title: The identification by sequence homology of stage-specific sea urchin embryo histones H1.
abstract: The histone H1 fraction from gastrula of the sea urchin Parechinus angulosus consists of a multitude of polypeptides with different electrophoretic mobilities. The synthesis of these proteins is programmed. Amino acid composition, electrophoretic properties and sequence homologies identify these as isohistones H1. One of these isohistones atypically binds the non-ionic detergent Triton X-100.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D004591:Electrophoresis, Polyacrylamide Gel; D004625:Embryo, Nonmammalian / Q000502:physiology; D006657:Histones / Q000235:genetics* / Q000302:isolation & purification; D010446:Peptide Fragments / Q000032:analysis; D012617:Sea Urchins / Q000254:growth & development*; D013045:Species Specificity
chemical_list: D006657:Histones; D010446:Peptide Fragments