be auto-detected by anti-mouse and anti-rabbit IgG secondary antibodies in standard immunoblots. Linear regression analysis of the M&R LE protein marker plotted as gel mobility versus the log of the marker molecular weights revealed good linearity with a correlation coefficient R2 value of 0.9965, indicating that the M&R LE protein marker displays high accuracy for determining protein molecular weights. This accurate, regular and auto-detected M&R LE protein marker may provide a simple, efficient and economical tool for protein analysis.
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Affiliation(s)
- Wen-Wei Lin
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - I-Ju Chen
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ta-Chun Cheng
- Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Ching Tung
- Department of Public Health and Environmental Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Pei-Yu Chu
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Hung Chuang
- Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yuan-Chin Hsieh
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chien-Chiao Huang
- Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yeng-Tseng Wang
- Department of Biochemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chien-Han Kao
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Steve R. Roffler
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- * E-mail: (TLC); (SRR)
| | - Tian-Lu Cheng
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
- * E-mail: (TLC); (SRR)
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Byvalov AA, Dudina LG, Chernyad’ev AV, Konyshev IV, Litvinets SG, Ovodov YS. Immunochemical activity of the Yersinia pseudotuberculosis B-antigen. MOLECULAR GENETICS, MICROBIOLOGY AND VIROLOGY 2015. [DOI: 10.3103/s0891416815020032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Karbyshev GL, Simakova DI, Larionova LV, Terent’ev AN, Lysova LK, Sanamyants EM. Study of Yersinia pseudotuberculosis antigenic structure to obtain a sensitin for design of species-specific diagnostic kits. APPL BIOCHEM MICRO+ 2011. [DOI: 10.1134/s0003683811080084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Braun-Kiewnick A, Altenbach D, Oberhänsli T, Bitterlin W, Duffy B. A rapid lateral-flow immunoassay for phytosanitary detection of Erwinia amylovora and on-site fire blight diagnosis. J Microbiol Methods 2011; 87:1-9. [DOI: 10.1016/j.mimet.2011.06.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 06/13/2011] [Accepted: 06/18/2011] [Indexed: 10/18/2022]
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