Evidence map›Paper›PMID 22037356›Full record

ReviewArchives of biochemistry and biophysics2012

Allostery and the dynamic oligomerization of porphobilinogen synthase.

Eileen K Jaffe, Sarah H Lawrence

Abstract readReview
In one paragraph

Review in Archives of biochemistry and biophysics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

22 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Mitochondria and Iron: current questions.Expert review of hematology · 2017
    Review
  6. The Remarkable Character of Porphobilinogen Synthase.Accounts of chemical research · 2016
    Article
  7. Review
  8. Article
  9. First structure of full-length mammalian phenylalanine hydroxylase reveals the architecture of an autoinhibited tetramer.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Erythroid heme biosynthesis and its disorders.Cold Spring Harbor perspectives in medicine · 2013
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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.

Eileen K JaffeFox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111, USA. Eileen.jaffe@fccc.edu
Sarah H Lawrence
Fox Chase Cancer Center · US

Funding

WORD PROCESSING CENTER--COREP30CA006927 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI Margaret von Mehren · 1985 to 2026
$138.8M
The Porphobilinogen Synthase FamilyR01ES003654 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI JAFFE, EILEEN K · 1985 to 2012
$3.9M
Low Activity Oligomers of Porphobilinogen Synthase as Antibiotic TargetsR56AI077577 · NIAID · RESEARCH INST OF FOX CHASE CAN CTR · PI JAFFE, EILEEN K · 2009 to 2010
$447k
NCI NIH HHS P30 CA006927NCI NIH HHS P30CA006927NIAID NIH HHS R56 AI077577NIAID NIH HHS R56AI077577NIEHS NIH HHS R01 ES003654NIEHS NIH HHS R01ES003654
6 · The paper itself

Abstract

The structural basis for allosteric regulation of porphobilinogen synthase (PBGS) is modulation of a quaternary structure equilibrium between octamer and hexamer (via dimers), which is represented schematically as 8mer ⇔ 2mer ⇔ 2mer∗⇔ 6mer∗. The "∗" represents a reorientation between two domains of each subunit that occurs in the dissociated state because it is sterically forbidden in the larger multimers. Allosteric effectors of PBGS are both intrinsic and extrinsic and are phylogenetically variable. In some species this equilibrium is modulated intrinsically by magnesium which binds at a site specific to the 8mer. In other species this equilibrium is modulated intrinsically by pH with the guanidinium group of an arginine being spatially equivalent to the allosteric magnesium ion. In humans, disease associated variants all shift the equilibrium toward the 6mer∗ relative to wild type. The 6mer∗ has a surface cavity that is not present in the 8mer and is proposed as a small molecule allosteric binding site. In silico and in vitro approaches have revealed species-specific allosteric PBGS inhibitors that stabilize the 6mer∗. Some of these inhibitors are drugs in clinical use leading to the hypothesis that extrinsic allosteric inhibition of human PBGS could be a mechanism for drug side effects.

Indexed as

Protein MultimerizationAllosteric RegulationAmino Acid SequenceEnzyme StabilityHumansMolecular Sequence DataPorphobilinogen SynthaseProtein Structure, QuaternaryPorphobilinogen Synthase

Identifiers

PMID22037356
PMCPMC3291741
OpenAlexW2099620162

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.