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Fig. 8 | BMC Plant Biology

Fig. 8

From: DnaK and DnaJ proteins from Hsp70/40 family are involved in Rubisco biosynthesis in Synechocystis sp. PCC6803 and sustain the enzyme assembly in a heterologous system

Fig. 8

Model of biosynthesis process of Rubisco from Synechocystis sp. PCC6803. Specific proteins, participating in the process, are shown by their ideograms, described in a legend. Unclear points are indicated with question marks. Shortly, unfolded RbCL peptide, after the translation stage, bound to DnaK2, DnaJ SII1384, and/or Raf1. RbcL is then delivered to the chaperonin complex. Somewhere at this stage DnaK2 and DnaJ dissociate and the RbcX chaperone attaches. In the following steps, dimerization and further oligomerization of RbCL occur and RbcS connects, to form a functional Rubisco enzyme. The possibility of Raf1 substitution for RbcX in RbCl dimer/octamer is shown as an alternative pathway

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BMC Plant Biology

ISSN: 1471-2229

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