Rv2627c Family assigned · low auto-curated
H37Rv Rv2627c · MTBC0 mtbc0_002796 ·
413 aa · 2977069–2978310 (-) ·
RefSeq NP_217143.1
Annotation: from legacy to revised
| Legacy (H37Rv / Mycobrowser) | hypothetical protein |
|---|---|
| MTBC0 PGAP re-annotation | alpha/beta hydrolase |
| Revised (this work) | Alpha/beta hydrolase. |
Auto-curated: this verdict and function were generated by rules from PGAP + Pfam + Foldseek and have not been hand-reviewed.
Curated reference (UniProt)
| UniProt |
P9WL67
SwissProt · reviewed
· Evidence at protein level
|
|---|---|
| UniProt name | Uncharacterized protein Rv2627c |
UniProt still lists this protein as Uncharacterized protein Rv2627c; the revised annotation above is ahead of the current UniProt record.
Functional vocabulary (eggNOG-mapper, orthology transfer)
| COG category |
S Function unknown
|
|---|---|
| eggNOG description | alpha beta |
| Orthologous group | COG1073 |
| Gene Ontology (6) |
GO:0005575, GO:0005623, GO:0005886, GO:0016020, GO:0044464, GO:0071944
|
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 | 2.362 · diversifying/relaxed |
|---|---|
| Polymorphic sites (≥ 0.1% of strains) | 1 synonymous, 7 missense, 0 nonsense, 1 frameshift |
| Disruption | 1 distinct premature-stop/frameshift site(s); most common in 0.21% of strains (302) · 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)
No Pfam-A domain above the gathering threshold (or not yet scanned).
Functional interaction network (STRING v12, guilt-by-association)
Closest characterised functional partner: tgs1 (diacyglycerol O-acyltransferase), high confidence from genomic context alone (score 919 excluding text-mining). This association is the citable seed of a function hypothesis for this hypothetical protein.
| Partner | Product | Score | No text-mining | Channels (≥400) |
|---|---|---|---|---|
Rv3130c tgs1 |
diacyglycerol O-acyltransferase | 922 | 919 ctx | cooccurence:432 coexpression:804 |
Rv1733c |
transmembrane protein | 876 | 877 | coexpression:860 |
Rv2623 TB31.7 |
universal stress protein | 873 | 874 | coexpression:853 |
Rv2032 acg |
NAD(P)H nitroreductase | 862 | 862 | coexpression:861 |
Rv1737c narK2 |
nitrate/nitrite transporter | 860 | 861 | coexpression:860 |
Rv2626c hrp1 |
hypoxic response protein | 860 | 861 | coexpression:860 |
Rv2030c hyp |
hypothetical protein | 860 | 860 | coexpression:860 |
Rv3134c |
universal stress protein | 847 | 848 | coexpression:827 |
Rv1996 |
universal stress protein | 846 | 846 | coexpression:824 |
Rv2625c rip3 |
zinc metalloprotease Rip3 | 830 | 831 | coexpression:806 |
Rv2628 hyp |
hypothetical protein | 829 | 830 | coexpression:731 |
Rv3127 hyp |
hypothetical protein | 829 | 829 | coexpression:828 |
Rv1813c hyp |
hypothetical protein | 828 | 828 | coexpression:827 |
Rv1736c narX |
nitrate reductase-like protein NarX | 820 | 820 | coexpression:820 |
Rv2029c pfkB |
6-phosphofructokinase PfkB | 819 | 819 | coexpression:819 |
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: hypothetical protein
- MTBC0 PGAP product: alpha/beta hydrolase
- (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_217143.1)
- Domains: Pfam-A via hmmscan --cut_ga — none above threshold
- 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
COG1073 - Curated reference: UniProt P9WL67 (SwissProt, reviewed; Evidence at protein level)
- 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 —
102 functional partner(s); context anchor
tgs1 - Primary literature: none located yet; annotation rests on the domain/homology sources above.
Ancestral MTBC0 protein sequence
>mtbc0_002796|Rv2627c| MASSASDGTHERSAFRLSPPVLSGAMGPFMHTGLYVAQSWRDYLGQQPDKLPIARPTIALAAQAFRDEIVLLGLKARRPVSNHRVFERISQEVAAGLEFYGNRGWLEKPSGFFAQPPPLTEVAVRKVKDRRRSFYRIFFDSGFTPHPGEPGSQRWLSYTANNREYALLLRHPEPRPWLVCVHGTEMGRAPLDLAVFRAWKLHDELGLNIVMPVLPMHGPRGQGLPKGAVFPGEDVLDDVHGTAQAVWDIRRLLSWIRSQEEESLIGLNGLSLGGYIASLVASLEEGLACAILGVPVADLIELLGRHCGLRHKDPRRHTVKMAEPIGRMISPLSLTPLVPMPGRFIYAGIADRLVHPREQVTRLWEHWGKPEIVWYPGGHTGFFQSRPVRRFVQAALEQSGLLDAPRTQRDRSA