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. 2010 Dec 30;5(12):e16000. doi: 10.1371/journal.pone.0016000

Figure 2. Purification of recombinant CCN proteins.

Figure 2

(A) Analysis of purification of recombinant CCN2/CTGF from supernatants of stable transfected WB4 clone by SDS-PAGE and subsequent Coomassie stain. Bacterially expressed CCN2/CTGF (1 and 2 µg) served as an internal control. (B) Western blot analysis of individual fractions using a CCN2/CTGF-specific antibody. (C) Analysis of purification of CCN3/NOV from supernatants of COS-7 that were transiently infected with Ad-CMV-CCN3/NOV in Ponceau S stain. (D) The membrane from (C) was probed with a CCN3/NOV-specific antibody. (E) Different amounts (20 and 45 µg) of purified CCN3/NOV taken from fraction 2 (C, D) were analysed in Coomassie stain (left panel), Ponceau S stain (middle panel) and Western blot (right panel) with a CCN3/NOV-specific antibody.