title: Histones are the major chromosomal protein components of the sperm of the nemerteans Cerebratulus californiensis and Cerebratulus lacteus.
abstract: We have characterized for the first time the sperm nuclear basic proteins (SNBP) from two species of nemerteans: Cerebratulus californiensis and Cerebratulus lacteus. Gel electrophoretic and chromatographic (RP-HPLC) analysis of the nuclear sperm extracts indicate that histones are the major protein components which are present. The linker histones (histones of the H1 family) exhibit a rather unusual composition and some of them contain cysteine. Several histone H1 isoforms are present, one of which has a composition similar to that of other H1 histones found in the sperm chromatin of other groups of lower invertebrates.
authors.affiliation: Department of Biochemistry and Microbiology, University of Victoria, Victoria V8W 3P6, British Columbia, Canada.
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Ausió
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid; D004587:Electrophoresis, Agar Gel; D006657:Histones / Q000032:analysis / Q000737:chemistry*; D007448:Invertebrates / Q000502:physiology*; D008297:Male; D009687:Nuclear Proteins / Q000032:analysis*; D013094:Spermatozoa / Q000737:chemistry*
chemical_list: D006657:Histones; D009687:Nuclear Proteins