Evidence map›Paper›PMID 24614134›Full record

ArticlePloS one2014

Prokaryotic soluble overexpression and purification of bioactive human growth hormone by fusion to thioredoxin, maltose binding protein, and protein disulfide isomerase.

Minh Tan Nguyen, Bon-Kyung Koo, Thu Trang Thi Vu, Jung-A Song, Seon-Ha Chong, Boram Jeong, Han-Bong Ryu, Sang-Hyun Moh, Han Choe

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

19 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

9 authors at 2 institutions in 1 country.

Minh Tan NguyenDepartment of Physiology and Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea.
Bon-Kyung KooDepartment of Physiology and Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea.
Thu Trang Thi VuDepartment of Physiology and Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea.
Jung-A SongDepartment of Physiology and Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea.
Seon-Ha ChongDepartment of Physiology and Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea.
Boram JeongDepartment of Physiology and Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea.
Han-Bong RyuDepartment of Physiology and Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea.
Sang-Hyun MohBio-FD&C Co. Ltd., Incheon, Korea.
Han ChoeDepartment of Physiology and Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea.
University of Ulsan · KRUlsan College · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human growth hormone (hGH) is synthesized by somatotroph cells of the anterior pituitary gland and induces cell proliferation and growth. This protein has been approved for the treatment of various conditions, including hGH deficiency, chronic renal failure, and Turner syndrome. Efficient production of hGH in Escherichia coli (E. coli) has proven difficult because the E. coli-expressed hormone tends to aggregate and form inclusion bodies, resulting in poor solubility. In this study, seven N-terminal fusion partners, hexahistidine (His6), thioredoxin (Trx), glutathione S-transferase (GST), maltose-binding protein (MBP), N-utilization substance protein A (NusA), protein disulfide bond isomerase (PDI), and the b'a' domain of PDI (PDIb'a'), were tested for soluble overexpression of codon-optimized hGH in E. coli. We found that MBP and hPDI tags significantly increased the solubility of the hormone. In addition, lowering the expression temperature to 18°C also dramatically increased the solubility of all the fusion proteins. We purified hGH from MBP-, PDIb'a'-, or Trx-tagged hGH expressed at 18°C in E. coli using simple chromatographic techniques and compared the final purity, yield, and activity of hGH to assess the impact of each partner protein. Purified hGH was highly pure on silver-stained gel and contained very low levels of endotoxin. On average, ∼37 mg, ∼12 mg, and ∼7 mg of hGH were obtained from 500 mL-cell cultures of Trx-hGH, MBP-hGH, and PDIb'a'-hGH, respectively. Subsequently, hGH was analyzed using mass spectroscopy to confirm the presence of two intra-molecular disulfide bonds. The bioactivity of purified hGHs was demonstrated using Nb2-11 cell.

Indexed as

Amino Acid SequenceAnimalsCell LineCell ProliferationEscherichia coliHuman Growth HormoneHumansMaltose-Binding ProteinsMolecular Sequence DataPlasmidsProkaryotic CellsProtein Disulfide-IsomerasesProtein StabilityProtein Structure, TertiaryRatsRecombinant Fusion ProteinsHuman Growth HormoneMaltose-Binding ProteinsProtein Disulfide-IsomerasesRecombinant Fusion ProteinsThioredoxins

Identifiers

PMID24614134
PMCPMC3948679
OpenAlexW2091994760

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.