Evidence map›Paper›PMID 27654451›Full record

ArticleImmunogenetics2017

Diversity of MHC class I alleles in Spheniscus humboldti.

Eri Kikkawa, Masafumi Tanaka, Taeko K Naruse, Tomi T Tsuda, Michio Tsuda, Koichi Murata, Akinori Kimura

Abstract read
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Article in Immunogenetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
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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

7 authors.

Eri KikkawaCollege of Bioresource Sciences, Nihon University, Tokyo, Japan.
Masafumi TanakaDivision of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, Japan.
Taeko K NaruseDepartment of Molecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan. naruse.tis@mri.tmd.ac.jp.
Tomi T TsudaDivision of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, Japan.
Michio TsudaDivision of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, Japan.
Koichi MurataCollege of Bioresource Sciences, Nihon University, Tokyo, Japan.
Akinori KimuraDepartment of Molecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan. akitis@mri.tmd.ac.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The major histocompatibility complex locus (MHC) is a gene region related to immune response and exhibits a remarkably great diversity. We deduced that polymorphisms in MHC genes would help to solve several issues on penguins, including classification, phylogenetic relationship, and conservation. This study aimed to elucidate the structure and diversity of the so far unknown MHC class I gene in a penguin species. The structure of an MHC class I gene from the Humboldt penguin (Spheniscus humboldti) was determined by using an inverse PCR method. We designed PCR primers to directly determine nucleotide sequences of PCR products from the MHC class I gene and to obtain recombinant clones for investigating the diversity of the MHC class I gene in Humboldt penguins. A total of 24 MHC class I allele sequences were obtained from 40 individuals. Polymorphisms were mainly found in exons 2 and 3, as expected from the nature of MHC class I genes in vertebrate species including birds and mammals. Phylogenetic analyses of MHC class I alleles have revealed that the Humboldt penguin is closely related to the Red Knot (Calidris canutus) belonging to Charadriiformes.

Indexed as

AllelesAmino Acid SequenceAnimalsBase SequenceHistocompatibility Antigens Class IPhylogenyPolymerase Chain ReactionPolymorphism, GeneticSelection, GeneticSequence Homology, Amino AcidSequence Homology, Nucleic AcidSpheniscidaeHistocompatibility Antigens Class IDiversityMHC class I genePenguinsPhylogenetic analysisPolymorphism

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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.