Three-dimensional structure of herring sperm protamine Y-I with the aid of dark field electron microscopy.
AUTOR(ES)
Ottensmeyer, F P
RESUMO
High resolution electron micrographs of herring sperm protamine (clupeine) Y-I provide sufficient detail to constrain the folding of the known amino-acid sequence of the protein into a unique three-dimensional configuration. The structure consists of a loose helix of turns of various sizes held together at one edge, spread apart along the other. This form appears to represent the shape of several fish protamines.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=388852Documentos Relacionados
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