[Proceedings: Morphology of placenta in smokers].
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Biomedical subjects
Publications and source records attributed to W Ardelt.
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Some molecular properties of the elastase II preparation, homogenous in ultracentrifugation, have been determined. The molecular weight is 25 000, the sedimentation coefficient and the diffusion coefficient are 3.69-10(-13) s(-1) and 12.09-10(-7) cm2/s, respectively. The partial specific volume was 0.716 g/cm3, and the axial ratio is 1.95. Elastase II exhibited a considerably lower content of arginine, tyrosine, and valine, and a higher content of proline, serine and conjugated carbohydrates than elastase I. The N-terminal amino acid of the enzyme is leucine, and its isoelectric point was 10.7.
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