Evidence map›Paper›PMID 18391040›Full record

ArticleAntimicrobial agents and chemotherapy2008

Crystal structures of biapenem and tebipenem complexed with penicillin-binding proteins 2X and 1A from Streptococcus pneumoniae.

Mototsugu Yamada, Takashi Watanabe, Nobuyoshi Baba, Yasuo Takeuchi, Fukuichi Ohsawa, Shuichi Gomi

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.5field-weighted citation impact, top 20% 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

18 citing papers in PubMed, 45 citations in OpenAlex.

  1. Review
  2. A Review ofInternational journal of microbiology · 2026
    Review
  3. Article
  4. Identification of β-Lactams Active againstACS infectious diseases · 2022
    Article
  5. Article
  6. Article
  7. Antimicrobial agents and chemotherapy · 2019
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. The future of the β-lactams.Current opinion in microbiology · 2010
    Review
  17. Article
  18. 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

6 authors.

Mototsugu YamadaPharmaceutical Research Center, Meiji Seika Kaisha, Ltd., 760 Morooka-cho, Kohoku-ku, Yokohama 222-8567, Japan. mototsugu_yamada@meiji.co.jp
Takashi Watanabe
Nobuyoshi Baba
Yasuo Takeuchi
Fukuichi Ohsawa
Shuichi Gomi

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biapenem is a parenteral carbapenem antibiotic that exhibits wide-ranging antibacterial activity, remarkable chemical stability, and extensive stability against human renal dehydropeptidase-I. Tebipenem is the active form of tebipenem pivoxil, a novel oral carbapenem antibiotic that has a high level of bioavailability in humans, in addition to the above-mentioned features. beta-lactam antibiotics, including carbapenems, target penicillin-binding proteins (PBPs), which are membrane-associated enzymes that play essential roles in peptidoglycan biosynthesis. To envisage the binding of carbapenems to PBPs, we determined the crystal structures of the trypsin-digested forms of both PBP 2X and PBP 1A from Streptococcus pneumoniae strain R6, each complexed with biapenem or tebipenem. The structures of the complexes revealed that the carbapenem C-2 side chains form hydrophobic interactions with Trp374 and Thr526 of PBP 2X and with Trp411 and Thr543 of PBP 1A. The Trp and Thr residues are conserved in PBP 2B. These results suggest that interactions between the C-2 side chains of carbapenems and the conserved Trp and Thr residues in PBPs play important roles in the binding of carbapenems to PBPs.

Indexed as

Anti-Bacterial AgentsBacterial Proteinsbeta-LactamsBinding SitesCarbapenemsCrystallizationCrystallography, X-RayModels, MolecularMolecular StructurePenicillin-Binding ProteinsPeptidyl TransferasesProtein BindingStreptococcus pneumoniaeThienamycinsAnti-Bacterial AgentsBacterial Proteinsbeta-LactamsbiapenemCarbapenemsPBP1a protein, Streptococcus pneumoniaePBP 2x protein, StreptococcusPenicillin-Binding ProteinsPeptidyl TransferasestebipenemThienamycins

Identifiers

PMID18391040
PMCPMC2415762
OpenAlexW2131002332

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.