Calciomics: prediction and analysis of EF-hand calcium binding proteins by protein engineering. Academic Article uri icon


  • Ca(2+) plays a pivotal role in the physiology and biochemistry of prokaryotic and mammalian organisms. Viruses also utilize the universal Ca(2+) signal to create a specific cellular environment to achieve coexistence with the host, and to propagate. In this paper we first describe our development of a grafting approach to understand site-specific Ca(2+) binding properties of EF-hand proteins with a helix-loop-helix Ca(2+) binding motif, then summarize our prediction and identification of EF-hand Ca(2+) binding sites on a genome-wide scale in bacteria and virus, and next report the application of the grafting approach to probe the metal binding capability of predicted EF-hand motifs within the streptococcal hemoprotein receptor (Shr) of Streptococcus pyrogenes and the nonstructural protein 1 (nsP1) of Sindbis virus. When methods such as the grafting approach are developed in conjunction with prediction algorithms we are better able to probe continuous Ca(2+)-binding sites that have been previously underrepresented due to the limitation of conventional methodology.

published proceedings

  • Sci China Chem

author list (cited authors)

  • Yanyi, C., Shenghui, X., Yubin, Z., & Jie, Y. J.

citation count

  • 22

complete list of authors

  • Yanyi, Chen||Shenghui, Xue||Yubin, Zhou||Jie, Yang Jenny

publication date

  • January 2010