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ORF-less bacterial introns

Clicking on the intron name in the “Species” column brings up full information for individual introns, including intron sequence, GenBank annotation, flanking sequence,  and intron RNA structure. Other links in the Table provide additional information. The table is adapted from Dai et al. (2002), which can be consulted for more detailed description of the table. Also, a description of the content of the table can be found here.

ORF-less bacterial introns in Eubacteria

ORF-less bacterial introns in Archaebacteria

Eubacteria

Species Host gene Locus Size Intron Structure Type

Accession Number

Bacillus cereus (B.c.I7b) None Plasmid pE33L466 827 bp B CP000040 (3829-4655)
Bacillus thuringiensis (B.th.I2)

      Hypothetical  protein

Plasmid pAW63 949 bp B DQ025752 (16908-17856)
Burkholderia xenovorans (Bu.xe.I3) None Chromosome 826 bp B1 CP000270 (790064-790889)
Clostridium perfringens (Cl.pe.I2) Cpa Chromosome 834 bp B DQ787115 (1-834)
Onion yellows phytoplasma (OYPI2) None Chromosome 735 bp A1 AP006628 (544682-545416)
Thermosynechococcus elongatus BP-1 (Th.e.I2-1) ORF of Th.e.I1  Chromosome 839 bp B1 BA000039 (27972-28810)
Thermosynechococcus elongatus BP-1 (Th.e.I4-1) None Chromosome 845 bp  B1 BA000039 (219750-220594)
Thermosynechococcus elongatus BP-1 (Th.e.I4-2) Putative glycosyltransferase gene Chromosome 845 bp B1 BA000039 (2466031-2465187)
Thermosynechococcus elongatus BP-1 (Th.e.I5) None Chromosome 846 bp B1 BA000039 (245778-246623)
Thermosynechococcus elongatus BP-1 DNA (Th.e.I6) None  Chromosome 1684 bp  B1 BA000039 (444131-445814)
Thermosynechococcus elongatus BP-1 (Th.e.I9) None Chromosome 838 bp B1 BA000039 (1159085-1159922)
Thermosynechococcus elongatus BP-1 (Th.e.I10-1) Putative transposase Chromosome

850 bp

B1 AP005374 (77764-78613)
Thermosynechococcus elongatus BP-1 (Th.e.I10-2) Putative transposase Chromosome 850 bp B1 AP005376 (69318-70167)
Thermosynechococcus elongatus BP-1 (Th.e.I11-1) None  Chromosome 846 bp B1 BA000039 (1683646-1684491)

 


Archaebacteria

 

Species Host gene Locus Size Intron Structure Type Accession Number
Methanosarcina acetivorans (M.a.I4-1)  None Chromosome 954 bp B1 AE010299 (2452061-2453014)
Methanosarcina acetivorans (M.a.I4-3) Transposase Chromosome 755 bp B1 AE010299 (3665833-3666587)
Methanosarcina acetivorans (M.a.I6-1) Conserved region/hypothetical protein Chromosome 622 bp B AE010299 (4030024-4030645)
Methanosarcina acetivorans (M.a.I6-2) Conserved region/hypothetical protein Chromosome 619 bp B AE010299 (2118880-2119498)
Methanosarcina acetivorans (M.a.I6-3)  Conserved region/hypothetical protein Chromosome 619 bp B AE010299 (4143574-4144192)

 


 

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