Evidence map›Paper›PMID 17947681›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2007

Mast cell alpha and beta tryptases changed rapidly during primate speciation and evolved from gamma-like transmembrane peptidases in ancestral vertebrates.

Neil N Trivedi, Qiao Tong, Kavita Raman, Vikash J Bhagwandin, George H Caughey

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

19 citing papers in PubMed, 43 citations in OpenAlex.

  1. Review
  2. Tryptase and tumor angiogenesis.Frontiers in oncology · 2024
    Review
  3. Review
  4. Clinical relevance of inherited genetic differences in human tryptases: Hereditary alpha-tryptasemia and beyond.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2021
    Review
  5. Inherited and acquired determinants of serum tryptase levels in humans.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2021
    Review
  6. Review
  7. Article
  8. Tryptase as a polyfunctional component of mast cells.Histochemistry and cell biology · 2018
    Review
  9. Article
  10. Review
  11. Article
  12. Mast cell proteases as pharmacological targets.European journal of pharmacology · 2016
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Mast cell peptidases: chameleons of innate immunity and host defense.American journal of respiratory cell and molecular biology · 2010
    Review
  19. 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

5 authors at 1 institution in 1 country.

Neil N TrivediCardiovascular Research Institute and Department of Medicine, University of California, San Francisco, CA 94143, USA.
Qiao Tong
Kavita Raman
Vikash J Bhagwandin
George H Caughey
San Francisco VA Medical Center · US

Funding

Tools for Analysis of Airway InflammationP01HL024136 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MCDONALD, DONALD M · 1985 to 2014
$23.3M
NHLBI NIH HHS HL024136NHLBI NIH HHS P01 HL024136
6 · The paper itself

Abstract

Human mast cell tryptases vary strikingly in secretion, catalytic competence, and inheritance. To explore the basis of variation, we compared genes from a range of primates, including humans, great apes (chimpanzee, gorilla, orangutan), Old- and New-World monkeys (macaque and marmoset), and a prosimian (galago), tracking key changes. Our analysis reveals that extant soluble tryptase-like proteins, including alpha- and beta-like tryptases, mastins, and implantation serine proteases, likely evolved from membrane-anchored ancestors because their more deeply rooted relatives (gamma tryptases, pancreasins, prostasins) are type I transmembrane peptidases. Function-altering mutations appeared at widely separated times during primate speciation, with tryptases evolving by duplication, gene conversion, and point mutation. The alpha-tryptase Gly(216)Asp catalytic domain mutation, which diminishes activity, is present in macaque tryptases, and thus arose before great apes and Old World monkeys shared an ancestor, and before the alphabeta split. However, the Arg(-3)Gln processing mutation appeared recently, affecting only human alpha. By comparison, the transmembrane gamma-tryptase gene, which anchors the telomeric end of the multigene tryptase locus, changed little during primate evolution. Related transmembrane peptidase genes were found in reptiles, amphibians, and fish. We identified soluble tryptase-like genes in the full spectrum of mammals, including marsupial (opossum) and monotreme (platypus), but not in nonmammalian vertebrates. Overall, our analysis suggests that soluble tryptases evolved rapidly from membrane-anchored, two-chain peptidases in ancestral vertebrates into soluble, single-chain, self-compartmentalizing, inhibitor-resistant oligomers expressed primarily by mast cells, and that much of present numerical, behavioral, and genetic diversity of alpha- and beta-like tryptases was acquired during primate evolution.

Indexed as

Evolution, MolecularAnimalsBase SequenceCell MembraneExonsGenomeHumansIntronsMast CellsMolecular Sequence DataPhylogenySequence AlignmentSequence Homology, Amino AcidSolubilityTime FactorsTryptasesTryptases

Identifiers

PMID17947681
PMCPMC2366170
OpenAlexW1498060330

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.