Evidence map›Paper›PMID 19133128›Full record

ArticleBMC genomics2009

Comparative proteome analysis of psychrophilic versus mesophilic bacterial species: Insights into the molecular basis of cold adaptation of proteins.

Raghu Prasad Rao Metpally, Boojala Vijay B Reddy

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC genomics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

64 citing papers in PubMed, 1 synthesis or guideline pooled it, 170 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Antarctic Streptomyces: Promising biocontrol agents for combatingBiotechnology reports (Amsterdam, Netherlands) · 2024
    Article
  8. Genomic signatures of cold adaptation in the family Colwelliaceae.Extremophiles : life under extreme conditions · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Metabolic adaptations ofFrontiers in microbiology · 2024
    Article
  13. Review
  14. The methanogen core and pangenome: conservation and variability across biology's growth temperature extremes.DNA research : an international journal for rapid publication of reports on genes and genomes · 2023
    Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

4 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Raghu Prasad Rao MetpallyLaboratory of Bioinformatics and in Silico Drug Design, Computer Science Department, Queens College of City University of New York, 65-30 Kissena Blvd,, Flushing, NY 11367, USA. rmetpally@mbl.edu
Boojala Vijay B Reddy
Queens College, CUNY · US

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

backgroundCold adapted or psychrophilic organisms grow at low temperatures, where most of other organisms cannot grow. This adaptation requires a vast array of sequence, structural and physiological adjustments. To understand the molecular basis of cold adaptation of proteins, we analyzed proteomes of psychrophilic and mesophilic bacterial species and compared the differences in amino acid composition and substitution patterns to investigate their likely association with growth temperatures.

resultsIn psychrophilic bacteria, serine, aspartic acid, threonine and alanine are overrepresented in the coil regions of secondary structures, whilst glutamic acid and leucine are underrepresented in the helical regions. Compared to mesophiles, psychrophiles comprise a significantly higher proportion of amino acids that contribute to higher protein flexibility in the coil regions of proteins, such as those with tiny/small or neutral side chains. Amino acids with aliphatic, basic, aromatic and hydrophilic side chains are underrepresented in the helical regions of proteins of psychrophiles. The patterns of amino acid substitutions between the orthologous proteins of psychrophiles versus mesophiles are significantly different for several amino acids when compared to their substitutions in orthologous proteins of within the mesophiles or psychrophiles.

conclusionCurrent results provide quantitative substitution preferences (or avoidance) of amino acids that lead to the adaptation of proteins to cold temperatures. These finding would help future efforts in selecting mutations for rational design of proteins with enhanced psychrophilic properties.

Indexed as

Adaptation, PhysiologicalCold TemperatureAmino Acid SubstitutionBacteriaBacterial ProteinsProtein Structure, SecondaryProteomeBacterial ProteinsProteome

Identifiers

PMID19133128
PMCPMC2653534
OpenAlexW2025504839

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.