ncrMT3949 MTB000079
ncRNA Fragment of putative small regulatory RNA
This is an RNA, not a coding gene: it belongs to a separate track and carries none of the protein evidence layers.
Location
4314798–4314891 (+ strand), 94 nt, on H37Rv
(NC_000962.3).
Overlaps: Rv3842c.
Upstream neighbour Rv3841
(75 bp).
Downstream neighbour Rv3843c
(677 bp).
Intra-MTBC variation
| Genomes surveyed | 145,209 |
| Variable sites | 79 |
| Variants reaching 0.1 % of genomes | 2 |
| Carriers of the most widespread variant | 46,919 |
Coverage control
Variant density inside this RNA: 84.0 sites/100 bp, versus 77.0 in the flanking ±500 bp (GC 61.7 %). The flanks act as an internal witness: if variants are called normally around the RNA but none becomes widespread inside it, the constraint is real rather than a sequencing gap.
Verdict: n/a (a des variants communs)
Predicted secondary structure
38.3 % of bases are paired in the minimum-free-energy fold (36 paired, 58 unpaired). Folded in isolation; the in vivo structure may differ (partners, co-transcriptional folding).
Legacy record
ncrMT3949, fragment of putative small regulatory RNA (See Pelly et al., 2012), cloned from M. tuberculosis CDC1551; supported by RNA-seq in H37Rv (unpublished data).
Sources
- Descriptive record (locus, name, product, comment, coordinates): Mycobrowser v5, stable RNAs (Kapopoulou et al. 2011, doi:10.1016/j.tube.2010.09.006).
- Intra-MTBC variation and coverage control: computed for this atlas over 145,209 genomes.
- Secondary structure: ViennaRNA 2.7.2, MFE fold.