Evidence map›Paper›PMID 15289474›Full record

ArticleGenome research2004

Evolution of eukaryotic transcription: insights from the genome of Giardia lamblia.

Aaron A Best, Hilary G Morrison, Andrew G McArthur, Mitchell L Sogin, Gary J Olsen

Open access · bronzeAbstract read
In one paragraph

Article in Genome research, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
–field-weighted citation impact
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

43 citing papers in PubMed, 101 citations in OpenAlex.

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  4. Analysis ofPharmaceuticals (Basel, Switzerland) · 2023
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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

5 authors at 2 institutions in 1 country.

Aaron A BestDepartment of Microbiology, University of Illinois at Urbana-Champaign, B103 Chemical and Life Sciences Laboratory, Urbana, Illinois 61801, USA.
Hilary G Morrison
Andrew G McArthur
Mitchell L Sogin
Gary J Olsen
Marine Biological Laboratory · USUniversity of Illinois Urbana-Champaign · US

Funding

GIARDIA--A MODEL FOR ANCIENT EUKARYOTIC GENOME ANALYSISU01AI043273 · NIAID · MARINE BIOLOGICAL LABORATORY · PI SOGIN, MITCHELL L · 2000 to 2002
$2.4M
Characterization of the Giardia lamblia TranscriptomeR01AI051089 · NIAID · MARINE BIOLOGICAL LABORATORY · PI MCARTHUR, ANDREW G · 2001 to 2004
$942k
GIARDIA--A MODEL FOR ANCIENT EUKARYOTIC GENOME ANALYSISR01AI043273 · NIAID · MARINE BIOLOGICAL LABORATORY · PI SOGIN, MITCHELL L · 1998 to 1999
–
NIAID NIH HHS AI43273NIAID NIH HHS AI51089NIAID NIH HHS R01 AI051089
6 · The paper itself

Abstract

The Giardia lamblia genome sequencing project affords us a unique opportunity to conduct comparative analyses of core cellular systems between early and late-diverging eukaryotes on a genome-wide scale. We report a survey to identify canonical transcription components in Giardia, focusing on RNA polymerase (RNAP) subunits and transcription-initiation factors. Our survey revealed that Giardia contains homologs to 21 of the 28 polypeptides comprising eukaryal RNAPI, RNAPII, and RNAPIII; six of the seven RNAP subunits without giardial homologs are polymerase specific. Components of only four of the 12 general transcription initiation factors have giardial homologs. Surprisingly, giardial TATA-binding protein (TBP) is highly divergent with respect to archaeal and higher eukaryotic TBPs, and a giardial homolog of transcription factor IIB was not identified. We conclude that Giardia represents a transition during the evolution of eukaryal transcription systems, exhibiting a relatively complete set of RNAP subunits and a rudimentary basal initiation apparatus for each transcription system. Most class-specific RNAP subunits and basal initiation factors appear to have evolved after the divergence of Giardia from the main eukaryotic line of descent. Consequently, Giardia is predicted to be unique in many aspects of transcription initiation with respect to paradigms derived from studies in crown eukaryotes.

Indexed as

Evolution, MolecularGenomeTranscription, GeneticAnimalsDNA-Directed RNA PolymerasesGiardia lambliaModels, GeneticPhylogenyPol1 Transcription Initiation Complex ProteinsDNA-Directed RNA PolymerasesPol1 Transcription Initiation Complex Proteinstranscription initiation factor TIF-IB

Identifiers

PMID15289474
PMCPMC509262
OpenAlexW2168571706

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.