Evidence map›Paper›PMID 16567620›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2006

A protein interaction surface in nonribosomal peptide synthesis mapped by combinatorial mutagenesis and selection.

Jonathan R Lai, Michael A Fischbach, David R Liu, Christopher T Walsh

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

32 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
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  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Structural Biology of Nonribosomal Peptide Synthetases.Methods in molecular biology (Clifton, N.J.) · 2016
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Genetic and biochemical analyses of chromosome and plasmid gene homologues encoding ICL and ArCP domains in Vibrio anguillarum strain 775.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2011
    Article
  20. Article
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

4 authors at 2 institutions in 1 country.

Jonathan R LaiDepartment of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA.
Michael A Fischbach
David R Liu
Christopher T Walsh
Harvard University · USHoward Hughes Medical Institute · US

Funding

T CELL SPECIFIC TRANSCRIPTION COMPLEXESP01GM047467 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI WAGNER, GERHARD · 1992 to 2017
$28.6M
Modular Enzymatic Assembly Lines for AntibioticsR01GM020011 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI WALSH, CHRISTOPHER T · 1985 to 2013
$8.2M
Siderophore Synthetases in Three Bacterial PathogensR01AI042738 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI WALSH, CHRISTOPHER T · 1998 to 2011
$5.0M
Expanding the Scope of Protein EvolutionR01GM065400 · NIGMS · HARVARD UNIVERSITY · PI LIU, DAVID R · 2002 to 2010
$2.5M
5S RRNA RECOGNITION BY TRANSCRIPTION FACTOR IIIAF32GM020011 · NIGMS · SCRIPPS RESEARCH INSTITUTE · PI LEE, BRIAN M · 1999 to 2000
$39k
ENZYMATIC REACTION MECHANISMSR37GM020011 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI WALSH, CHRISTOPHER A · 1986 to 1995
–
NIAID NIH HHS AI 042738NIAID NIH HHS R01 AI042738NIGMS NIH HHS F32 GM020011NIGMS NIH HHS GM 020011NIGMS NIH HHS GM 047467NIGMS NIH HHS GM 065400NIGMS NIH HHS P01 GM047467NIGMS NIH HHS R01 GM020011NIGMS NIH HHS R01 GM065400
6 · The paper itself

Abstract

Nonribosomal peptide synthetases (NRPSs) and polyketide synthases are large, multidomain enzymes that biosynthesize a number of pharmaceutically important natural products. The recognition of biosynthetic intermediates, displayed via covalent attachment to carrier proteins, by catalytic domains is critical for NRPS and polyketide synthase function. We report the use of combinatorial mutagenesis coupled with in vivo selection for the production of the Escherichia coli NRPS product enterobactin to map the surface of the aryl carrier protein (ArCP) domain of EntB that interacts with the downstream elongation module EntF. Two libraries spanning the predicted helix 2 and loop 2/helix 3 of EntB-ArCP were generated by shotgun alanine scanning and selected for their ability to support enterobactin production. From the surviving pools, we identified several hydrophobic residues (M249, F264, and A268) that were highly conserved. These residues cluster near the phosphopantetheinylated serine in a structural model, and two of these positions are in the predicted helix 3 region. Subsequent in vitro studies are consistent with the hypothesis that these residues form a surface on EntB required for interaction with EntF. These results suggest that helix 3 is a major recognition element in EntB-ArCP and demonstrate the utility of selection-based approaches for studying NRPS biosynthesis.

Indexed as

Selection, GeneticAmino Acid SequenceBase SequenceDNA PrimersModels, MolecularMolecular Sequence DataMutagenesisPeptidesPoint MutationRibosomal ProteinsSequence Homology, Amino AcidDNA PrimersPeptidesRibosomal Proteins

Identifiers

PMID16567620
PMCPMC1459352
OpenAlexW2147443793

What OpenQuestion holds

Textmetadata
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.