ISH50

  • Family IS1595
  • Group ISH4
MGE type ISRelated element(s) :
Isoform Synonym(s) ISH4
Accession numberTranspositionOriginHost
X01584 Y Halobacterium salinarum
Halobacterium salinarum PHH1
Halobacterium tunesiensis
Halobacterium salinarum NRC-1 plasmid pNRC100
Halobacterium salinarum R1 plasmid pHH1
DNA section
IS Length : 996 bp

Ends


IR Length : 23/29

IRL : CGCTCTTGGGTAGAGGATTGTTGGTCAGTTCTCAGCAGTAGCTGGAAGTC
IRR : CGCTCTTGTGGCGGAGATTGTTGGTGAGTCATAGCGCAGTCTCAAGGATC

Insertion site


Left flankDirect repeatRight flankDR Length
ATCGTAGTATTTGTGGATAATTCAACTC8

DNA sequence

CGCTCTTGGGTAGAGGATTGTTGGTCAGTTCTCAGCAGTAGCTGGAAGTCACAGCAGGCAAGGGTGACGCGGCCGGCTCAGACGAACGATGATGCCAATC
AAGACATTCGTCTCGGAGCGTCGCGCCGCGAATCTGCTAGCACAGATACGCTGCGTAACGCGGTCTATTGCCGCGAGCTGCCGTGCCGAACTCTGTGACT
TCGGTACGGGCACGTATCGCGTGTTTCAGCGGTATCTGTGTAAGGATTGCGACCGCACGTTCAACGATCAGACTGGCACCGTCTTCGAACACTCTGCGGT
CGCGCTCAGAAAGTGGTTTCTCGCCGTCTACACCTACATCCGCTTAAACACGAGTATCAGGCAGTTAGACGCAGAGATCGACGTTTCCTACAAGACGGTC
TACCGGTCACGGCGCTTCCTGCGACGCGTGGACGCGCCTCGACCACACCTCGAAGGCCCCGTTGAGATCGACGAATTCTACGTTGAAAGCGGGCCTCAAG
GGCGCGAGCGCGACCAACCGTCGCGTGCGGGACTGTCCACGGCGGACGTTGGAACATACGCTGAGGATAAGCTCCCTGTGTTTGTTCTCGCAGATCGTGG
CACCGGAGAACGGCACGTGATCCCGGCGAAAGCCGCGACCGAATCGCGGATTCGACTCCTGCTGGCCGACCGACAGCAGGAGTCGTTAACCGTCTACACA
GACGGCTTTCGGGCGTACGATCCACTTGACGAGGACGACGCTTTCACCCGTGAATACGTCGTCCACGGTGACGGCGAGTACGTCAATGGAGACGTTCATG
TGAACACCTGCGAGAGCACGCGTCGCTGGCGCGACGGTGGCTCTCGCCGCACCGAGGCGTCTCTAAAGACAGACTCACACCATATCTCCGGCGTTTCAGC
TCCGACGTGAAGTGTTCCGAAAACCGGGGAAAGAAGCGCTCAAAACGATCCTTGAGACTGCGCTATGACTCACCAACAATCTCCGCCACAAGAGCG
Protein section
ORF number : 1

 

ORF 1
LengthBeginEndStrandFusion ORF
822 bp273 aa89910+No
ORF function : Transposase
Chemistry : DDE

ORF sequence :

MMPIKTFVSERRAANLLAQIRCVTRSIAASCRAELCDFGTGTYRVFQRYLCKDCDRTFNDQTGTVFEHSAVALRKWFLAVYTYIRLNTSIRQLDAEIDVS
YKTVYRSRRFLRRVDAPRPHLEGPVEIDEFYVESGPQGRERDQPSRAGLSTADVGTYAEDKLPVFVLADRGTGERHVIPAKAATESRIRLLLADRQQESL
TVYTDGFRAYDPLDEDDAFTREYVVHGDGEYVNGDVHVNTCESTRRWRDGGSRRTEASLKTDSHHISGVSAPT

 

Blast result :
Comments
ISH50 has been isolated through its inactivation of the gvp operon (gas vesicle proteins, Vac-). ISH50 is extensively homologous (but not identical) to ISH23 (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). There are 2 ISH23/ISH50 copies in the Halobacterium salinarum NRC817 chromosome (Pfeifer et al., 1986).
96% DNA and 86% aa homologous with ISH50 (ISH4 is longer than ISH50)
References
1] Sapienza, C., Rose, C., and Doolittle, W. F. (1982) Nature 299, 182-185
2] Xu, W.-L., and Doolittle, W. F. (1983) Nucl. Acids Res. 11, 4195-4199.
3] Pfeifer, F., Friedman, J., Boyer, H.W., and Betlach, M. (1984) Nucl. Acids Res. 12, 2489-2497.
4] DasSarma, S. (1989) Can. J. Microbiol. 35, 65-72.
5] Ng, W.-L., Kothakota, S., and DasSarma, S. (1991) J. Bacteriol. 173, 1958-1964.
6] Pfeifer, F. (1993) Personal communication.