|
Type Species |
(H) |
The host is an archaebacterium. Phage DNA has a pac site and is circularly permuted and terminally redundant.
Virions have isometric heads of 64 nm in diameter, tails of 170 
18 nm, and short tail fibers.
Physicochemical and Physical Properties
Not known.
Genomes are about 59 kbp in size and have a G+C content of 64%. Cytosine is replaced by 5-methylcytosine.
Virions have three major proteins (Mr 20, 45, and 70 103) and 10 minor components.
Not known.
Not known.
Genome Organization and Replication
Genomes are partially circularly permuted and terminally redundant (about 3%) and have a pac site. Halobacterium phage H (H) DNA is markedly variable. All DNAs harbor one or more insertion elements, and populations also include ordinary deletion and insertion variants. Early transcription is regulated by viral antisense mRNA. Replication results in formation of concatemers. Cutting of concatemers at pac sites is inaccurate and produces DNA molecules with imprecisely defined ends.
Not known.
Phages are temperate, specific for halobacteria, and require the presence of 3.5 M NaCl. Prophages persist as plasmids and are not UV-inducible.
List of Species Demarcation Criteria in the Genus
Not applicable.
Official virus species names are in italics. Tentative species names, alternative names ( ), strains or serotypes are not italicized. Virus names and assigned abbreviations ( ) are:
|
Halobacterium phage H |
(H) |
Tentative Species in the Genus
|
Halobacterium phage Hs1 |
(Hs1) |
List of Unassigned Species in the Family
|
Acinetobacter phage A3/2 |
(A3/2) |
|
Acinetobacter phage A10/45 |
(A10/45) |
|
Acinetobacter phage BS46 |
(BS46) |
|
Acinetobacter phage E14 |
(E14) |
|
Actinomycetes phage SK1 |
(SK1) |
|
Actinomycetes phage 108/016 |
(108/016) |
|
Aeromonas phage Aeh2 |
(Aeh2) |
|
Aeromonas phage 29 |
(29) |
|
Aeromonas phage 51 |
(51) |
|
Aeromonas phage 59.1 |
(59.1) |
|
Alcaligenes phage A6 |
(A6) |
|
Bacillus phage Bace-11 |
(Bace-11) |
|
Bacillus phage CP-54 |
(CP-54) |
|
Bacillus phage G |
(G) |
|
Bacillus phage MP13 |
(MP13) |
|
Bacillus phage PBS1 |
(PBS1) |
|
Bacillus phage SP3 |
(SP3) |
|
Bacillus phage SP10 |
(SP10) |
|
Bacillus phage SP15 |
(SP15) |
|
Bacillus phage SP50 |
(SP50) |
|
Bacillus phage Spy-2 |
Spy-2) |
|
Bacillus phage Spy-3 |
(Spy-3) |
|
Bacillus phage SST |
(SST) |
|
Clostridium phage HM3 |
(HM3) |
|
Clostridium phage CE |
(CE) |
|
Coryneform phage A19 |
(A19) |
|
Cyanobacteria phage AS-1 |
(AS-1) |
|
Cyanobacteria phage N1 |
(N1) |
|
Cyanobacteria phage S-6(L) |
(S-6(L)) |
|
Enterobacteria phage FC3-9 |
(FC3-9) |
|
Enterobacteria phage Kl9 |
(Kl9) |
|
Enterobacteria phage 01 |
(01) |
|
Enterobacteria phage ViI |
(ViI) |
|
Enterobacteria phage 92 |
(92) |
|
Enterobacteria phage 121 |
(121) |
|
Enterobacteria phage 16-19 |
(16-19) |
|
Enterobacteria phage 9266 |
(9266) |
|
Lactobacillus phage fri |
(fri) |
|
Lactobacillus phage hv |
(hv) |
|
Lactobacillus phage hw |
(hw) |
|
Listeria phage A511 |
(A511) |
|
Listeria phage 4211 |
(4211) |
|
Mollicutes phage Br1 |
(Br1) |
|
Mycobacterium phage I3 |
(I3) |
|
Pseudomonas phage PB-1 |
(PB-1) |
|
Pseudomonas phage PS17 |
(PS17) |
|
Pseudomonas phage KZ |
(KZ) |
|
Pseudomonas phage W-14 |
(W-14) |
|
Pseudomonas phage 12S |
(12S) |
|
Rhizobium phage CM1 |
(CM1) |
|
Rhizobium phage CT4 |
(CT4) |
|
Rhizobium phage m |
(m) |
|
Xanthomonas phage XP5 |
(XP5) |
|
Vibrio phage kappa |
(kappa) |
|
Vibrio phage 06N-22P |
(06N-22P) |
|
Vibrio phage VP1 |
(VP1) |
|
Vibrio phage II |
(II) |
Phylogenetic Relationships within the Family
Not available.
See the paragraph “Similarity with Other Taxa” in the Caudovirales description for further details.
|
|  |
H-like Viruses”