Evidence map›Paper›PMID 16574153›Full record

ArticleJournal of molecular biology2006

Sequence alignment and homology threading reveals prokaryotic and eukaryotic proteins similar to lactose permease.

Vladimir N Kasho, Irina N Smirnova, H Ronald Kaback

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of molecular biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 52 citations in OpenAlex.

  1. Novel multiplex-PCR test forMicrobiology spectrum · 2024
    Article
  2. Article
  3. Transporters of glucose and other carbohydrates in bacteria.Pflugers Archiv : European journal of physiology · 2020
    Review
  4. Article
  5. Engineered occluded apo-intermediate of LacY.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  6. Article
  7. Article
  8. Article
  9. A Numbering System for MFS Transporter Proteins.Frontiers in molecular biosciences · 2016
    Article
  10. A chemiosmotic mechanism of symport.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  11. Article
  12. Structure of sugar-bound LacY.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  13. Evolutionary mix-and-match with MFS transporters II.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  14. Trp replacements for tightly interacting Gly-Gly pairs in LacY stabilize an outward-facing conformation.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  15. Proton-coupled dynamics in lactose permease.Structure (London, England : 1993) · 2012
    Article
  16. Article
  17. Article
  18. Comparison of human solute carriers.Protein science : a publication of the Protein Society · 2010
    Article
  19. Probing of the rates of alternating access in LacY with Trp fluorescence.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  20. 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

3 authors at 1 institution in 1 country.

Vladimir N KashoDepartment of Physiology and Microbiology, Immunology and Molecular Genetics, Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA 90095-7327, USA.
Irina N Smirnova
H Ronald Kaback
University of California, Los Angeles · US

Funding

NEW APPROACHES TO MEMBRANE PROTEIN STRUCTURESR01DK051131 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KABACK, HOWARD RONALD · 1996 to 2014
$5.2M
Structural Basis for Mechanism of Secondary TransportersR01DK069463 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KABACK, HOWARD RONALD · 2005 to 2013
$3.7M
Structural Basis for Mechanism of Secondary TransportersR56DK069463 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KABACK, HOWARD RONALD · 2009 to 2009
$500k
Dynamics of the Lactose Permease of Escherichia ColiR56DK051131 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KABACK, HOWARD RONALD · 2015 to 2015
$154k
NIDDK NIH HHS DK051131NIDDK NIH HHS DK069463NIDDK NIH HHS R01 DK051131NIDDK NIH HHS R01 DK069463NIDDK NIH HHS R56 DK051131NIDDK NIH HHS R56 DK069463
6 · The paper itself

Abstract

Certain prokaryotic transport proteins similar to the lactose permease of Escherichia coli (LacY) have been identified by BLAST searches from available genomic databanks. These proteins exhibit conservation of amino acid residues that participate in sugar binding and H(+) translocation in LacY. Homology threading of prokaryotic transporters based on the X-ray structure of LacY (PDB ID: 1PV7) and sequence similarities reveals a common overall fold for sugar transporters belonging to the Major Facilitator Superfamily (MFS) and suggest new targets for study. Evolution-based searches for sequence similarities also identify eukaryotic proteins bearing striking resemblance to MFS sugar transporters. Like LacY, the eukaryotic proteins are predicted to have 12 transmembrane domains (TMDs), and many of the irreplaceable residues for sugar binding and H(+) translocation in LacY appear to be largely conserved. The overall size of the eukaryotic homologs is about twice that of prokaryotic permeases with longer N and C termini and loops between TMDs III-IV and VI-VII. The human gene encoding protein FLJ20160 consists of six exons located on more than 60,000 bp of DNA sequences and requires splicing to produce mature mRNA. Cellular localization predictions suggest membrane insertion with possible proteolysis at the N terminus, and expression studies with the human protein FJL20160 demonstrate membrane insertion in both E.coli and Pichia pastoris. Widespread expression of the eukaryotic sugar transport candidates suggests an important role in cellular metabolism, particularly in brain and tumors. Homology is observed in the TMDs of both the eukaryotic and prokaryotic proteins that contain residues involved in sugar binding and H(+) translocation in LacY.

Indexed as

Amino Acid SequenceAnimalsBacterial ProteinsBase SequenceBinding SitesCloning, MolecularConserved SequenceDatabases, ProteinDNAEscherichia coli ProteinsEukaryotic CellsHumansLac RepressorsMembrane Transport ProteinsModels, MolecularMolecular Sequence DataBacterial ProteinsDNAEscherichia coli ProteinsLac Repressorslactose permeaseLacY protein, E coliMembrane Transport ProteinsMonosaccharide Transport ProteinsRepressor ProteinsSymporters

Identifiers

PMID16574153
PMCPMC2785551
OpenAlexW1983140712

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.