Evidence map›Paper›PMID 23989673›Full record

ArticleNature protocols2013

Site-specific C-terminal and internal loop labeling of proteins using sortase-mediated reactions.

Carla P Guimaraes, Martin D Witte, Christopher S Theile, Gunes Bozkurt, Lenka Kundrat, Annet E M Blom, Hidde L Ploegh

Open access · bronzeAbstract read
In one paragraph

Article in Nature protocols, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 186 papers.

0numbers the graph read from it
0cells of the map it votes in
186citing papers in PubMed
9.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

186 citing papers in PubMed, 350 citations in OpenAlex.

  1. Review
  2. Methyltransferase RsmB chaperonesScience advances · 2026
    Article
  3. Article
  4. Review
  5. Programmable genetic control of tumor-colonizingbioRxiv : the preprint server for biology · 2026
    Article
  6. Article
  7. CRISPR Gene Tagging for Illuminating Endogenous Protein Dynamics.International journal of molecular sciences · 2026
    Review
  8. Sortase A-Mediated Farnesylation of Cdc42ACS synthetic biology · 2026
    Article
  9. Article
  10. Sortase A Catalyzed Transpeptidation for Protein Bioengineering.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

126 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Carla P GuimaraesWhitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA.
Martin D Witte
Christopher S Theile
Gunes Bozkurt
Lenka Kundrat
Annet E M Blom
Hidde L Ploegh
Whitehead Institute for Biomedical Research · US

Funding

Sortase-mediated protein engineering for the study of host-pathogen interactionsR01AI087879 · NIAID · WHITEHEAD INSTITUTE FOR BIOMEDICAL RES · PI PLOEGH, HIDDE L. · 2010 to 2019
$4.5M
NIAID NIH HHS R01 AI087879
6 · The paper itself

Abstract

Methods for site-specific modification of proteins should be quantitative and versatile with respect to the nature and size of the biological or chemical targets involved. They should require minimal modification of the target, and the underlying reactions should be completed in a reasonable amount of time under physiological conditions. Sortase-mediated transpeptidation reactions meet these criteria and are compatible with other labeling methods. Here we describe the expression and purification conditions for two sortase A enzymes that have different recognition sequences. We also provide a protocol that allows the functionalization of any given protein at its C terminus, or, for select proteins, at an internal site. The target protein is engineered with a sortase-recognition motif (LPXTG) at the place where modification is desired. Upon recognition, sortase cleaves the protein between the threonine and glycine residues, facilitating the attachment of an exogenously added oligoglycine peptide modified with the functional group of choice (e.g., fluorophore, biotin, protein or lipid). Expression and purification of sortase takes ∼3 d, and sortase-mediated reactions take only a few minutes, but reaction times can be extended to increase yields.

Indexed as

Amino Acid SequenceAminoacyltransferasesBacterial ProteinsCell WallChromatography, High Pressure LiquidChromatography, LiquidCysteine EndopeptidasesMass SpectrometryProtein EngineeringAminoacyltransferasesBacterial ProteinsCysteine Endopeptidasessortase A

Identifiers

PMID23989673
PMCPMC3943461
OpenAlexW2034663072

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.