| Title |
Molecular characterization of cytosolic cysteine synthase in Mimosa pudica
|
|---|---|
| Published in |
Journal of Plant Research, November 2017
|
| DOI | 10.1007/s10265-017-0986-5 |
| Pubmed ID | |
| Authors |
Md. Harun-Ur- Rashid, Hironori Iwasaki, Shigeki Oogai, Masakazu Fukuta, Shahanaz Parveen, Md. Amzad Hossain, Toyoaki Anai, Hirosuke Oku |
| Abstract |
In the cysteine and mimosine biosynthesis process, O-acetyl-L-serine (OAS) is the common substrate. In the presence of O-acetylserine (thiol) lyase (OASTL, cysteine synthase) the reaction of OAS with sulfide produces cysteine, while with 3-hydroxy-4-pyridone (3H4P) produces mimosine. The enzyme OASTL can either catalyze Cys synthesis or both Cys and mimosine. A cDNA for cytosolic OASTL was cloned from M. pudica for the first time containing 1,410 bp nucleotides. The purified protein product from overexpressed bacterial cells produced Cys only, but not mimosine, indicating it is Cys specific. Kinetic studies revealed that pH and temperature optima for Cys production were 6.5 and 50 °C, respectively. The measured Km, Kcat, and Kcat Km-1 values were 159 ± 21 µM, 33.56 s-1, and 211.07 mM-1s-1 for OAS and 252 ± 25 µM, 32.99 s-1, and 130.91 mM-1s-1 for Na2S according to the in vitro Cys assay. The Cy-OASTL of Mimosa pudica is specific to Cys production, although it contains sensory roles in sulfur assimilation and the reduction network in the intracellular environment of M. pudica. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 16 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 16 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Doctoral Student | 4 | 25% |
| Student > Ph. D. Student | 3 | 19% |
| Unspecified | 1 | 6% |
| Librarian | 1 | 6% |
| Lecturer > Senior Lecturer | 1 | 6% |
| Other | 2 | 13% |
| Unknown | 4 | 25% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 3 | 19% |
| Biochemistry, Genetics and Molecular Biology | 2 | 13% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 6% |
| Environmental Science | 1 | 6% |
| Unspecified | 1 | 6% |
| Other | 4 | 25% |
| Unknown | 4 | 25% |
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 14 August 2018.
All research outputs
#20,453,782
of 23,009,818 outputs
Outputs from Journal of Plant Research
#754
of 835 outputs
Outputs of similar age
#373,314
of 438,449 outputs
Outputs of similar age from Journal of Plant Research
#12
of 15 outputs
Altmetric has tracked 23,009,818 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 835 research outputs from this source. They receive a mean Attention Score of 4.4. This one is in the 1st percentile – i.e., 1% 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 438,449 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 15 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.