Distribution of Antigenicity in Chicken Erythrocyte Histone H5

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Abstract
The inhibitory strengths of 8 peptides from chicken histone H5 were compared to that of the parent protein (189 residues) in complement fixation by guinea pig anti-H5 serum complexed with the homologous histone. Two precisely delineated regions (residues 59 to 65 and 94 to 99) and 2 less-defined regions (between 66 and 93; 100 and 189) are depicted. The sequences of particular consequences are quite conserved in avian histone H5 while the most variable N-terminal portion of 31 residues has no inhibitory effect.