Evidence map›Paper›PMID 18391214›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Structure of human monoamine oxidase A at 2.2-A resolution: the control of opening the entry for substrates/inhibitors.

Se-Young Son, Jichun Ma, Youhei Kondou, Masato Yoshimura, Eiki Yamashita, Tomitake Tsukihara

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 218 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
218citing papers in PubMed, 2 pooled it
15.3field-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

218 citing papers in PubMed, 2 syntheses or guidelines pooled it, 599 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Phytochemical Characterization ofMolecules (Basel, Switzerland) · 2026
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  8. In-depth multimodal validation ofExperimental & molecular medicine · 2026
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  9. Review
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  11. Article
  12. Biochemistry and biophysics reports · 2026
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  14. Article
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  16. Behavioral, Biochemical, andPharmaceuticals (Basel, Switzerland) · 2026
    Article
  17. Novel Insights on Benzo[Antioxidants (Basel, Switzerland) · 2026
    Article
  18. Article
  19. Review
  20. Review

158 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

6 authors at 4 institutions in 2 countries.

Se-Young SonLaboratory of Protein Crystallography, Institute for Protein Research, Osaka University, Yamadaoka 3-2, Suita, Osaka 565-0871, Japan.
Jichun Ma
Youhei Kondou
Masato Yoshimura
Eiki Yamashita
Tomitake Tsukihara
Osaka University · JPProtein Research Foundation · JPKobe University · JPNational Cancer Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mitochondrial outer membrane-anchored monoamine oxidase (MAO) is a biochemically important flavoenzyme that catalyzes the deamination of biogenic and xenobiotic amines. Its two subtypes, MAOA and MAOB, are linked to several psychiatric disorders and therefore are interesting targets for drug design. To understand the relationship between structure and function of this enzyme, we extended our previous low-resolution rat MAOA structure to the high-resolution wild-type and G110A mutant human MAOA structures at 2.2 and 2.17 A, respectively. The high-resolution MAOA structures are similar to those of rat MAOA and human MAOB, but different from the known structure of human MAOA [De Colibus L, et al. (2005) Proc Natl Acad Sci USA 102:12684-12689], specifically regarding residues 108-118 and 210-216, which surround the substrate/inhibitor cavity. The results confirm that the inhibitor selectivity of MAOA and MAOB is caused by the structural differences arising from Ile-335 in MAOA vs. Tyr-326 in MAOB. The structures exhibit a C-terminal transmembrane helix with clear electron density, as is also seen in rat MAOA. Mutations on one residue of loop 108-118, G110, which is far from the active center but close to the membrane surface, cause the solubilized enzyme to undergo a dramatic drop in activity, but have less effect when the enzyme is anchored in the membrane. These results suggest that the flexibility of loop 108-118, facilitated by anchoring the enzyme into the membrane, is essential for controlling substrate access to the active site. We report on the observation of the structure-function relationship between a transmembrane helical anchor and an extra-membrane domain.

Indexed as

Binding SitesCrystallography, X-RayHumansMonoamine OxidaseMonoamine Oxidase InhibitorsPoint MutationProtein BindingProtein ConformationSubstrate SpecificityMonoamine OxidaseMonoamine Oxidase Inhibitors

Identifiers

PMID18391214
PMCPMC2311356
OpenAlexW2054253103

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.