6533b853fe1ef96bd12acbf0

RESEARCH PRODUCT

Synthesis of heat-shock proteins in developing sea urchins.

Maria Carmela RoccheriMaria Di BernardoGiovanni Giudice

subject

animal structuresDactinomycinHot TemperatureHatchingEmbryoCell BiologyGastrulaBiologySea urchin embryoCell biologyGastrulationMolecular WeightHeat shock proteinProtein BiosynthesisSea Urchinsembryonic structuresBotanymedicineProtein biosynthesisDactinomycinAnimalsMolecular BiologyHeat-Shock ProteinsDevelopmental Biologymedicine.drug

description

Heating sea urchin embryos at 31°C greatly reduces the synthesis of the bulk proteins, whereas it highly stimulates the synthesis of some new proteins, the main ones being two closely migrating proteins of about 70,000 daltons. The production of heat-shock proteins is obtained only if the embryos are heated after hatching. Stages which produce heat-shock proteins survive heating, whereas earlier stages, not producing heat-shock proteins, do not survive. Heat-shock proteins are not produced in the presence of actinomycin D.

10.1016/s0012-1606(81)80020-6https://pubmed.ncbi.nlm.nih.gov/7239007