The most accurate method of determining protein concentration is probably acid hydrolysis followed by amino acid analysis. Most other methods are sensitive to the amino acid composition of the protein and absolute concentrations cannot be obtained. The procedure of Lowry et al. (1) is no exception, but its sensitivity is moderately constant from protein to protein, and it has been so widely use...

Kathryn Calame C. Thomas Caskey Dennis W. Choi John M. Coffin Paul J. Crutzen Robert Desimone Bruce F. Eldridge Paul T. Englund Richard G. Fairbanks Douglas T. Fearon Harry A. Fozzard Klaus Friedrich Theodore H. Geballe John C. Gerhart Roger 1. M. Glass Stephen P. Goff Peter N. Goodfellow Corey S. Goodman Ira Herskowitz Eric F. Johnson Stephen M. Kosslyn Michael LaBarbera Nicole Le Douarin Char...

Three species of seabreams, Acanthopagrus berda, Acanthopagrus schlegelii and Pagrus major, living at different depths, were chosen to investigate how visual spectra and opsin genes evolve in response to various photic environments. The lambda max of photoreceptors and opsin genes were measured and cloned from these species. Eight to twelve nm spectral shifts in the rod and blue cone cells were...

Kathryn Calame C. Thomas Caskey Dennis W. Choi John M. Coffin Paul J. Crutzen Robert Desimone Nicole Le Douarin Bruce F. Eldridge Paul T. Englund Richard G. Fairbanks Douglas T. Fearon Harry A. Fozzard K. Friedrich Theodore H. Geballe Margaret J. Geller John C. Gerhart Roger 1. M. Glass Stephen P. Goff Peter N. Goodfellow Corey S. Goodman Stephen J. Gould Ira Herskowitz Eric F. Johnson Stephen ...