ISKpn1

  • Family IS3
  • Group IS150
MGE type ISRelated element(s) :
Isoform Synonym(s)
Accession numberTranspositionOriginHost
AF345899 Y Klebsiella pneumoniae
Klebsiella pneumoniae MGH78578
DNA section
IS Length : 1445 bp

Ends


IR Length : 22/24

IRL : TGGACTGCACCCCAAAAGTTGGACACCCAACTGAGTAAGGTGCAATTTTA
IRR : TGGACTGACCCCATAAAGTTGGATGGTTCATATTAAGCGGCTCTCAGAGC

Insertion site


Left flankDirect repeatRight flankDR Length
CCCGGCGGCGC/CTGGCTTGCCGGG5

DNA sequence

TGGACTGCACCCCAAAAGTTGGACACCCAACTGAGTAAGGTGCAATTTTATGGCTAAACCAAAGTATTCCCCTGAAACAAAACTGGCTGTGGTTAATCAT
TATTTGTCCGGTAAAGACGGAGAACAGAGTACAGCCGACCTTTTTGGTATTGAAAGAACATCTGTCCGTCGCTGGGTCAGGGCATGGCAGTTCCACGGTG
CAGAAGGCCTGACTGCAAAAAATAATCATTATTCCGATGAATTTAAACTCGTGGTCGTCCGGGCGGTTATCAGTGACCGCCTGACGATGCGTGAAGCGGC
TGCCCGGTTTAATCTCTCCGCAGAAATACTTGTCCGGCGCTGGCTCGACGTGTACAACGATGCCGGAGCGGAAGGTCTTTTAAACATGCAATGCGGACGG
CCCGGACAAATGACAAAGCCAAAAAATATCCCACCACTGACAGATAAAGAGCTGGAAAAACTCTCCCCCGAAGAGCTCAGGGCCGAACTGCGTTATCTGC
GGGCAGAGAATGCCTATCTAAAAAAGTTGAAAGCCTTGGTTCAGAGCGAAAAAAATGGCAAAAAGCCCTGATAATCAGTGAACTAAGGCATGAACACGCT
CTGCGGGACCTTCTGCGGGCGGCCGGTATGTCCCGTAGCACGTGGTATTACAATATGAATGCACTGAAGCAAGGGGACAGGTATGCGGGTCTTAAAGAGA
ACATCAGGAAGATATACCACTATCACAAAGGTCGTTATGGCTACCGCAGGATCACGCTCGCACTAAGAAAACAGGGGCTGCGGATAAACCATAAAACAGT
GCAGCGGCTGATGGCAGAACTGTCACTCCGGTCTGTGATAAGGGCGAAAAAATATCGTGCCTGGAAAGGGAGAACGGGCGAGGCCGCGCCCAATATCCTG
AGCCGGAACTTCGGTGCGTCAAAAGCCAACGAAAAATGGGTAACAGATGTGACAGAGTTCCCGGTACAGGGAAAAAAGCTTTACCTGTCGTCAGTTCTCG
ATCTGTTTAACCGGGAGGTTATCGCCTACAGCCTGTCGGAAAGGCCGGTGATGGAGATGGTGAATACGATGCTGGACGGTGCGTTCCCGAAGCTCAGACC
GGGAGATGCTCCGCTGCTGCACTCGGATCAGGGCTGGCATTACAGGATGAGGAGCTATCAGGAACGTTTAAAGGCGCATGGGATGACGCAGAGTATGTCG
CGTAAAGGAAACTGCCTGGATAATGCAGTGATGGAAAACTTCTTCGGGACCCTGAAATCGGAGTGTTTTTATCTGAGGGAGTTCAGGAGTGTCAGTGCGC
TAAGAAAAGCCGTAGAGGACTATATCCATTACTACAACAACGAGCGGATAAGCCTGAAATTAAAAGGCCTGAGTCCGGTAGAGTACCGAACCCAGGCTCT
GAGAGCCGCTTAATATGAACCATCCAACTTTATGGGGTCAGTCCA
Recoding section
  • Recoding by frameshift
  • Frame
  • Type
  • Experimentally demonstrated

Stimulators :

  • Shine-Dalgarno sequence :
  • Secondary structure :

Recoding motif :

Protein section
ORF number : 3

 

ORF 1
LengthBeginEndStrandFusion ORF
522 bp173 aa50571+No
ORF function : Transposase
Description : First part of the transposase

ORF sequence :

MAKPKYSPETKLAVVNHYLSGKDGEQSTADLFGIERTSVRRWVRAWQFHGAEGLTAKNNHYSDEFKLVVVRAVISDRLTMREAAARFNLSAEILVRRWLD
VYNDAGAEGLLNMQCGRPGQMTKPKNIPPLTDKELEKLSPEELRAELRYLRAENAYLKKLKALVQSEKNGKKP

 

Blast result :
ORF 2
LengthBeginEndStrandFusion ORF
966 bp321 aa4481413+No
ORF function : Transposase
Description : Second part of the transposase

ORF sequence :

RAGKTLPRRAQGRTALSAGRECLSKKVESLGSERKKWQKALIISELRHEHALRDLLRAAGMSRSTWYYNMNALKQGDRYAGLKENIRKIYHYHKGRYGYR
RITLALRKQGLRINHKTVQRLMAELSLRSVIRAKKYRAWKGRTGEAAPNILSRNFGASKANEKWVTDVTEFPVQGKKLYLSSVLDLFNREVIAYSLSERP
VMEMVNTMLDGAFPKLRPGDAPLLHSDQGWHYRMRSYQERLKAHGMTQSMSRKGNCLDNAVMENFFGTLKSECFYLREFRSVSALRKAVEDYIHYYNNER
ISLKLKGLSPVEYRTQALRAA

 

Blast result :
ORF 3
LengthBeginEndStrandFusion ORF
1364 bp454 aa501413+Yes
ORF function : Transposase
Chemistry : DDE

ORF sequence :

MAKPKYSPETKLAVVNHYLSGKDGEQSTADLFGIERTSVRRWVRAWQFHGAEGLTAKNNHYSDEFKLVVVRAVISDRLTMREAAARFNLSAEILVRRWLD
VYNDAGAEGLLNMQCGRPGQMTKPKNIPPLTDKELEKLSPEELRAELRYLRAENAYLKKVESLGSERKKWQKALIISELRHEHALRDLLRAAGMSRSTWY
YNMNALKQGDRYAGLKENIRKIYHYHKGRYGYRRITLALRKQGLRINHKTVQRLMAELSLRSVIRAKKYRAWKGRTGEAAPNILSRNFGASKANEKWVTD
VTEFPVQGKKLYLSSVLDLFNREVIAYSLSERPVMEMVNTMLDGAFPKLRPGDAPLLHSDQGWHYRMRSYQERLKAHGMTQSMSRKGNCLDNAVMENFFG
TLKSECFYLREFRSVSALRKAVEDYIHYYNNERISLKLKGLSPVEYRTQALRAA

 

Blast result :
Comments
ISKpn1 is 55% aa similar to IS1397 for ORF1 and 80% aa similar to IS150 for ORF2. There is a putative frameshift window at position 520-589.
This sequence is specifically inserted into the loop of a PU with a 3bp duplication.
ISKpn1 is present in fewer than 10 copies on the chromosomes of the strain cited below.
References
1] Wilde,C., Bachellier,S., Hofnung,M. and Clement,J.M. (2001). J.Bacteriol. 183 (15), 4395-4404