N-Terminal Acetylation of Cellular Proteins Creates Specific Degradation Signals
Open accessAbstract
To Degrade or Not to Degrade: Regulating the turnover of proteins within the cell is of fundamental importance to almost every physiological process. Hwang et al. (p. 973 , published online 28 January; see the Perspective by Mogk and Bukau ) now find that acetylated N-terminal methionine (Met) is a degradation signal. This degron is recognized by Saccharomyces cerevisiae Doa10, a transmembrane E3 ubiquitin ligase that resides in the endoplasmic reticulum and inner nuclear membrane. The removal of N-terminal Met by Met-aminopeptidases generates N-terminal residues that are often N-terminally acetylated. Doa10 selectively binds to the resulting N-degrons, which may represent the most prevalent class of cellular protein degradation signals.
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.
Integrity signals
Registry
Cites
Statistics
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.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The N-terminal serine residue S2 is a constitutively acetylated site in eukaryotic proteins with a role in degradation signaling.
“except for the N-terminal serine residue (S2), which represents a constitutively acetylated site in eukaryotic proteins that has a role in degradation signaling (34).”
From Identification of a Key Lysine Residue in Heat Shock Protein 90 Required for Azole and Echinocandin Resistance in Aspergillus fumigatus (2014) · cites this paper as [34]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
In Vivo Half-Life of a Protein Is a Function of Its Amino-Terminal Residue
Bachmair, A., Finley, D. J., & Varshavsky, A. J. (1986) · Science · doi:10.1126/science.3018930 · Cited by 1,976 · see citing works
Self-citationThe N-end rule: functions, mysteries, uses
Varshavsky, A. (1996) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.93.22.12142 · Cited by 859 · see citing works
Self-citationArnesen, T., Damme, P. V., Polevoda, B. V., Helsens, K., Evjenth, R., Colaert, N., Varhaug, J. E., Vandekerckhove, J. S., Lillehaug, J. R., Sherman, F., et al. (2009) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0901931106 · Cited by 539 · see citing works
Swanson, R. J., Locher, M., & Hochstrasser, M. (2001) · Genes & Development · doi:10.1101/gad.933301 · Cited by 456 · see citing works
Polevoda, B. V., & Sherman, F. (2002) · Journal of Molecular Biology · doi:10.1016/s0022-2836(02)01269-x · Cited by 440 · see citing works
The degradation signal in a short-lived protein
Bachmair, A., & Varshavsky, A. J. (1989) · Cell · doi:10.1016/0092-8674(89)90635-1 · Cited by 431 · see citing works
Self-citationChen, P., Johnson, P. R., Sommer, T., Jentsch, S., & Hochstrasser, M. (1993) · Cell · doi:10.1016/0092-8674(93)90426-q · Cited by 392 · see citing works
The Proteomics of N-terminal Methionine Cleavage
Frottin, F., Martinez, A., Peynot, P., Mitra, S., Holz, R. C., Giglione, C., & Meinnel, T. (2006) · Molecular & Cellular Proteomics · doi:10.1074/mcp.m600225-mcp200 · Cited by 385 · see citing works
Mullen, J. R., Kayne, P. S., Moerschell, R. P., Tsunasawa, S., Gribskov, M., Colavito-Shepanski, M., Grunstein, M. R., Sherman, F., & Sternglanz, R. (1989) · The EMBO Journal · doi:10.1002/j.1460-2075.1989.tb03615.x · Cited by 323 · see citing works
The N-end rule pathway as a nitric oxide sensor controlling the levels of multiple regulators
Hu, R., Sheng, J., Qi, X., Xu, Z., Takahashi, T. T., & Varshavsky, A. J. (2005) · Nature · doi:10.1038/nature04027 · Cited by 316 · see citing works
Self-citationMembrane and soluble substrates of the Doa10 ubiquitin ligase are degraded by distinct pathways
