Rv1215c Family assigned · medium auto-curated
H37Rv Rv1215c · MTBC0 mtbc0_001303 ·
561 aa · 1366201–1367886 (-) ·
RefSeq NP_215731.1
Annotation: from legacy to revised
| Legacy (H37Rv / Mycobrowser) | hypothetical protein |
|---|---|
| MTBC0 PGAP re-annotation | CocE/NonD family hydrolase |
| Revised (this work) | CocE/NonD family hydrolase. Pfam: Peptidase_S15 (PF02129.25), Peptidase_S9 (PF00326.28), PepX_C (PF08530.17). |
Auto-curated: this verdict and function were generated by rules from PGAP + Pfam + Foldseek and have not been hand-reviewed.
Curated reference (UniProt)
| UniProt |
O05316
TrEMBL · unreviewed
· Evidence at protein level
|
|---|---|
| UniProt name | Conserved protein |
UniProt still lists this protein as Conserved protein; the revised annotation above is ahead of the current UniProt record.
Functional vocabulary (eggNOG-mapper, orthology transfer)
| COG category |
S Function unknown
|
|---|---|
| eggNOG description | X-Pro dipeptidyl-peptidase C-terminal non-catalytic domain |
| Orthologous group | COG2936 |
| KEGG orthology |
K06978
|
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 | 0.512 · relaxed/neutral |
|---|---|
| Polymorphic sites (≥ 0.1% of strains) | 9 synonymous, 13 missense, 0 nonsense, 1 frameshift |
| Disruption | 1 distinct premature-stop/frameshift site(s); most common in 0.31% of strains (450) · 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 |
|---|---|---|---|---|
Peptidase_S15 | PF02129.25 | 2.7e-38 | 55–294 | X-Pro dipeptidyl-peptidase (S15 family) |
Peptidase_S9 | PF00326.28 | 5.9e-05 | 122–292 | Prolyl oligopeptidase family |
PepX_C | PF08530.17 | 5.6e-23 | 339–553 | X-Pro dipeptidyl-peptidase C-terminal non-catalytic domain |
Functional interaction network (STRING v12, guilt-by-association)
Closest characterised functional partner: Rv1217c (tetronasin ABC transporter integral membrane protein), high confidence from genomic context alone (score 822 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) |
|---|---|---|---|---|
Rv1217c |
tetronasin ABC transporter integral membrane protein | 936 | 822 ctx | neighborhood:821 textmining:658 |
Rv1216c |
integral membrane protein | 927 | 746 ctx | neighborhood:744 textmining:724 |
Rv1219c raaS |
transcriptional regulator | 943 | 726 ctx | neighborhood:725 textmining:803 |
Rv1218c |
tetronasin ABC transporter ATP-binding protein | 900 | 726 ctx | neighborhood:725 textmining:650 |
Rv2800 |
hydrolase | 690 | 691 ctx | cooccurence:686 |
Rv1214c PE14 |
PE family protein PE14 | 514 | 496 ctx | neighborhood:496 |
Rv2305 hyp |
hypothetical protein | 473 | 474 ctx | cooccurence:466 |
Rv1260 |
oxidoreductase | 466 | 466 ctx | cooccurence:460 |
Rv1220c |
methyltransferase | 863 | 463 ctx | neighborhood:457 textmining:756 |
Rv1501 hyp |
hypothetical protein | 455 | 455 ctx | cooccurence:455 |
Rv0399c lpqK |
lipoprotein LpqK | 425 | 425 ctx | cooccurence:406 |
Rv3161c |
dioxygenase | 421 | 421 ctx | cooccurence:415 |
Rv3633 hyp |
hypothetical protein | 413 | 413 ctx | cooccurence:407 |
Rv3510c hyp |
hypothetical protein | 425 | 192 | |
Rv2938 drrC |
daunorubicin ABC transporter permease DrrC | 610 | 185 | textmining:542 |
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: CocE/NonD family hydrolase
- Pfam (hmmscan --cut_ga): Peptidase_S15 PF02129.25 (E=3e-38), Peptidase_S9 PF00326.28 (E=6e-05), PepX_C PF08530.17 (E=6e-23)
- (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_215731.1)
- Domains: Pfam-A via hmmscan --cut_ga — Peptidase_S15 (PF02129.25), Peptidase_S9 (PF00326.28), PepX_C (PF08530.17)
- 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
COG2936 - Curated reference: UniProt O05316 (TrEMBL, unreviewed; 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 —
18 functional partner(s); context anchor
Rv1217c - Primary literature: none located yet; annotation rests on the domain/homology sources above.
Ancestral MTBC0 protein sequence
>mtbc0_001303|Rv1215c| MARNPSPALDRPWRRPGALRYALERVRGVAKPPITVTDPPADVVIERDVEVPTRDGTLLRINVFRSAEGGARPVIASIHPYGKDALPRRRGNRWTFSPQYRMLRQPKPLTFSALTGWEAPDPAWWTAQGFVVVNADSRGCGRSDGTGDLLSHQEAEDTYDLVGWLADQSWSDGRVVMLGVSYLAISQYAVAALQPPALRAICPWEGFTDAYRDLAFPGGIRESGFTRLWSRGVRRRTRQTYDMEQMQEAHPLRDDFWRSRVPDLSAIKVPMLVCGSFSDNNLHSRGSIRAFTRSGCGHARLYTHRGGKWETFYSATALSEQLKFLRDALAGSSGSRSVRLEVREDRDTITAVREETQWPLAGTRWRPMYLAGPGLLATEPPPTAGSIRFQTRSRAAAFNWTIPEDIELTGPMAARLWVQLDGCDDANLFVGVEKWRDGQFVAFEGSYGWGRDRVTTGWQRVSLRELDPELSQPWEPVPACARPRPVTAGEVVAVDVALGPSATLFRAGEQLRLVVGGRWLSPRNPLTGQFPAAYPRPPRGRVTLHWGPRYDAHLLIPEVPG