ISBcen3

  • Family IS110
  • Group IS1111
MGE type ISRelated element(s) :
Isoform Synonym(s)
Accession numberTranspositionOriginHost
ND Burkholderia cenocepacia
Burkholderia cenocepacia J2315
DNA section
IS Length : 1413 bp

Ends


IR Length : 13

IRL : taatggaATGGACGCCCCCGCCCGGCACGGCATCGATGTGCCAAAGTGGA
IRR : ----tacATGGACGCCCCCGTTTTGCCAGGTTCGCGGTGAGTGACGGTTC

Insertion site


Left flankDirect repeatRight flankDR Length
CGACCTCTGCTGACTTCTCG0
CGACCTCTGCTGACTTCTCG0

DNA sequence

TAATGGAATGGACGCCCCCGCCCGGCACGGCATCGATGTGCCAAAGTGGAAGTGTCAGCCACCACTTAACCAGAGGGAACGCTCATCATGAAGGTTACGA
CCGTTGGTATCGATCTGGCAAAGAACGTCTTTCAAATCCACGGCGTCGACGCGCACGGCAAAGCCGTCCTCAAGAAGCAGATCCGGCGCGATCAATTAAT
GCTGTTCTTCACGAATCTGCCAGCGTGCTTGATCGGCATGGAGGCCTGTGCCAGCGCGCATTACTGGGCACGACGCGTTCAAGAATGCGGACACACCGTT
CGACTAATGGCTCCGCAATTCGTTAAACCCTACGTCAAGACCAACAAGAACGATGCGGCCGATGCCGAAGCAATTTGCGAAGCCGTCGCTCGGCCCAACA
TGCGCTTCGTCCCCATCAAGACCGAATCGCAGCAGGCCGTCCTCGCCATACATCGCGCACGTCAGAGTTTCGTCAAGGCGCGCACCGCGCAAGCTAATCA
GATTCGTGGGCTCCTCGCCGAATTCGGCCTGGTGATTCCCCAAGGTATCGCCCACATCGCGCAACGCGTACCCGAACTGCTCGACTCCGACACTTGCGCC
TTGCCAGGCCCGTTTCGTCTCCTTGTGCTGCGCCTGATGGAGCATCTCAAGCTGCTCGATCAGCACGTTCGAGAACTCGAGACGCAAATTCAGACCTGGC
ACCGCGACAATCCCGCCAGCCGCAAACTTGCCGAGATTCCCGGCGTCGGGCCAATCACGGCAAGCGCACTGGTCGCGTCGATCGGCGATGCCAAGAACTT
CGAGAACGGCCGTCAACTGGCCGCTTGGCTTGGGCTGGTCCCTCGGCAACATTCCAGCGGCGGCAAATCGACCTTGCTGGGCATGAGCAAGCGAGGCGAC
TCCTACCTGCGCACGCTGCTCATCCACGGCGCGCGATCGGCCATCCTAGCCGCACAACGAAAGCCCGACACCGATAGCTGGCTGAGCCGCCTGCTAGGCC
GACGCCATCCCAACATCGCTGCCGTAGCCCTGGCCAGCAAGAATGCACGCGTCATATGGGCGTTGCTGGCTCACAACCAGCAGTTCCGACCGGGTTATGC
GACTGCCGCGGCAGTCGCATAACCCGGTCGGCTTGCAGTCGAACAAGACCGCTGCGACAAACTTTAGGAGCGACAAACCACCCGATTGCTCAGGCAAGCA
ATGCAGTGATGGCGAGACAGGTCAGACCGTGGCCGGCAAAACCCATAGAAGTCAGAGCACCTCAAGTGCGATCTGCTGATTGAGGAGCTGGCCAGCGTAT
TCCATCAGGGACAGCAGGCGTACGCCTGACATCAAAGTCCGGATGTATGGCTGCAATCGATGCCTTCGAACCGTCACTCACCGCGAACCTGGCAAAACGG
GGGCGTCCATGTA
Protein section
ORF number : 1

 

ORF 1
LengthBeginEndStrandFusion ORF
1035 bp344 aa881122+No
ORF function : Transposase
Chemistry : DEDD

ORF sequence :

MKVTTVGIDLAKNVFQIHGVDAHGKAVLKKQIRRDQLMLFFTNLPACLIGMEACASAHYWARRVQECGHTVRLMAPQFVKPYVKTNKNDAADAEAICEAV
ARPNMRFVPIKTESQQAVLAIHRARQSFVKARTAQANQIRGLLAEFGLVIPQGIAHIAQRVPELLDSDTCALPGPFRLLVLRLMEHLKLLDQHVRELETQ
IQTWHRDNPASRKLAEIPGVGPITASALVASIGDAKNFENGRQLAAWLGLVPRQHSSGGKSTLLGMSKRGDSYLRTLLIHGARSAILAAQRKPDTDSWLS
RLLGRRHPNIAAVALASKNARVIWALLAHNQQFRPGYATAAAVA

 

Blast result :
Comments
The IR of this IS are not at its termini. In the IS sequence as given 7 nt separate IRl from the left-hand end of the element and 3 nt separate IRr from the right-hand end. The first residue of the sequence may in fact belong as the final residue, giving 6 nt on the left and 4 on the right.

There are 2 copies of ISBcen3 in the Burkholderia cenocepacia J2315 genome. The transposase protein is 43% identical to that of IS1111.
The two copies are inserted at the same place in two introns.

By analogy with IS4321, ISBcen3 may exist in a circular form in which a -10 region created by the abutted terminal sequences and a -35 region located just inside the right-hand end of the element are correctly spaced to form a promoter.
References
1] The Welcome Trust Sanger Institute http://www.sanger.ac.uk
2] Partridge and Hall (2003) J. Bacteriol. 185, 6371-6384