Evidence map›Paper›PMID 22455498›Full record

ArticleBiochemistry2012

Structure of geranyl diphosphate C-methyltransferase from Streptomyces coelicolor and implications for the mechanism of isoprenoid modification.

Mustafa Köksal, Wayne K W Chou, David E Cane, David W Christianson

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

21 citing papers in PubMed, 57 citations in OpenAlex.

  1. Structural Revision of the CAngewandte Chemie (International ed. in English) · 2026
    Article
  2. Review
  3. Homoterpene Biosynthesis in Fungi.Angewandte Chemie (International ed. in English) · 2025
    Article
  4. Article
  5. Article
  6. The microbial biosynthesis of noncanonical terpenoids.Applied microbiology and biotechnology · 2024
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. The stereochemical course of 2-methylisoborneol biosynthesis.Beilstein journal of organic chemistry · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Microbial Platform for Terpenoid Production:Frontiers in microbiology · 2018
    Article
  18. Review
  19. 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.

Mustafa KöksalRoy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA.
Wayne K W Chou
David E Cane
David W Christianson
Brown University · USUniversity of Pennsylvania · US

Funding

STRUCTURE/FUNCTION OF BIOSYNTHETIC ENZYMESR01GM056838 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI CHRISTIANSON, DAVID W · 1998 to 2025
$8.0M
STEREOCHEMICAL STUDIES OF ISOPRENOID BIOSYNTHESISR01GM030301 · NIGMS · BROWN UNIVERSITY · PI CANE, DAVID E · 1985 to 2015
$5.4M
STEROCHEMICAL STUDIES 0F ISOPRENOID BIOSYNTHESISR37GM030301 · NIGMS · BROWN UNIVERSITY · PI CANE, DAVID E · 1994 to 2003
$1.8M
NIGMS NIH HHS GM30301NIGMS NIH HHS GM56838NIGMS NIH HHS R01 GM030301NIGMS NIH HHS R01 GM056838NIGMS NIH HHS R37 GM030301
6 · The paper itself

Abstract

Geranyl diphosphate C-methyltransferase (GPPMT) from Streptomyces coelicolor A3(2) is the first methyltransferase discovered that modifies an acyclic isoprenoid diphosphate, geranyl diphosphate (GPP), to yield a noncanonical acyclic allylic diphosphate product, 2-methylgeranyl diphosphate, which serves as the substrate for a subsequent cyclization reaction catalyzed by a terpenoid cyclase, methylisoborneol synthase. Here, we report the crystal structures of GPPMT in complex with GPP or the substrate analogue geranyl S-thiolodiphosphate (GSPP) along with S-adenosyl-L-homocysteine in the cofactor binding site, resulting from in situ demethylation of S-adenosyl-L-methionine, at 2.05 or 1.82 Å resolution, respectively. These structures suggest that both GPP and GSPP can undergo catalytic methylation in crystalline GPPMT, followed by dissociation of the isoprenoid product. S-Adenosyl-L-homocysteine remains bound in the active site, however, and does not exchange with a fresh molecule of cofactor S-adenosyl-L-methionine. These structures provide important clues about the molecular mechanism of the reaction, especially with regard to the face of the 2,3 double bond of GPP that is methylated as well as the stabilization of the resulting carbocation intermediate through cation-π interactions.

Indexed as

Bacterial ProteinsBinding SitesCrystallography, X-RayDiphosphatesDiterpenesMethylationMethyltransferasesProtein ConformationS-AdenosylmethionineStreptomyces coelicolorBacterial ProteinsDiphosphatesDiterpenesgeranyl diphosphateMethyltransferasesS-Adenosylmethionine

Identifiers

PMID22455498
PMCPMC3323675
OpenAlexW2012743652

What OpenQuestion holds

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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.