rplW Resolved · high auto-curated

H37Rv Rv0703 · MTBC0 mtbc0_000745 · 100 aa · 806218–806520 (+) · RefSeq NP_215217.1

Annotation: from legacy to revised

Legacy (H37Rv / Mycobrowser)50S ribosomal protein L23
MTBC0 PGAP re-annotation50S ribosomal protein L23
Revised (this work)50S ribosomal protein L23. Pfam: Ribosomal_L23 (PF00276.26).

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

Curated reference (UniProt)

UniProt P9WHB9 SwissProt · reviewed · Evidence at protein level
UniProt nameLarge ribosomal subunit protein uL23
Curated functionOne of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome.

Functional vocabulary (eggNOG-mapper, orthology transfer)

COG category J Translation, ribosomal structure and biogenesis
Preferred namerplW
eggNOG descriptionOne of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome
Orthologous groupCOG0089
KEGG orthology K02892
KEGG pathways map03010
KEGG modules M00178, M00179
Gene Ontology (76) GO:0000027, GO:0003674, GO:0003676, GO:0003723, GO:0003735, GO:0005198, GO:0005488, GO:0005575, GO:0005622, GO:0005623, GO:0005737, GO:0005829 +64 more

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 n/a
Polymorphic sites (≥ 0.1% of strains) 0 synonymous, 3 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
Ribosomal_L23PF00276.26 5.1e-319–91 Ribosomal protein L23

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

Closest characterised functional partner: rplB (50S ribosomal protein L2), high confidence from genomic context alone (score 1000 excluding text-mining).

PartnerProductScoreNo text-miningChannels (≥400)
Rv3458c rpsD 30S ribosomal protein S4 999 1000 coexpression:904 experimental:999
Rv0683 rpsG 30S ribosomal protein S7 999 1000 coexpression:875 experimental:999
Rv2904c rplS 50S ribosomal protein L19 999 1000 coexpression:871 experimental:999
Rv0704 rplB 50S ribosomal protein L2 999 1000 ctx neighborhood:776 coexpression:995 experimental:999 database:571 textmining:845
Rv0055 rpsR1 30S ribosomal protein S18 999 1000 coexpression:734 experimental:999
Rv0718 rpsH 30S ribosomal protein S8 999 1000 ctx cooccurence:445 coexpression:963 experimental:999 database:404
Rv0053 rpsF 30S ribosomal protein S6 999 1000 coexpression:861 experimental:999
Rv0705 rpsS 30S ribosomal protein S19 999 1000 ctx neighborhood:739 coexpression:995 experimental:999 textmining:823
Rv0708 rplP 50S ribosomal protein L16 999 1000 ctx neighborhood:739 coexpression:968 experimental:999 database:652 textmining:528
Rv0716 rplE 50S ribosomal protein L5 999 1000 coexpression:967 experimental:999 database:597 textmining:858
Rv2785c rpsO 30S ribosomal protein S15 999 1000 coexpression:863 experimental:999
Rv3461c rpmJ 50S ribosomal protein L36 999 1000 coexpression:920 experimental:999
Rv0710 rpsQ 30S ribosomal protein S17 999 1000 ctx neighborhood:739 cooccurence:406 coexpression:894 experimental:999 textmining:429
Rv0715 rplX 50S ribosomal protein L24 999 1000 coexpression:971 experimental:999 database:818 textmining:594
Rv0721 rpsE 30S ribosomal protein S5 999 1000 coexpression:957 experimental:999

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: 50S ribosomal protein L23
  • MTBC0 PGAP product: 50S ribosomal protein L23
  • Pfam (hmmscan --cut_ga): Ribosomal_L23 PF00276.26 (E=5e-31)
  • (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_215217.1)
  • Domains: Pfam-A via hmmscan --cut_ga — Ribosomal_L23 (PF00276.26)
  • 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 COG0089
  • Curated reference: UniProt P9WHB9 (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 — 209 functional partner(s); context anchor rplB
  • Primary literature: none located yet; annotation rests on the domain/homology sources above.

Ancestral MTBC0 protein sequence

>mtbc0_000745|Rv0703|rplW
MATLADPRDIILAPVISEKSYGLLDDNVYTFLVRPDSNKTQIKIAVEKIFAVKVASVNTANRQGKRKRTRTGYGKRKSTKRAIVTLAPGSRPIDLFGAPA