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Polyhydroxybutyrate is a microbial polyester that can be produced from renewable resources, and is degraded by the enzyme polyhydroxybutyrate depolymerase. The crystal structures of polyhydroxybutyrate depolymerase from Penicillium funiculosum and its S39 A mutant complexed with the methyl ester of a trimer substrate of (R)-3-hydroxybutyrate have been(More)
The hypoxia condition was expected to be suitable for the establishment and maintenance of human dental pulp cells (hDPCs), because they reside in a low-oxygen environment in vivo. Therefore, we presently examined the effects of hypoxia on the proliferation and differentiation of hDPCs in vitro. hDPCs grown under 3% O(2) showed a significantly higher(More)
Notch is a transmembrane protein involved in cell fate determination. In the present study, we observed temporally and spatially restricted expression of Notch1 in developing cartilage. Notch1 was localized starting from the mesenchymal condensation stage of embryonic mouse forelimbs. Interestingly, although localization could not be detected in the(More)
A DNA fragment carrying the gene encoding poly(3-hydroxybutyrate) (P(3HB)) depolymerase was cloned from the genomic DNA of Marinobacter sp. DNA sequencing analysis revealed that the Marinobacter sp. P(3HB) depolymerase gene is composed of 1734bp and encodes 578 amino acids with a molecular mass of 61,757Da. A sequence homology search showed that the deduced(More)
The immunohistochemical localization of nine different neuropeptides was studied in the central nervous system of the amphioxus, Branchiostoma belcheri. In the brain, perikarya immunoreactive for urotensin I and FMRFamide were localized in the vicinity of the central canal. One of the processes of each of these perikarya was found to cross the dorso ventral(More)
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