Rv1761c Family assigned · low auto-curated

H37Rv Rv1761c · MTBC0 mtbc0_001876 · 127 aa · 2013063–2013446 (-) · RefSeq NP_216277.1

Annotation: from legacy to revised

Legacy (H37Rv / Mycobrowser)hypothetical protein
MTBC0 PGAP re-annotationDUF5073 family protein
Revised (this work)DUF5073 family protein.

Auto-curated: this verdict and function were generated by rules from PGAP + Pfam + Foldseek and have not been hand-reviewed.

Curated reference (UniProt)

UniProt O06796 TrEMBL · unreviewed · Evidence at protein level
UniProt namePossible exported protein

Functional vocabulary (eggNOG-mapper, orthology transfer)

COG category S Function unknown
eggNOG descriptionDomain of unknown function (DUF5073)
Orthologous group2B28X

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 0.72 · relaxed/neutral
Polymorphic sites (≥ 0.1% of strains) 1 synonymous, 2 missense, 0 nonsense, 0 frameshift

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)

PfamAccessioni-EvalueResiduesDescription
DUF5073PF16817.12 5.1e-641–120 Domain of unknown function (DUF5073)

Functional interaction network (STRING v12, guilt-by-association)

PartnerProductScoreNo text-miningChannels (≥400)
Rv1762c hyp hypothetical protein 887 887 ctx neighborhood:881
Rv1754c hyp hypothetical protein 555 55 textmining:549
Rv2212 adenylyl cyclase 514 47 textmining:511
Rv1585c phage protein 659 42 textmining:659
Rv1765c hyp hypothetical protein 658 41 textmining:658
Rv0071 maturase 556 41 textmining:556
Rv1647 adenylate cyclase 511 41 textmining:511
Rv1318c adenylate cyclase 439 41 textmining:439
Rv1320c adenylate cyclase 436 41 textmining:436
Rv1319c adenylate cyclase 434 41 textmining:434
Rv1264 adenylyl cyclase 433 41 textmining:433

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: DUF5073 family protein
  • Pfam (hmmscan --cut_ga): DUF5073 PF16817.12 (E=5e-64)
  • (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_216277.1)
  • Domains: Pfam-A via hmmscan --cut_ga — DUF5073 (PF16817.12)
  • 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 2B28X
  • Curated reference: UniProt O06796 (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 — 11 functional partner(s)
  • Primary literature: none located yet; annotation rests on the domain/homology sources above.

Ancestral MTBC0 protein sequence

>mtbc0_001876|Rv1761c|
MSDFDTERVSRAVAAALVGPGGVALVVKVFAGLPGVIHTPARRGFFRSNPERIQIGDWRYEVAHDGRLLAAHMVNGIVIAEDALIAEAVGPHLARALGQIVSRYGATVIPNINAAIEVLGTGTDYRF