Evidence map›Paper›PMID 15601691›Full record

ArticleJournal of bacteriology2005

Identification of an amino acid position that determines the substrate range of integral membrane alkane hydroxylases.

Jan B van Beilen, Theo H M Smits, Franz F Roos, Tobias Brunner, Stefanie B Balada, Martina Röthlisberger, Bernard Witholt

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

42 citing papers in PubMed, 135 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Journal of the American Chemical Society · 2025
    Article
  5. Generalization of Classification of AlkB Family Alkane Monooxygenases fromInternational journal of molecular sciences · 2025
    Article
  6. Article
  7. Structure and Function of Alkane Monooxygenase (AlkB).Accounts of chemical research · 2023
    Review
  8. Article
  9. Article
  10. Article
  11. Rational design of enzyme activity and enantioselectivity.Frontiers in bioengineering and biotechnology · 2023
    Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Directed evolution methods for overcoming trade-offs between protein activity and stability.AIChE journal. American Institute of Chemical Engineers · 2020
    Article
  18. Article
  19. Biosynthesis of Medium-Chain ω-Hydroxy Fatty Acids by AlkBGT ofFrontiers in bioengineering and biotechnology · 2019
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Jan B van BeilenETH Zürich, Institute of Biotechnology, ETH-Hönggerberg HPT, Zürich, Switzerland. vanbeilen@biotech.biol.ethz.ch
Theo H M Smits
Franz F Roos
Tobias Brunner
Stefanie B Balada
Martina Röthlisberger
Bernard Witholt
ETH Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Selection experiments and protein engineering were used to identify an amino acid position in integral membrane alkane hydroxylases (AHs) that determines whether long-chain-length alkanes can be hydroxylated by these enzymes. First, substrate range mutants of the Pseudomonas putida GPo1 and Alcanivorax borkumensis AP1 medium-chain-length AHs were obtained by selection experiments with a specially constructed host. In all mutants able to oxidize alkanes longer than C13, W55 (in the case of P. putida AlkB) or W58 (in the case of A. borkumensis AlkB1) had changed to a much less bulky amino acid, usually serine or cysteine. The corresponding position in AHs from other bacteria that oxidize alkanes longer than C13 is occupied by a less bulky hydrophobic residue (A, V, L, or I). Site-directed mutagenesis of this position in the Mycobacterium tuberculosis H37Rv AH, which oxidizes C10 to C16 alkanes, to introduce more bulky amino acids changed the substrate range in the opposite direction; L69F and L69W mutants oxidized only C10 and C11 alkanes. Subsequent selection for growth on longer alkanes restored the leucine codon. A structure model of AHs based on these results is discussed.

Indexed as

AlkanesAmino Acid SequenceCytochrome P-450 CYP4AHalomonadaceaeHydroxylationModels, MolecularMolecular Sequence DataPseudomonas putidaStructure-Activity RelationshipSubstrate SpecificityAlkanesCytochrome P-450 CYP4A

Identifiers

PMID15601691
PMCPMC538836
OpenAlexW2150471285

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.