Evidence map›Paper›PMID 8230249›Full record

ArticleJournal of molecular evolution1993

The complete intron/exon structure of Ephydatia mülleri fibrillar collagen gene suggests a mechanism for the evolution of an ancestral gene module.

J Y Exposito, M van der Rest, R Garrone

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of molecular evolution, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

7 citing papers in PubMed, 26 citations in OpenAlex.

  1. Collagen from Marine Sources for Potential Application in Wound Treatment.Progress in molecular and subcellular biology · 2026
    Review
  2. Collagen Mechanics.Sub-cellular biochemistry · 2026
    Review
  3. Article
  4. Article
  5. The fibrillar collagen family.International journal of molecular sciences · 2010
    Review
  6. Article
  7. 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

3 authors at 1 institution in 1 country.

J Y ExpositoInstitut de Biologie et Chimie des Protéines, CNRS UPR 412, Université Claude Bernard, Lyon, France.
M van der Rest
R Garrone
Centre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have completed the analysis of a genomic clone, G238, that contains most of the coding region of the sponge COLF1 fibrillar collagen gene. The main triple helical domain is encoded by 31 exons. Except for the 5' junction exon and the two last 3' exons (126 and 18 base pairs), all these exons are related to a 54-bp unit and begin with an intact glycine codon. A good correlation can be made between this sponge gene and a vertebrate fibrillar collagen gene, revealing the high conservation of the members of this family during evolution. The reconstitution of an ancestral collagen gene can be made by considering all the exon/intron junctions of these genes. We suggest that such an ancestral gene arose from multiple duplications of a 54-bp exon and a (54 + 45)-bp module.

Indexed as

Biological EvolutionGenesModels, GeneticAmino Acid SequenceAnimalsBase SequenceCollagenExonsIntronsMolecular Sequence DataMultigene FamilyPoriferaProtein Structure, SecondarySea UrchinsVertebratesCollagen

Identifiers

PMID8230249
OpenAlexW2081924382

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.