Evidence map›Paper›PMID 9931301›Full record

ArticleThe Biochemical journal1999

Expression and purification of the first nucleotide-binding domain and linker region of human multidrug resistance gene product: comparison of fusions to glutathione S-transferase, thioredoxin and maltose-binding protein.

C Wang, A F Castro, D M Wilkes, G A Altenberg

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Biochemical journal, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

15 citing papers in PubMed, 61 citations in OpenAlex.

  1. Trial
  2. Acentrosomal spindle assembly and maintenance inMolecular biology of the cell · 2022
    Article
  3. Article
  4. Several affinity tags commonly used in chromatographic purification.Journal of analytical methods in chemistry · 2013
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. SUMO fusion technology for difficult-to-express proteins.Protein expression and purification · 2005
    Review
  14. Nucleotides and phospholipids compete for binding to the C terminus of KATP channels.Proceedings of the National Academy of Sciences of the United States of America · 2002
    Article
  15. 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.

C WangDepartment of Physiology and Biophysics, University of Texas Medical Branch, Galveston 77555-0641, USA.
A F Castro
D M Wilkes
G A Altenberg
The University of Texas Medical Branch at Galveston · US

Funding

PHOSPHORYLATION AND DRUG TRANSPORT BY P-GLYCOPROTEINR29CA072783 · NCI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI ALTENBERG, GUILLERMO A · 1997 to 2001
$216k
NCI NIH HHS CA72783
6 · The paper itself

Abstract

Many membrane proteins that belong to the ATP-binding cassette (ABC) superfamily are clinically important, including the cystic fibrosis transmembrane conductance regulator, the sulphonylurea receptor and P-glycoprotein (multidrug resistance gene product; MDR1). These proteins contain two multispanning transmembrane domains, each followed by one nucleotide-binding domain (NBD) and a linker region distal to the first NBD. ATP hydrolysis by the NBDs is critical for ABC protein function; the linker region seems to have a regulatory role. Previous attempts to express soluble NBDs and/or linker regions without detergent solubilization, or to purify NBDs at high yields as soluble fusion proteins, have been unsuccessful. Here we present a system for the expression in Escherichia coli of the first NBD of MDR1 followed by its linker region (NBD1MLD). A comparison of the expressions of NBD1MLD fused to glutathione S-transferase, thioredoxin and maltose-binding protein (MBP) shows that a high level of expression in the soluble fraction (approx. 8% of total E. coli protein) can be achieved only for MBP-NBD1MLD. The addition of a proteolytic thrombin site just proximal to the N-terminal end of NBD1MLD allows the cleavage of NBD1MLD from MBP, which can be easily purified with retention of its ATPase activity. In summary, success was obtained only when using an MBP fusion protein vector containing a thrombin proteolytic site between MBP and NBD1MLD. The approach described here could be generally applicable to solving the problems of expression and purification of NBDs/linker regions of ABC proteins.

Indexed as

ATP-Binding Cassette TransportersEscherichia coli ProteinsMonosaccharide Transport ProteinsAdenosine TriphosphatasesATP Binding Cassette Transporter, Subfamily B, Member 1Binding SitesCarrier ProteinsGenetic VectorsGlutathione TransferaseHumansMaltoseMaltose-Binding ProteinsPeptide FragmentsProtein Structure, TertiaryRecombinant Fusion ProteinsSolubilityAdenosine TriphosphatasesATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily B, Member 1Carrier ProteinsEscherichia coli ProteinsGlutathione TransferaseMaltoseMaltose-Binding Proteinsmaltose transport system, E coliMonosaccharide Transport ProteinsPeptide FragmentsRecombinant Fusion ProteinsThioredoxinsThrombin

Identifiers

PMID9931301
PMCPMC1220027
OpenAlexW2018417316

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.