Retraction: Citius,Altius, Fortius. J. Lange,G. Vriend. Proteins: Structure,Function, and Bioinformatics. 2020. https://doi.org/10.1002/prot.12345

The above article, published online on 12 June 2020 in Wiley Online Library ( wileyonlinelibrary.com ), has been retracted by agreement between the authors, the journal's Editor-in-Chief Dr. Nikolay Dokholyan, and John Wiley & Sons, Inc. The above article is a humorous editorial contribution surrounding a specialized topic, and was not intended for full online publication as part of the journal's scholarly content. Due to an editorial mistake, the above article was published online in Early View. John Wiley & Sons, Inc. takes full responsibility for the erroneous publication of this article.     

Langenheim, J.H. Plant resins: chemistry, evolution, ecology and ethnobotany.

When I agreed to review this book, I did so because I thoughtit would be an opportunity to bring myself up-to-date in a fieldI felt I ought to know more about. I had no idea that it wouldmake such compulsive reading. Jean Langenheim has spent hercareer working on plant resins and she has done a great serviceby assembling her wealth of knowledge and experience into thismarvellous book. The blandness of the title     

Plant Respiration: Physiological Aspects,T.K. Golovko,St. Petersburg: Nauka, 1999

Russian Journal of Plant Physiology -     

The blood cell: an expensive disappointment: Atlas of Human Hemopoietic Development. By E. Kelemen,W. Calvo and T. M. Fliedner. Berlin,Heidelberg, New York: Springer-Verlag, 266 pp. $198.00

We have utilized a cracking procedure followed by a rotary shadow technique to examine the ultrastructure of cultured ovarian granulosa cells. We have demonstrated that the structures observed are not artifacts of fixation or cracking by generating equivalent images following freezing and deep etching as well as by fixation prior to cracking. The cytoplasm of granulosa cells exhibits a complex cytoskeletal lattice composed of many 40–55 nm filaments. This filamentous network is continuous with the plasma membrane and appears to incorporate all formed elements within the cytoplasm. Filaments are organized in three ways: first, in large bundles, second, in individual filaments that are in direct association with organelles, and third, in a complex branching and anastomosing configuration. S-1 decoration revealed that the predominant filament species is actin.     

Hydrodynamic multibead modeling: problems, pitfalls, and solutions. 2. Proteins

The shape of macromolecules can be approximated by filling models, if both hydrodynamic and scattering properties should be predicted. Modeling of complex biological macromolecules, such as oligomeric proteins, or of molecule details calls for usage of many beads to preserve the original features. However, the calculation of precise values for structural and hydrodynamic parameters has to consider many problems and pitfalls. Among these, the huge number of beads required for modeling details and the choice of appropriate volume corrections for the calculation of intrinsic viscosities are pestering problems to date. As a first step to tackle these problems, various tests with multibead models (ellipsoids of different axial ratios) were performed. The agreement of the predicted molecular properties with those derived from whole-body approaches can be used as evaluation criteria. Modification of previously available versions of García de la Torre’s program HYDRO allows hydrodynamic modeling of macromolecules composed of a maximum of about 11,000 beads. Moreover, application of our recently suggested “reduced volume correction” enables a fast and efficient anticipation of intrinsic viscosities. Correct parameter predictions were obtained for all models analyzed. The data obtained were compared to the results of calculations based on HYDRO programs available to the public. The calculations revealed some unexpected results and allowed founded conclusions of general importance for precise calculations on multibead models (e.g., the requirement of calculations in the double-precision mode).     

Dris, R., Abdelaziz, F.H. and Jain, S.M. Plant nutrition: growth and diagnosis

Is research on plant mineral nutrition still necessary wheninorganic fertilizers are readily available? The simple answeris ‘yes’! The use of inorganic fertilizers depletesnatural resources and can impose a heavy financial and environmentalcost. For example, reserves of rock phosphate (the primary sourceof P for fertilizers) are diminishing whilst the production,transport