IS1548

  • Family ISAs1
  • Group
MGE type ISRelated element(s) :
Isoform Synonym(s)
Accession numberTranspositionOriginHost
Y14270 ND Streptococcus agalactiae
Streptococcus pyogenes MGAS6180
Streptococcus agalactiae Mc1 serotype III
DNA section
IS Length : 1316 bp

Ends


IR Length : 20/24

IRL : CACGCCAAACGCATGAAGAAACTTTTGTTTTCAGAAAACTAGATTCATAA
IRR : CACGCCGTACGCATGAAAACTTTCTCTTCATCCTTTTGTGCCCGGACATC

Insertion site


Left flankDirect repeatRight flankDR Length
GATTAACAAATC/GACCAATCCA/CCACTCTACTATTT14

DNA sequence

CACGCCAAACGCATGAAGAAACTTTTGTTTTCAGAAAACTAGATTCATAATGACAAAATCAATCAAAGTAGTACACTATAGATGAGGTGACTACGATGAT
TGATTTTATTATTTCTATTGATGATTGCGCAGTTGAATTGGATAGTCGTCAATCTTGGAAAATTCGCTACCCCTTATCAACCATTCTATTTCTTGTCTTC
GTTTGTCAGTTAGCTGGCATTGAAACCTGGAAGGAGATGGAAGATTTTATTGAAATGAATGAACCATTGTTTGCGACCTACGTTGATTTGAGTGAAGGTT
GTCCGTCTCATGATACCTTAGAGCGTGTGATTAGTCTTGTTAATTCAGACCGTTTAAAAGAGCTTAAAGTTCAATTTGAGCAATCATTGACAAGCTTAGA
TGCCGTTCATCAACTGATTTCAGTGGACGGTAAAACGATTCGAGGCAATCGAGGTAAAAATCAGAAGCCTGTTCATATTGTAACGGCTTATGATGGGGGT
CATCATCTTAGTTTGGGACAGGTAGCGGTTGAGGAGAAAAGTAATGAAATTGTTGCCATTCCTCAGTTATTGCGGACAATTGATATCCGTAAAAGCATTG
TAACGATAGACGCAATGGGCACGCAGACGGCTATCGTTGATACGATTATAAAAGGTAAAGCAGACTATTGCTTAGCCGTCAAAGGAAATCAAGAAACACT
TTATGATGATATTGCTCTTTATTTTAGTGATGTCAACTTATTGGAAGAACTCCAAGAAAATGCGCAGTATTATCAGACTGTTGAAAAATCTAGGGGACAG
ATTGAAGTTAGAGAATACTGGGTGTCTTCCGATATCAAATGGTTGTGTCAAAACCATCCCAAATGGCATAAGTTACGTGGTATTGGGATGACTCGTAACA
CGATTGATAAGGATGGTCAGCTGAGTCAAGAGAATCGTTATTTTATCTTTAGCTTTAAGCCGGATGTCCTCACATTTGCCAATTGTGTACGAGGTCATTG
GCAGATAGAGAGTATGCACTGGTTATTGGACGTTGTTTATCATGAAGATCATCATCAGACATTGGATAAAAGAGCCGCATTTAACCTAAATCTTATCCGA
AAAATGTGCTTATATTTTCTCAAAGTGATGGTATTTCCTAAAAAAGACCTCAGTTATCGTCGCAAACAACGGTATATTTCTGTCCATTTGGAAGATTATT
TAGTCCAATTATTTGGAGAAAGAGGCTAAGCAGATCATTGATTTAAAAAGGAATCTTTTCAAAATTGATGTCCGGGCACAAAAGGATGAAGAGAAAGTTT
TCATGCGTACGGCGTG
Protein section
ORF number : 2

 

ORF 1
LengthBeginEndStrandFusion ORF
1134 bp377 aa951228+No
ORF function : Transposase
Chemistry : Unknow

ORF sequence :

MIDFIISIDDCAVELDSRQSWKIRYPLSTILFLVFVCQLAGIETWKEMEDFIEMNEPLFATYVDLSEGCPSHDTLERVISLVNSDRLKELKVQFEQSLTS
LDAVHQLISVDGKTIRGNRGKNQKPVHIVTAYDGGHHLSLGQVAVEEKSNEIVAIPQLLRTIDIRKSIVTIDAMGTQTAIVDTIIKGKADYCLAVKGNQE
TLYDDIALYFSDVNLLEELQENAQYYQTVEKSRGQIEVREYWVSSDIKWLCQNHPKWHKLRGIGMTRNTIDKDGQLSQENRYFIFSFKPDVLTFANCVRG
HWQIESMHWLLDVVYHEDHHQTLDKRAAFNLNLIRKMCLYFLKVMVFPKKDLSYRRKQRYISVHLEDYLVQLFGERG

 

Blast result :
ORF 2
LengthBeginEndStrandFusion ORF
189 bp62 aa702890+No
ORF function : Passenger Gene
Annotation : Hypothetical proteinDescription :

ORF sequence :

MMILLFILVMSTYWKNSKKMRSIIRLLKNLGDRLKLENTGCLPISNGCVKTIPNGISYVVLG

 

Blast result :
Comments
The transposase of IS1548 is 52% similar to IS1358. The 14 bp DR are imperfect. Note that unlike the others member of the family IS1548 carries a second small ORF (62 aa) which shows no similarities with others proteins.
References
1] Granlund,M., Oberg,L., Sellin,M. and Norgren,M.(1998)J. Infect. Dis. 177 (4), 967-976
2] Granlund,M. (1998) Direct Submission GenBank