Evidence map›Paper›PMID 26776105›Full record

ArticleScientific reports2016

Comprehensive Structural Characterization of the Bacterial Homospermidine Synthase-an Essential Enzyme of the Polyamine Metabolism.

Sebastian Krossa, Annette Faust, Dietrich Ober, Axel J Scheidig

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

9 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Functional polyamine metabolic enzymes and pathways encoded by the virosphere.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Antibacterial Diamines Targeting Bacterial Membranes.Journal of medicinal chemistry · 2016
    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 1 institution in 1 country.

Sebastian KrossaStructural Biology-Zoological Institute, Kiel University, Am Botanischen Garten 11, 24118 Kiel, Germany.
Annette FaustStructural Biology-Zoological Institute, Kiel University, Am Botanischen Garten 11, 24118 Kiel, Germany.
Dietrich OberBotanical Institute - Biochemical Ecology and Molecular Evolution, Kiel University, Am Botanischen Garten 1-9, 24118 Kiel, Germany.
Axel J ScheidigStructural Biology-Zoological Institute, Kiel University, Am Botanischen Garten 11, 24118 Kiel, Germany.
Kiel University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The highly conserved bacterial homospermidine synthase (HSS) is a key enzyme of the polyamine metabolism of many proteobacteria including pathogenic strains such as Legionella pneumophila and Pseudomonas aeruginosa; The unique usage of NAD(H) as a prosthetic group is a common feature of bacterial HSS, eukaryotic HSS and deoxyhypusine synthase (DHS). The structure of the bacterial enzyme does not possess a lysine residue in the active center and thus does not form an enzyme-substrate Schiff base intermediate as observed for the DHS. In contrast to the DHS the active site is not formed by the interface of two subunits but resides within one subunit of the bacterial HSS. Crystal structures of Blastochloris viridis HSS (BvHSS) reveal two distinct substrate binding sites, one of which is highly specific for putrescine. BvHSS features a side pocket in the direct vicinity of the active site formed by conserved amino acids and a potential substrate discrimination, guiding, and sensing mechanism. The proposed reaction steps for the catalysis of BvHSS emphasize cation-π interaction through a conserved Trp residue as a key stabilizer of high energetic transition states.

Indexed as

Models, MolecularProtein ConformationAlkyl and Aryl TransferasesAmino Acid SequenceBacterial ProteinsBinding SitesCatalysisCatalytic DomainHydrogen-Ion ConcentrationMutationNADPolyaminesProtein BindingProtein MultimerizationProtein SubunitsStructure-Activity RelationshipAlkyl and Aryl TransferasesBacterial Proteinshomospermidine synthetaseNADPolyaminesProtein Subunits

Identifiers

PMID26776105
PMCPMC4725965
OpenAlexW2257076008

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.