Readers should cite both the Bio-protocol preprint and the original research article where this protocol was used:

Thakur, K and Singh, R(2020). Cloning and purification of VapB22, VapC22, and VapBC22. Bio-protocol Preprint. bio-protocol.org/prep563.
Agarwal, S., Sharma, A., Bouzeyen, R., Deep, A., Sharma, H., Mangalaparthi, K. K., Datta, K. K., Kidwai, S., Gowda, H., Varadarajan, R., Sharma, R. D., Thakur, K. G. and Singh, R.(2020). VapBC22 toxin-antitoxin system from Mycobacterium tuberculosis is required for pathogenesis and modulation of host immune response . Science Advances 6(23). DOI: 10.1126/sciadv.aba6944