Expression of concern: A chaperonin subunit with unique structures is essential for folding of a specific substrate
• Concerns were raised about discontinuities in the lower regions of lanes 1 and 5 in Fig 2B, which suggest that rectangular portions of the image were spliced or otherwise altered. The corresponding author provided the underlying gel image for Fig 2B (S1 File). Coomassie Brilliant Blue staining in the areas of concern was not as strong in the raw image as in the figure, supporting that the image was selectively enhanced or otherwise manipulated in these areas. This is in violation of community standards and PLOS Biology’s requirements for image data reporting, which require that any adjustments must be applied consistently to the entire image. The underlying data provided by the authors support the overall results presented in Fig 2B, although the PLOS Biology Editors remain concerned about the integrity with which the data were reported in the published article.