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. 2012 May 3;11(9):558–570. doi: 10.1074/mcp.M112.017004

Fig. 4.

Fig. 4.

The proportion of 13C and 12C isotopic forms of selected proteins is depicted for the wild type and the clpP mutant in the soluble and nonsoluble fraction; (exp. growth phase, transient phase (0 h), 5 h, 10 h, 15 h, and 20 h of stationary phase). The isotopic proportions of the soluble and nonsoluble fraction were calculated by normalization against the sum of all isotopic values for each protein in a fraction (valueC13,solublefractiontx=(C13/N15)txi=16(C13/N15+C12/N15)ti;valueC12,solublefractiontx=(C12/N15)txi=16(C13/N15+C12/N15)ti;valueC13,nonsolublefractiontx=(C13/N15)txi=16(C13/N15+C12/N15)ti;valueC12,nonsolublefractiontx=(C12/N15)txi=16(C13/N15+C12/N15)ti).