Table 3.
Compilation of repetitive npcRNA candidates in S. typhi
| npcRNAs | cDNA (nt) | Repeats | Presence E. coli | N. Blot S. typhi /E. coli | Growth reg. S. typhi /E. coli | Comments | Acc. No. |
|---|---|---|---|---|---|---|---|
| Intergenic repetitive npcRNAs | |||||||
| StyR-24 | 102 | 26× | No | −/− | −/− | Downstream from ORF of IS200 transposase | FJ746424 |
| StyR-44 | 109 | 7× | Yes | +/+ | +/+ | Part of ribosomal operon | FJ746425 |
| StyR-184 | 84 | >22× | Yes | −/− | −/− | FJ746429 | |
| StyR-195 | 83 | >30× | Yes | +/+ | −/− | FJ746430 | |
| StyR-207 | 122 | 2× | Yes | +/+ | +/− | FJ746431 | |
| StyR-327 | 53 | 8× | No | +/− | +/− | FJ746433 | |
| StyR-329 | 120 | >20× | Yes | +/− | −/− | FJ746434 | |
| StyR-215 | 62 | 7× | Yes | +/+ | +/+ | Upstream to ribosomal operon | FJ746432 |
| Antisense repetitive npcRNAs | |||||||
| StyR-90 | 90 | 2× | Yes | +/− | +/− | FJ746426 | |
| StyR-103 | 108 | 26× | No | +/− | +/− | Antisense to ORF of IS200 transposase | FJ746427 |
| StyR-137 | 46 | 2× | Yes | +/− | +/− | Derived from SPI-7 | FJ746428 |
npcRNAs, reference identifications of S. typhi npcRNA candidates; cDNA (nt), length of cDNA clones in nt; Repeats, number of copies in the S. typhi TY2 genome (AE014613); Presence in E. coli, npcRNA is present (Yes) or not present (No) in E. coli K12 genome; N. blot S. typhi/E. coli, northern blots were positive (+) or negative (−) for the given transcript; Growth phase S. typhi/E. coli, npcRNA was (+) or was not (−) growth phase-regulated; Acc. No., accession number of npcRNA sequence in DDBJ/EMBL/GenBank databases.