Polymorphism of complement factor I: population study in Japanese and phenotyping in bloodstains.
Polymorphism of the complement component factor I (IF) was investigated in 645 unrelated Japanese individuals using isoelectric focusing and immunoblotting. The allele frequencies were IF*A = 0.1031 and IF*B = 0.8969. The population data fitted the Hardy-Weinberg law. Phenotyping was also possible from bloodstains stored at 37 degrees C for up to 1 week, at room temperature for up to 2 weeks and at 4 degrees C for up to 5 weeks. The IF system can be a useful supplement for the medicolegal identification of bloodstains, but seems useless in Caucasoids.
Dobashi
Y
Y
Forensic Science Laboratory, Yamanashi Prefectural Police Headquarters, Kofu, Japan.
Hashimoto
K
K
Komatsu
N
N
Kido
A
A
Kimura
Y
Y
Oya
M
M
D001801:Blood Stains; D003172:Complement C1 / Q000235:genetics*; D005787:Gene Frequency; D006801:Humans; D007525:Isoelectric Focusing; D007564:Japan; D010641:Phenotype; D011110:Polymorphism, Genetic
D003172:Complement C1