Rv2273 Still unknown · low auto-curated
H37Rv Rv2273 · MTBC0 mtbc0_002415 ·
109 aa · 2572207–2572536 (+) ·
RefSeq NP_216789.1
Annotation: from legacy to revised
| Legacy (H37Rv / Mycobrowser) | transmembrane protein |
|---|---|
| MTBC0 PGAP re-annotation | DUF202 domain-containing protein |
| Revised (this work) | Conserved hypothetical protein; DUF domain(s) DUF202. Function unknown. |
Auto-curated: this verdict and function were generated by rules from PGAP + Pfam + Foldseek and have not been hand-reviewed.
Curated reference (UniProt)
| UniProt |
P9WLF3
SwissProt · reviewed
· Predicted
|
|---|---|
| UniProt name | Uncharacterized protein Rv2273 |
UniProt still lists this protein as Uncharacterized protein Rv2273; the revised annotation above is ahead of the current UniProt record.
Functional vocabulary (eggNOG-mapper, orthology transfer)
| COG category |
S Function unknown
|
|---|---|
| eggNOG description | Domain of unknown function (DUF202) |
| Orthologous group | 2DG81 |
Orthology-based transfer (eggNOG 5.0.2, diamond). EC/KO/GO/CAZy are computed annotations, not manual curation; cross-check against the primary literature before treating a specific reaction as established.
Conservation & selection (intra-MTBC, 145 209 strains)
| pN/pS | 0.813 · relaxed/neutral |
|---|---|
| Polymorphic sites (≥ 0.1% of strains) | 1 synonymous, 2 missense, 0 nonsense, 1 frameshift |
| Disruption | 1 distinct premature-stop/frameshift site(s); most common in 0.24% of strains (355) · clonal |
pN/pS from segregating SNPs (singletons removed) normalised by possible sites. Low pN/pS = purifying selection (a strong signal that a "hypothetical" is a real, constrained gene). A high pN/pS is ambiguous: relaxed constraint or positive selection (drug resistance, antigenic variation) inflate it; e.g. rpoB/katG/pncA score high here for resistance, not loss of function. A clonal disruption (one allele over a clade) suggests lineage pseudogenisation; a convergent one (many independent alleles) is typical of resistance loss-of-function.
Domains (Pfam, hmmscan --cut_ga)
| Pfam | Accession | i-Evalue | Residues | Description |
|---|---|---|---|---|
DUF202 | PF02656.21 | 2.2e-13 | 10–73 | Domain of unknown function (DUF202) |
Functional interaction network (STRING v12, guilt-by-association)
Closest characterised functional partner: Rv2272 (transmembrane protein), high confidence from genomic context alone (score 896 excluding text-mining).
| Partner | Product | Score | No text-mining | Channels (≥400) |
|---|---|---|---|---|
Rv2272 |
transmembrane protein | 985 | 896 ctx | neighborhood:882 textmining:870 |
Rv2271 hyp |
hypothetical protein | 539 | 538 ctx | neighborhood:534 |
Rv2270 lppN |
lipoprotein LppN | 414 | 414 ctx | neighborhood:412 |
Rv3777 |
oxidoreductase | 807 | 64 | textmining:803 |
Rv2243 fabD |
malonyl CoA-acyl carrier protein transacylase | 511 | 44 | textmining:510 |
Rv2779c |
Lrp/AsnC family transcriptional regulator | 652 | 41 | textmining:652 |
Rv3549c |
short-chain type dehydrogenase/reductase | 440 | 41 | textmining:440 |
STRING combines evidence channels (neighborhood, fusion, cooccurrence, coexpression, experimental, database, text-mining) into a 0–1000 score. The ctx badge marks edges carried by the genomic-context channels (conserved neighborhood, fusion, phylogenetic co-occurrence), which are independent of orthology and structure and the strongest signal for an unknown gene. The no text-mining column recomputes the score from data alone, so a link that does not depend on the literature is visible. Association is a function hypothesis, not proof: corroborate with the operon context and the primary literature before assigning a function.
Evidence
- Legacy H37Rv annotation: transmembrane protein
- MTBC0 PGAP product: DUF202 domain-containing protein
- Pfam (hmmscan --cut_ga): DUF202 PF02656.21 (E=2e-13)
- (auto-curated by rules from PGAP + Pfam + Foldseek; not hand-reviewed)
Sources
- Ancestral sequence & coordinates: Harrison LB et al. (2024), An imputed ancestral reference genome for the MTBC, doi:10.1101/2023.09.07.556366
- Product annotation: NCBI PGAP on MTBC0; legacy from H37Rv NC_000962.3 (RefSeq NP_216789.1)
- Domains: Pfam-A via hmmscan --cut_ga — DUF202 (PF02656.21)
- Sequence-level signal: ESM Atlas (EvolutionaryScale × BioHub) — exploratory
- Controlled vocabulary: eggNOG-mapper 2.1.12 (Cantalapiedra et al. 2021,
doi:10.1093/molbev/msab293), eggNOG 5.0 DB
(Huerta-Cepas et al. 2019) — OG
2DG81 - Curated reference: UniProt P9WLF3 (SwissProt, reviewed; Predicted)
- Intra-MTBC selection: pN/pS and disruption from SPDI variants of 145 209 MTBC strains (this work, local collection vs H37Rv NC_000962.3)
- Interaction network: STRING v12.0 (Szklarczyk et al. 2023,
doi:10.1093/nar/gkac1000), taxon 83332, CC-BY 4.0 —
7 functional partner(s); context anchor
Rv2272 - Primary literature: none located yet; annotation rests on the domain/homology sources above.
Ancestral MTBC0 protein sequence
>mtbc0_002415|Rv2273| MNRHSTAASDRGLQAERTTLAWTRTAFALLVNGVLLTLKDTQGADGPAGLIPAGLAGAAASCCYVIALQRQRALSHRPLPARITPRGQVHILATAVLVLMVVTAFAQLL