Ravid, T., Kreft, S. G., & Hochstrasser, M. (2006) · The EMBO Journal · doi:10.1038/sj.emboj.7600946 · Cited by 271 · see citing works
The N-end rule pathway for regulated proteolysis: prokaryotic and eukaryotic strategies
Mogk, A., Schmidt, R., & Bukau, B. (2007) · Trends in Cell Biology · doi:10.1016/j.tcb.2007.02.001 · Cited by 261 · see citing works
In vivo degradation of a transcriptional regulator: The yeast α2 repressor
Hochstrasser, M., & Varshavsky, A. J. (1990) · Cell · doi:10.1016/0092-8674(90)90481-s · Cited by 240 · see citing works
Self-citationGautschi, M., Just, S., Mun, A., et al. (2003) · Molecular and Cellular Biology · doi:10.1128/mcb.23.20.7403-7414.2003 · Cited by 217 · see citing works
Molecular mechanisms of cell-type determination in budding yeast
Johnson, A. D. (1995) · Current Opinion in Genetics & Development · doi:10.1016/0959-437x(95)80022-0 · Cited by 189 · see citing works
Jörnvall, H. (1975) · Journal of Theoretical Biology · doi:10.1016/s0022-5193(75)80105-6 · Cited by 184 · see citing works
TEB4 is a C4HC3 RING finger-containing ubiquitin ligase of the endoplasmic reticulum
Hassink, G. C., Kikkert, M., van Voorden, S., Lee, S., Spaapen, R. M., van Laar, T., Coleman, C. S., Bartee, E., Früh, K., Chau, V., et al. (2005) · Biochemical Journal · doi:10.1042/bj20041241 · Cited by 172 · see citing works
ARD1 and NAT1 proteins form a complex that has N‐terminal acetyltransferase activity.
Park, E. C., & Szostak, J. W. (1992) · The EMBO Journal · doi:10.1002/j.1460-2075.1992.tb05267.x · Cited by 169 · see citing works
The mammalian N-end rule pathway: new insights into its components and physiological roles
Tasaki, T., & Kwon, Y. T. (2007) · Trends in Biochemical Sciences · doi:10.1016/j.tibs.2007.08.010 · Cited by 167 · see citing works
Goetze, S., Qeli, E., Mosimann, C., et al. (2009) · PLoS Biology · doi:10.1371/journal.pbio.1000236 · Cited by 167 · see citing works
Spatially regulated ubiquitin ligation by an ER/nuclear membrane ligase
Deng, M., & Hochstrasser, M. (2006) · Nature · doi:10.1038/nature05170 · Cited by 161 · see citing works
The N-end rule pathway is a sensor of heme
Hu, R., Wang, H., Xia, Z., & Varshavsky, A. J. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0710568105 · Cited by 116 · see citing works
Self-citationDegradation of Proteins with Acetylated Amino Termini by the Ubiquitin System
Mayer, A., Siegel, N. R., Schwartz, A. L., & Ciechanover, A. J. (1989) · Science · doi:10.1126/science.2544030 · Cited by 106 · see citing works
Ubiquitin Fusion Technique and Related Methods
Varshavsky, A. J. (2005) · Methods in enzymology on CD-ROM/Methods in enzymology · doi:10.1016/s0076-6879(05)99051-4 · Cited by 105 · see citing works
Self-citationDiscovery of Cellular Regulation by Protein Degradation
Varshavsky, A. J. (2008) · Journal of Biological Chemistry · doi:10.1074/jbc.x800009200 · Cited by 99 · see citing works
Self-citationGlutamine-Specific N-Terminal Amidase, a Component of the N-End Rule Pathway
Wang, H., Piatkov, K. I., Brower, C. S., & Varshavsky, A. J. (2009) · Molecular Cell · doi:10.1016/j.molcel.2009.04.032 · Cited by 81 · see citing works
Self-citationTwo proteolytic pathways regulate DNA repair by cotargeting the Mgt1 alkylguanine transferase
Hwang, C., Shemorry, A., & Varshavsky, A. J. (2009) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0812316106 · Cited by 77 · see citing works
Self-citationHwang, C., & Varshavsky, A. J. (2008) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0808891105 · Cited by 40 · see citing works
Self-citationInterspecies variation reveals a conserved repressor of α-specific genes in Saccharomyces yeastsPreprint
Zill, O. A., & Rine, J. (2008) · Genes & Development · doi:10.1101/gad.1640008 · Cited by 29 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
