• Family IS1595
  • Group ISH4
MGE type ISRelated element(s) :
Isoform ISH50Synonym(s)
Accession numberTranspositionOriginHost
Y Halobacterium salinarum
Halobacterium tunesiensis A2
Halobacterium salinarum PHH1 plasmid pHH1
Halobacterium salinarum NRC34020
Halobacterium salinarum NRL
Halobacterium salinarum GN101
DNA section
IS Length : 1000 bp


IR Length : 23/29


Insertion site

Left flankDirect repeatRight flankDR Length

DNA sequence

Protein section
ORF number : 0


ISH23 is very similar (but not identical) to ISH50 (Pfeifer et al., 1984): although two restriction sites are different between the two elements, their first and last 200 bp were found to identical (Pfeifer, 1993). ISH23 has been isolated through its inactivation of the bacteriorhodopsin (BR, bop) gene. There are 2 ISH23/ISH50 copies in the Halobacterium salinarum NRC817 chromosome (Pfeifer et al., 1986).
1] Pfeifer, F., Betlach, M., Martienssen, R., Friedman, J., and Boyer, H.W. (1983) Mol. Gen. Genet. 191, 182-188.
2] Pfeifer, F., Friedman, J., Boyer, H.W., and Betlach, M. (1984) Nucl. Acids Res. 12, 2489-2497.
3] Pfeifer, F. (1986) System. Appl. Microbiol. 7, 36-40.
4] DasSarma, S. (1989) Can. J. Microbiol. 35, 65-72.
5] Pfeifer, F., Blaseio, U., and Horne, M. (1989) Can. J. Microbiol. 35, 96-100.
6] Pfeifer, F., and Englert, C. (1992) J. Bioenergetics and Biomembranes 24, 577-585.<br>7] Pfeifer, F. (1993) Personal communication.