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. 2015 Sep 1;23(7):597–612. doi: 10.1089/ars.2014.5939

FIG. 3.

FIG. 3.

Analysis of the protein folding, ER stress and degradation machineries in SC and OM adipocytes from NG and IR subjects. (A) HSP70 protein content in SC and OM adipocytes of NG and IR subjects (n=5 individuals/group). Standardized log. abundance of the spots in the 2D-DIGE gels (upper panels; n=4 individuals/group). (B) Protein content of the ER marker, CHOP, in adipocytes of NG and IR subjects (n=5 individuals/group). (C) Quantification of ubiquitinated proteins in NG and IR adipocytes (n=5 individuals/group); protein levels in SC-NG adipocytes in the dot blots were set to 1 and used as reference for data normalization. (D) Measurement of the chymotrypsin-like (ChT-L) peptidase activity of the 26S proteasome (+ATP) (left panel) and 20S proteasome (+SDS) (right panel) in SC and OM adipocytes of NG and IR subjects (n=5 individuals/group). Data are expressed as a percentage of values in SC-NG adipocytes (100%). *p<0.05 versus NG.