TY - JOUR

T1 - Quantification of immobilized protein in pharmaceutical production by bio-assisted potentiometric multisensor system

AU - Voitechovič, Edita

AU - Korepanov, Anton

AU - Kirsanov, Dmitry

AU - Legin, Andrey

PY - 2018/2/20

Y1 - 2018/2/20

N2 - Quantification of proteins is a key biochemical assay in molecular biology, biotechnology, medicine and pharmacology. Protein quantification protocols can be based on spectrophotometry, enzyme-linked immunosorbent assay, mass spectrometry or quantitative immunoblotting depending on analyte. In case of immobilized protein these methods require suitable sample preparation. Thus, sophisticated analysis becomes even more complex, expensive and time-consuming. Such drawbacks are highly undesirable in industry. In this study we propose a new approach for evaluation of immobilized protein concentration based on application of bio-assisted potentiometric multisensor system. Surface-immobilized recombinant protein A from Staphylococcus aureus (SpA, expressed in Escherichia coli), which is commonly used as affinity ligand immobilized to stationary phase (сhromatography media) for monoclonal antibody purification was employed as the model object. Chromatography media samples containing different amounts of immobilized SpA were analyzed. Proteinase K from Tritirachium album was employed as a bio-transducer. We demonstrated that the suggested approach provides information about immobilized SpA concentration with 0.8 mg/ml accuracy in the range 1–6.7 mg/ml and within just 16 min. Moreover, the proposed procedure requires no expensive materials and equipment and no bio-transducer immobilization. This method has potential of application for fast monitoring of other immobilized proteins in different tasks.

AB - Quantification of proteins is a key biochemical assay in molecular biology, biotechnology, medicine and pharmacology. Protein quantification protocols can be based on spectrophotometry, enzyme-linked immunosorbent assay, mass spectrometry or quantitative immunoblotting depending on analyte. In case of immobilized protein these methods require suitable sample preparation. Thus, sophisticated analysis becomes even more complex, expensive and time-consuming. Such drawbacks are highly undesirable in industry. In this study we propose a new approach for evaluation of immobilized protein concentration based on application of bio-assisted potentiometric multisensor system. Surface-immobilized recombinant protein A from Staphylococcus aureus (SpA, expressed in Escherichia coli), which is commonly used as affinity ligand immobilized to stationary phase (сhromatography media) for monoclonal antibody purification was employed as the model object. Chromatography media samples containing different amounts of immobilized SpA were analyzed. Proteinase K from Tritirachium album was employed as a bio-transducer. We demonstrated that the suggested approach provides information about immobilized SpA concentration with 0.8 mg/ml accuracy in the range 1–6.7 mg/ml and within just 16 min. Moreover, the proposed procedure requires no expensive materials and equipment and no bio-transducer immobilization. This method has potential of application for fast monitoring of other immobilized proteins in different tasks.

KW - Multisensor system

KW - Potentiometric sensor

KW - Protein A

KW - Proteinase K

KW - Sorbent

KW - Recombinant Proteins/analysis

KW - Reproducibility of Results

KW - Endopeptidase K/chemistry

KW - Enzyme-Linked Immunosorbent Assay/methods

KW - Staphylococcal Protein A/analysis

KW - Potentiometry/methods

KW - Immobilized Proteins/analysis

KW - ELECTRONIC TONGUES

KW - SENSORS

KW - PH

UR - http://www.scopus.com/inward/record.url?scp=85036541917&partnerID=8YFLogxK

U2 - 10.1016/j.jpba.2017.11.076

DO - 10.1016/j.jpba.2017.11.076

M3 - Article

C2 - 29216587

AN - SCOPUS:85036541917

VL - 150

SP - 67

EP - 71

JO - Journal of Pharmaceutical and Biomedical Analysis

JF - Journal of Pharmaceutical and Biomedical Analysis

SN - 0731-7085

ER -