Cell Biol Int Rep 1984 Sep 01;89:747-54. doi: 10.1016/0309-1651(84)90113-9.

Diamide reversibly induces a stress response in the sea urchin, Arbacia punctulata.

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Sea urchin blastulae were treated with two concentrations (0.54 and 0.72 mM) of diamide, a sulfhydryl oxidant, after hatching. These treatments increased the relative synthesis of one set of embryonic proteins while decreasing that of another. This was demonstrated by quantitating the incorporation of [35S]methionine into polypeptides separated by 2-dimensional polyacrylamide gel electrophoresis (2D PAGE). These shifts were dose dependent and apparently reversible after the embryos had regenerated reduced sulfhydryls. Those proteins showing increased incorporation migrated at the same position by 2D PAGE as heat shock proteins, suggesting that diamide was inducing a stress response. Diamide also caused some developmental aberrations at low frequency, and reversibly inhibited ciliary beating.

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Genes referenced: LOC100887844 LOC583082