Evidence map›Paper›PMID 21923769›Full record

ArticleMolecular microbiology2011

An SMC ATPase mutant disrupts chromosome segregation in Caulobacter.

Monica A Schwartz, Lucy Shapiro

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

36 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Comparative Genomic Analysis Reveals Key Changes in the Genome ofInternational journal of molecular sciences · 2024
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  9. DNA sliding and loop formation byBiochemistry and biophysics reports · 2022
    Article
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  12. Review
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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

2 authors at 1 institution in 1 country.

Monica A SchwartzDepartment of Developmental Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Lucy Shapiro
Stanford University · US

Funding

DEVELOPMENT CONTROL OF DNA REPLICATION IN CAULOBACTERR01GM051426 · NIGMS · STANFORD UNIVERSITY · PI SHAPIRO, LUCILLE · 1994 to 2013
$3.8M
Mechanisms controlling the dynamic structure of the bacterial chromosomeF32GM080147 · NIGMS · STANFORD UNIVERSITY · PI SCHWARTZ, MONICA A · 2007 to 2009
$148k
NIGMS NIH HHS F32 GM080147NIGMS NIH HHS R01 GM051426NIGMS NIH HHS R01 GM51426
6 · The paper itself

Abstract

Accurate replication and segregation of the bacterial genome are essential for cell cycle progression. We have identified a single amino acid substitution in the Caulobacter structural maintenance of chromosomes (SMC) protein that disrupts chromosome segregation and cell division. The E1076Q point mutation in the SMC ATPase domain caused a dominant-negative phenotype in which DNA replication was able to proceed, but duplicated parS centromeres, normally found at opposite cell poles, remained at one pole. The cellular positions of other chromosomal loci were in the wild-type order relative to the parS centromere, but chromosomes remained unsegregated and appeared to be stacked upon one another. Purified SMC-E1076Q was deficient in ATP hydrolysis and exhibited abnormally stable binding to DNA. We propose that SMC spuriously links the duplicated chromosome immediately after passage of the replication fork. In wild-type cells, ATP hydrolysis opens the SMC dimer, freeing one chromosome to segregate to the opposite pole. The loss of ATP hydrolysis causes the SMC-E1076Q dimer to remain bound to both chromosomes, inhibiting segregation.

Indexed as

Chromosome SegregationMutationAdenosine TriphosphatasesBacterial ProteinsCaulobacter crescentusCell Cycle ProteinsCell DivisionChromosomes, BacterialProtein Structure, TertiaryAdenosine TriphosphatasesBacterial ProteinsCell Cycle ProteinsSMC protein, Bacteria

Identifiers

PMID21923769
PMCPMC3273039
OpenAlexW2155200157

What OpenQuestion holds

Textmetadata
LicenceTDM
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.