Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 191

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

DEN1 Is a Dual Function Protease Capable of Processing the C Terminus of Nedd8 and Deconjugating Hyper-neddylated CUL1

Open access
Wu, Kenneth, Yamoah, Kosj, Dolios, Georgia, Gan-Erdene, Tudeviin, Tan, Peilin, Chen, Angus, Lee, Chee-gun, Wei, Ning, Wilkinson, Keith D., Wang, Rong, Pan, Zhen-Qiang·2003·Journal of Biological Chemistry

Abstract

Nedd8 activates ubiquitination by increasing the efficiency of polyubiquitin chain assembly through its covalent conjugation to cullin molecules. Here we report the isolation, cloning, and characterization of a novel human Nedd8-specific protease called DEN1. Human DEN1 is encoded by AAH31411.1, a previously uncharacterized protein of 212 amino acids that shares homology with the Ulp1 cysteinyl SUMO deconjugating enzyme family. Recombinant human DEN1, purified from bacteria, selectively binds to Nedd8 and hydrolyzes C-terminal derivatives of Nedd8. Interestingly, DEN1 deconjugates cullin 1 (CUL1)-Nedd8 in a concentration-dependent manner. At a low concentration, DEN1 processes hyper-neddylated CUL1 to yield a mononeddylated form, which presumably contains the Lys-720CUL1-Nedd8 linkage. At elevated concentrations, DEN1 is able to complete the removal of Nedd8 from CUL1. These activities distinguish DEN1 from the COP9 signalosome, which is capable of efficiently cleaving the Lys-720CUL1-Nedd8 conjugate, but lacks Nedd8 C-terminal hydrolytic activity and poorly processes hyperneddylated CUL1. These results suggest a unique role for DEN1 in regulating the modification of cullins by Nedd8.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1074/jbc.m302888200

Cites

2 of 2 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 2 references

Cited by

See all 191

Metadata

Authors
Wu, K., Yamoah, K., Dolios, G., Gan-Erdene, T., Tan, P., Chen, A., Lee, C.-G., Wei, N., Wilkinson, K. D., Wang, R., & Pan, Z.-Q.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2003-08
Volume
278
Issue
31
Pages
28882-28891
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2099443464
Cited by
191
References
2
FWCI
3.75
Type
journal article
Language
en
Open access
hybrid

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: DEN1 Is a Dual Function Protease Capable of Processing the C Terminus of Nedd8 and Deconjugating Hyper-neddylated CUL1. https://app.cochat.ai/papers/10.1074/jbc.m302888200
The paper
Wu, K., Yamoah, K., Dolios, G., Gan-Erdene, T., Tan, P., Chen, A., Lee, C.-G., Wei, N., Wilkinson, K. D., Wang, R., & Pan, Z.-Q. (2003). DEN1 Is a Dual Function Protease Capable of Processing the C Terminus of Nedd8 and Deconjugating Hyper-neddylated CUL1. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m302888200

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.