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University of Massachusetts Medical School

Cellular and Molecular Physiology

1981

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Coat Protein Synthesis During Sporulation Of Bacillus Subtilis: Immunological Detection Of Soluble Precursors To The 12,200-Dalton Spore Coat Protein, Robert C. Goldman, Donald J. Tipper Sep 1981

Coat Protein Synthesis During Sporulation Of Bacillus Subtilis: Immunological Detection Of Soluble Precursors To The 12,200-Dalton Spore Coat Protein, Robert C. Goldman, Donald J. Tipper

Microbiology and Physiological Systems Publications and Presentations

Antibody specific to the 12,200-dalton spore coat protein of Bacillus subtilis was used to detect the synthesis of cross-reacting material during sporulation. Cross-reacting protein was first detected by immunoprecipitation after 4 h of development and represented at least 1 to 2% of the total soluble protein synthesis at 5.5 h. A polypeptide of 21,000 daltons was detected in immunoprecipitates by gel electrophoresis. This polypeptide did not accumulate in sporulating cells and was rapidly turned over at the time of coat deposition. In contrast, a 32,000-dalton polypeptide reacted with antibody when unlabeled cell protein was denatured with ...