Electrophoretic Variation of Hair Proteins

    November 1996 in “ PubMed ”
    Ernane José Xavier Costa, A C Estalote, M Palatnik
    TLDR Most people have similar hair protein patterns, but a rare variant was found in two women.
    The study conducted by E J Costa et al. in 1996 investigated the electrophoretic variation of hair proteins in 182 individuals, including some families. Hair proteins were extracted and analyzed using polyacrylamide gel electrophoresis, revealing 18 reproducible bands with molecular masses ranging from 10.0 to approximately 100 kDa. A "frequent profile" was identified in 180 individuals, characterized by 6 prominent bands, 4 of which were in the 40-70 kDa range typical of keratins, and 2 with lower molecular masses. An additional band was observed in 2 unrelated women, the significance of which was still under investigation at the time.
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