wdr-23

UniProt ID: S6FN32
Organism: Caenorhabditis elegans
Review Status: COMPLETE
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Gene Description

Caenorhabditis elegans WDR-23 is a WD-repeat substrate receptor associated with the CUL-4/DDB-1 ubiquitin ligase system. Characterized isoforms regulate SKN-1 stress-response activity and the GEN-1 DNA-repair protein, with different outcomes in nuclear and cytoplasmic compartments. The selected 498-residue product retains the shared WD-repeat region but lacks the distinct N termini of the experimentally characterized isoforms; its substrate-receptor role is plausible, while its localization and regulatory effects remain unresolved.

Core Functions

Likely recruits substrates to the CUL-4/DDB-1 system through the conserved WDR-23 WD-repeat region; exact localization and substrate outcome depend on the untested N-terminally shortened product.

Molecular Function:
molecular adaptor activity
Supporting Evidence:
  • PMID:19273594
    WDR-23, which interacts with the CUL-4/DDB-1 ubiquitin ligase
  • PMID:31409866
    the N-terminal domain of WDR-23B that mediates nuclear localization does not interfere with binding of GEN-1 in vitro.
  • file:worm/wdr-23/wdr-23-bioinformatics/RESULTS.md
    | 74–571 | 1–498 | 498 |

References

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Suggested Questions for Experts

Q: Where does the D2030.9d product localize, and does it recruit SKN-1 or GEN-1 with the same consequences as WDR-23A or WDR-23B?

External Prediction Reviews

These computational predictions are reviewed separately from the GOA annotation set used for this review. The assessments below are from this project and do not constitute official GO annotations or endorsement by GO/UniProt. They are not included in the existing annotation review above.

ProtNLM2 External predictions

View prediction review YAML · wdr-23-protnlm-predictions-review.yaml · Review status: COMPLETE

The emitted ribosome-binding and translation-regulator terms are not validated by the direct WDR-23 substrate-receptor experiments. The exact product retains its WD-repeat core but has a distinct N-terminal boundary.

Source documents: genes/worm/wdr-23/wdr-23-protnlm-source.json · genes/worm/wdr-23/wdr-23-notes.md

Review score: 2 = concordant with evidence; 1 = uncertain; 0 = discordant with evidence. This is an assessment score, not a model probability.

GO:0045182 translation regulator activity GO_MF
UNC — Uncertain Review score: 1/2
Prediction method: ProtNLM2 · Version: UniProt API snapshot 2026-09-10 · file:worm/wdr-23/wdr-23-protnlm-source.json
Review rationale: The donor is RACK1, whereas direct worm studies establish WDR-23 substrate recruitment and SKN-1/GEN-1 regulation. WD-repeat architecture alone cannot transfer direct translational regulation. Effects of related WDR23 proteins on other regulatory substrates do not demonstrate this GO activity in S6FN32; an additional role is not experimentally excluded.
Supporting Evidence:
GO:0043022 ribosome binding GO_MF
UNC — Uncertain Review score: 1/2
Prediction method: ProtNLM2 · Version: UniProt API snapshot 2026-09-10 · file:worm/wdr-23/wdr-23-protnlm-source.json
Review rationale: The weak sequence match to ribosomal RACK1 does not establish a ribosome-binding interface or ribosome association in this DCAF11/WDR-23 product. Direct WDR-23 studies support a different molecular system, but do not provide a negative ribosome-binding assay.
Supporting Evidence:

Deep Research

Falcon

(wdr-23-deep-research-falcon.md)

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📚 Additional Documentation

Notes

(wdr-23-notes.md)

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Bioinformatics Results

(RESULTS.md)

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Protnlm Function Review

(wdr-23-protnlm-function-review.md)

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đź“„ View Raw YAML

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