Comparison of Detection of Six Serum Protein Groups from Aged Bloodstains

Abstract

Six serum protein groups (HP, TFC, GC, AHSG, C6, and C1R) from bloodstains stored at room temperature, were examined using slab gel electrophoresis for HP, and isoelectric focusing electrophoresis for TFC, GC, AHSG, C6, and C1R.   Three serum protein groups (TFC, GC, AHSG) were correctly detected in large percentage of stain samples, but correct detection rate of HP was in small percentage. Two serum protein groups (C6, C1R) were not detected from stain samples.   In particular, GC type is one of the most useful markers for forensic practice, since it has a well balanced gene frequency, stability against severe condition, and accurate detectability.