The proteostasis network and its decline in ageing
Hipp, M. S., Kasturi, P., & Hartl, F. U. (2019) · Nature Reviews Molecular Cell Biology · doi:10.1038/s41580-019-0101-y · Cited by 1,642 · see citing works
Protein Analysis by Shotgun/Bottom-up Proteomics
Zhang, Y., Fonslow, B. R., Shan, B., Baek, M.-C., & Yates, J. R. (2013) · Chemical Reviews · doi:10.1021/cr3003533 · Cited by 1,491 · see citing works
N-degron and C-degron pathways of protein degradation
Varshavsky, A. (2019) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1816596116 · Cited by 544 · see citing works
Self-citationProtein Quality Control in the Cytosol and the Endoplasmic Reticulum: Brothers in Arms
Buchberger, A., Bukau, B., & Sommer, T. (2010) · Molecular Cell · doi:10.1016/j.molcel.2010.10.001 · Cited by 483 · see citing works
Xia, C., Tao, Y., Li, M., Che, T., & Qu, J. (2020) · Experimental and Therapeutic Medicine · doi:10.3892/etm.2020.9073 · Cited by 136 · see citing works
Molecular basis of GID4-mediated recognition of degrons for the Pro/N-end rule pathway
Dong, C., Zhang, H., Li, L., Tempel, W., Loppnau, P., & Min, J. (2018) · Nature Chemical Biology · doi:10.1038/s41589-018-0036-1 · Cited by 111 · see citing works
Lamoth, F., Juvvadi, P. R., Soderblom, E. J., Moseley, M. A., Asfaw, Y. G., & Steinbach, W. J. (2014) · Antimicrobial Agents and Chemotherapy · doi:10.1128/aac.02286-13 · Cited by 74 · see citing works
DEGRONOPEDIA: a web server for proteome-wide inspection of degrons
Szulc, N. A., Stefaniak, F., Piechota, M., Soszyńska, A., Piórkowska, G., Cappannini, A., Bujnicki, J. M., Maniaci, C., & Pokrzywa, W. (2024) · Nucleic Acids Research · doi:10.1093/nar/gkae238 · Cited by 35 · see citing works
Dispersed Sites of HIV Vif-Dependent Polyubiquitination in the DNA Deaminase APOBEC3F
Albin, J. S., Anderson, J. S., Johnson, J. R., Harjes, E., Matsuo, H., Krogan, N. J., & Harris, R. S. (2013) · Journal of Molecular Biology · doi:10.1016/j.jmb.2013.01.010 · Cited by 25 · see citing works
Cellular maintenance of nuclear protein homeostasis.
Gallagher, P. S., Oeser, M. L., Abraham, A.-C., Kaganovich, D., & Gardner, R. G. (2014) · Cellular and Molecular Life Sciences · doi:10.1007/s00018-013-1530-y · Cited by 22 · see citing works
- Authors
- Hwang, C.-S., Shemorry, A., & Varshavsky, A.
- Affiliations
- California Institute of Technology (US)
- Corresponding author
- Varshavsky, Alexander
- Venue
- Science
- Published
- 2010-02-19
- Volume
- 327
- Issue
- 5968
- Pages
- 973-977
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- PMC
- PMC4259118
- OpenAlex
- W2008207297
- Cited by
- 650
- References
- 29
- Citations by year
- 2026: 12 · 2025: 48 · 2024: 34 · 2023: 46 · 2022: 41 · 2021: 33 · 2020: 35 · 2019: 38 · 2018: 36 · 2017: 45 · 2016: 38 · 2015: 40 · 2014: 37 · 2013: 47 · 2012: 47
- FWCI
- 21.48
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- CaltechAUTHORS (California Institute of Technology) (submittedVersion)
- Open Access System for Information Sharing (Pohang University of Science and Technology) (submittedVersion)
- Funders
- National Institute of General Medical Sciences (T32GM007616)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
- Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
- Keywords
- N-terminal acetylation, protein degradation signals, Saccharomyces cerevisiae, ubiquitination, protein turnover
- MeSH terms
- Acetylation, Alanine, Amino Acid Sequence, Cysteine, Half-Life, Methionine, Saccharomyces cerevisiae, Serine, Substrate Specificity, Valine, Saccharomyces cerevisiae Proteins, Ubiquitin-Protein Ligases, Ubiquitination, Protein Stability
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