Identification of semen in stain by determination of the specific activity of l-tartrate-inhibitable acid phosphatase
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説明
For identification of semen in stain the specific activity of L-tartrate-inhibitable acid phosphatase (ACP) was determined. With each stain extract, both enzyme activity and protein concentration were determined, and the specific activity (enzyme activity/protein concentration) was calculated. Seminal stains showed a value of 23.8 +/- 15.2 (mean +/- SD) IU/mg protein, while vaginal fluid stains showed a value of 0.088 +/- 0.049 IU/mg protein. Stains of other body fluids did not show any L-tartrate-inhibitable ACP activity. Furthermore, only eight of 30 plant juice stains showed any levels of L-tartrate-inhibitable ACP, although all plants tested showed ACP activity. As the present method enables us to analyze forensic samples quantitatively, it seems to be useful for forensic practice.
収録刊行物
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- Zeitschrift f�r Rechtsmedizin
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Zeitschrift f�r Rechtsmedizin 102 1989-06-01
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