Retraction notice to "Peptide-induced formation of protein aggregates and amyloid fibrils in human and Guinea pig αA-crystallins under physiological conditions of temperature and pH" [Exp. Eye Res. 179 (2019) 193-205]

Exp Eye Res. 2020 May;194:107990. doi: 10.1016/j.exer.2020.107990. Epub 2020 Apr 16.


This article has been retracted: please see Elsevier Policy on Article Withdrawal ( This article has been retracted at the request of the authors. The senior author contacted the journal in a forthright manner, in an effort to preserve the scientific integrity of the literature, after discovering a significant error in the results reported in the article. The authors were recently made aware of a paper by Kim et al. (Nature Commun. 2019) which shows a spirosome structure (the enzyme aldehyde-alcohol dehydrogenase) present in E. coli (Fig. 5a) that is very similar to the structure the authors thought formed when synthetic alpha A crystallin (66-80) peptide was incubated for 24 h with recombinant guinea pig alpha A insert crystallin (see Kumarasamy et al. Figs. 7C and F, and Fig. 9). Subsequent to publication of their report, the authors later found a number of images that showed what appeared to be the same structure present in samples of their presumably purified recombinant guinea pig alpha A insert crystallin which had been incubated without peptide for 24 h. Hence, the authors now conclude that the structures shown in Figs. 7C and F, and Fig. 9 of their article published in this journal are actually due to E. coli contaminant aldehyde-alcohol dehydrogenase. The authors deeply regret this error and any inconvenience it may have caused.

Publication types

  • Retraction of Publication