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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Production of d-Branched-Chain Amino Acids by Lactic Acid Bacteria Carrying Homologs to Isoleucine 2-Epimerase of Lactobacillus buchneri
|
|---|---|
| Published in |
Frontiers in Microbiology, July 2018
|
| DOI | 10.3389/fmicb.2018.01540 |
| Pubmed ID | |
| Authors |
Yuta Mutaguchi, Kano Kasuga, Ikuo Kojima |
| Abstract |
Isoleucine 2-epimerase (ILEP) is a novel branched-chain amino acid racemase isolated from Lactobacillus buchneri. In this study, we examined production of free d-branched-chain amino acids such as d-valine, d-leucine, and d-allo-isoleucine, using lactic acid bacteria carrying homologs to ILEP. Twelve selected strains of lactic acid bacteria were grown at optimal growth temperatures and accumulation of d-branched-chain amino acids in the medium was monitored in exponential, early stationary, and stationary phases. To analyze the d-branched-chain amino acids, enantiomers in the medium were initially converted into diastereomers using pre-column derivatization with o-phthaldialdehyde plus N-isobutyryl-l-cysteine. The resultant fluorescent isoindole derivatives were analyzed on an octadecylsilyl stationary phase using ultra-high performance liquid chromatography. The analyses revealed that the seven following lactic acid bacteria carrying homologs showing 53-60% amino acid sequence identity to the L. buchneri ILEP accumulate d-branched-chain amino acids: Lactobacillus fermentum and Weissella paramesenteroides produce d-valine, d-leucine, and d-allo-isoleucine; Lactobacillus reuteri, Leuconostoc mesenteroides subsp. mesenteroides, and Leuconostoc gelidum subsp. gasicomitatum accumulate d-leucine and d-allo-isoleucine; and Lactobacillus vaginalis and Leuconostoc pseudomesenteroides produce d-allo-isoleucine. These results suggest that d-branched-chain amino acids are produced by a variety of lactic acid bacteria species, particularly those carrying homologs to the ILEP. |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Mexico | 1 | 33% |
| Germany | 1 | 33% |
| Switzerland | 1 | 33% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 2 | 67% |
| Members of the public | 1 | 33% |
Mendeley readers
The data shown below were compiled from readership statistics for 43 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 43 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 8 | 19% |
| Student > Ph. D. Student | 7 | 16% |
| Student > Master | 4 | 9% |
| Other | 3 | 7% |
| Researcher | 3 | 7% |
| Other | 6 | 14% |
| Unknown | 12 | 28% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 10 | 23% |
| Biochemistry, Genetics and Molecular Biology | 8 | 19% |
| Medicine and Dentistry | 2 | 5% |
| Nursing and Health Professions | 2 | 5% |
| Immunology and Microbiology | 2 | 5% |
| Other | 6 | 14% |
| Unknown | 13 | 30% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 06 August 2018.
All research outputs
#17,982,872
of 23,096,849 outputs
Outputs from Frontiers in Microbiology
#17,507
of 25,264 outputs
Outputs of similar age
#236,171
of 327,048 outputs
Outputs of similar age from Frontiers in Microbiology
#505
of 749 outputs
Altmetric has tracked 23,096,849 research outputs across all sources so far. This one is in the 19th percentile – i.e., 19% of other outputs scored the same or lower than it.
So far Altmetric has tracked 25,264 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.4. This one is in the 22nd percentile – i.e., 22% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 327,048 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 22nd percentile – i.e., 22% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 749 others from the same source and published within six weeks on either side of this one. This one is in the 25th percentile – i.e., 25% of its contemporaries scored the same or lower than it.