ISMmg1

  • Family IS110
  • Group IS1111
MGE type ISRelated element(s) :
Isoform Synonym(s)
Accession numberTranspositionOriginHost
ND Magnetospirillum magnetotacticum
Magnetospirillum magnetotacticum MS-1
DNA section
IS Length : 1359 bp

Ends


IR Length : 12

IRL : tttatggATGGCCCGCCCCTCACCGGGCTGCCCTGCTAGCCTTGCAGGGT
IRR : ----cgtATGGCCCGCCCCGTCCGCAAGTGGCTCTGGATCCGCTGGTCTG

Insertion site


Left flankDirect repeatRight flankDR Length

DNA sequence

TTTATGGATGGCCCGCCCCTCACCGGGCTGCCCTGCTAGCCTTGCAGGGTCGCTAAGTTGAAGGGATGGAGCGGGACGATGACGATCGCGGTGCTGGGGA
TCGATCTGGGCAAGAACAGCTGCAGCCTGGTCGGGCTGGACGGGACTGGGCGGGTCGTGCTGCGCCGCCGGATGCGGCGCGAGACGGTGATCGCCTTCAG
CGCGAAGTTGCCGGGGTGCGTCGTGGCAATGGAGGCGTGCTGCGGTGCGCACCACATGGGCCGAGCCCTCGTGGAGCAGGGGCACACGGTCCGACTGATG
TCGCCGGAATACGTGCGCCCGTACGTCAAGGCGCAGAAGAACGACGACCGCGACGCCGAAGCCATCGCCGAGGCGGCCACCCGCCCAACGATGCGGTTCG
TGGCGCTCAAATCCGAGGCGCAGCTCGACGTGCAGACCCTGCACCGGGTCCGCGACCAGCTCGTGGGCGAGCGCACGGCGCTGATGAACCAGGTCCGCGC
CATCCTTCTGGAGCGCGGCTATGTGGTAGCGCAGGGGCGGGCCAAGCTGGCTGCCTGTCTAACCGAGTTACTCGACACGGAGGCGGGCTCCTCCCTCACA
GCGCGCATGCGCACCCTTGTGGCGGAGGTGCGCGAGCGCTGGCAGAGCCTCGACCGGCGCATCGCCGCGCTGGATGCCGAGTTCGCCGAGCAGGCGCGCA
CGGACGAGAACGCGCGGCGGCTGACGACCATCCCGGGCATCGGCGCGCTCAACGCGACCGCGCTGGTTGCGGCCATCGGCGACGTGGCCACCTTCGCGCG
CGGGCGCGACCTGGCAGCCTGGCTCGGCCTCGTACCGCGGCAGGTCACGACCGGAGGGAAGCCCAAGCTCGTCGGCATCACCAAGCGCGGCAGCAAGTAC
CTGCGCAAGACGCTCATCCAGGGCGCCCGGGCCGCGATGCCGACGCTCCGGCAGGGTGACACGCGGCTCGGGCAGTGGCTGCGCGGGTTGCTGGCGCGAG
CGCACACCAACACGGCGGTGGTGGCATTGGCAGCCAAGATGGCGCGCATCGTCTGGGCGCTGCTGCGCCACGGGCGCGTCTACGAGGCAACGGCCGTAGC
CGCCTGATCCGAGTTCGGCCGGCGCGGCGGGCGCCGGCCTTCCGACGTCTGCGAGCGGTGAGAGGAAGATGGCCTGACAGTCGACCGGTGTTCTGGAAGC
CTCCCGGCAAAAATGGCGCATGACGCCGACCCCTTTATGAGGCCCAGGACGCGCGGATCTCCATCTTGGCCAACGGCTCTGCCAGAAGGCCGGATACGTT
TATGCAGACTGCTCAGACCAGCGGATCCAGAGCCACTTGCGGACGGGGCGGGCCATACG
Protein section
ORF number : 1

 

ORF 1
LengthBeginEndStrandFusion ORF
1029 bp342 aa791107+No
ORF function : Transposase
Chemistry : DEDD

ORF sequence :

MTIAVLGIDLGKNSCSLVGLDGTGRVVLRRRMRRETVIAFSAKLPGCVVAMEACCGAHHMGRALVEQGHTVRLMSPEYVRPYVKAQKNDDRDAEAIAEAA
TRPTMRFVALKSEAQLDVQTLHRVRDQLVGERTALMNQVRAILLERGYVVAQGRAKLAACLTELLDTEAGSSLTARMRTLVAEVRERWQSLDRRIAALDA
EFAEQARTDENARRLTTIPGIGALNATALVAAIGDVATFARGRDLAAWLGLVPRQVTTGGKPKLVGITKRGSKYLRKTLIQGARAAMPTLRQGDTRLGQW
LRGLLARAHTNTAVVALAAKMARIVWALLRHGRVYEATAVAA

 

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.

The transposase protein is 41% identical to that of IS1111.

By analogy with IS4321, ISMmg1 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] US Department of Energy Joint Genome Institute http://jgi.doe.gov/JGI_microbial/html
2] Partridge and Hall (2003) J. Bacteriol. 185, 6371-6384