title: The histones of the endosymbiont alga of Peridinium balticum (Dinophyceae).
abstract: The histones of the endosymbiont nucleus of the binucleate dinoflagellate Peridinium balticum were characterized by amino acid analysis and peptide mapping, and compared to calf thymus histones. Using these and various other criteria we have identified two H1-like histones as well as the highly conserved histones H3 and H4. A 13,000 dalton component in sodium dodecyl sulphate (SDS) gels can be separated into two components in Triton-containing gels. We suggest that these histones (HPb1 and HPb2) correspond to the vertebrate histones H2A and H2B, respectively.
authors.affiliation: Biology Department, Texas A&M University, College Station 77843.
authors.forename: P J
authors.initials: PJ
authors.lastname: Rizzo
authors.forename: R L
authors.initials: RL
authors.lastname: Morris
authors.forename: A
authors.initials: A
authors.lastname: Zweidler
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D004141:Dinoflagellida / Q000235:genetics*; D056890:Eukaryota / Q000235:genetics*; D006657:Histones / Q000235:genetics* / Q000302:isolation & purification; D008970:Molecular Weight; D010449:Peptide Mapping; D013559:Symbiosis
chemical_list: D000596:Amino Acids; D006657:Histones