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canvas prints nail canvas prints keratin canvas prints protein canvas prints fibrous protein canvas prints biology canvas prints biochemistry canvas prints proteomics canvas prints illustration canvas prints biochemical canvas prints biological canvas prints no-one canvas prints nobody canvas prints white background canvas prints structure canvas prints expanded canvas prints

photographs nail photos keratin photos protein photos fibrous protein photos biology photos biochemistry photos proteomics photos illustration photos biochemical photos biological photos no-one photos nobody photos white background photos structure photos expanded photos

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Structure of keratin. Illustration of the structure of the protein keratin, as found in strands of hair. At top, the smallest unit shown here is the alpha helix of the protein. These combine to form a protofibril (upper centre), which in turn combine to form a microfibril (lower centre). These form macrofibrils which are shown in a hair cell (bottom) within a strand of hair. Keratin is also found in skin and nails. For this artwork with labels, see image C023/8711.

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