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. 1955 May 25;1(3):215-20.
doi: 10.1083/jcb.1.3.215.

Vitrosin: a member of the collagen class

J GROSS, G MATOLTSY, C COHEN

Vitrosin: a member of the collagen class

J GROSS et al. J Biophys Biochem Cytol. .

Abstract

Vitrosin, a fibrous protein obtained from the vitreous humor of the eye in the form of an indefinitely long fibril about 100 to 150 A in diameter, has been identified as a member of the collagen class of proteins. It is characterized by the collagen wide-angle x-ray diffraction pattern, and axial periodicity of about 640 A determined by electron microscopy and small-angle x-ray diffraction, an amino acid pattern characteristic of collagen as determined by paper chromatography, and a hydroxyproline and glycine content also typical of collagen. The glycine-hydroxyproline ratio is somewhat lower than that for most vertebrate collagens.

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