title: Characterisation of a Helicobacter pylori phage (HP1).
abstract: The infection of two Helicobacter pylori strains with a phage-containing supernate of the lysogenic H. pylori strain IMMi 290/89 resulted in a lytic cycle and propagation of phage HP1. In negatively-stained preparations, the empty phage heads measured 55-60 nm in diameter and mature heads measured 50 nm. The flexible, striated phage tail was c. 170 nm in length and 9.5 nm in diameter. The phage showed a mean density of 1.40 g/cm3 in sucrose-density gradients and contained double-stranded DNA c. 22,000 bp in length.
authors: Institute for Medical Microbiology, University of Essen, Germany.
authors: E
authors: E
authors: Heintschel von Heinegg
authors: H P
authors: HP
authors: Nalik
authors: E N
authors: EN
authors: Schmid
mesh_terms: D001435:Bacteriophages / Q000254:growth & development* / Q000302:isolation & purification / Q000648:ultrastructure; D004279:DNA, Viral / Q000302:isolation & purification; D016480:Helicobacter pylori; D008242:Lysogeny; D010948:Viral Plaque Assay; D014775:Virus Activation
chemical_list: D004279:DNA, Viral