Histone-like protein and chromatin structure in the wall-less dinoflagellate Gymnodinium nelsoni.
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Basic nuclear proteins from the wall-less dinoflagellate Gymnodinium nelsoni were analyzed by polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate (SDS). One major histone-like protein with a molecular weight of about 10 000 was present in acid extracts of whole nuclei and chromatin isolated from growing cultures. In addition, two minor components of 17 000 and 13 000 daltons were also noted. Chromatin fibers spread by the microcentrifugation technique showed no indication of a subunit structure, but instead appeared as smooth threads with diameter of about 6.5 nm.
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Rizzo, P. J., & Burghardt, R. C.
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