Evidence map›Paper›PMID 21664997›Full record

ArticleAmerican journal of human genetics2011

Effects of natural selection and gene conversion on the evolution of human glycophorins coding for MNS blood polymorphisms in malaria-endemic African populations.

Wen-Ya Ko, Kristin A Kaercher, Emanuela Giombini, Paolo Marcatili, Alain Froment, Muntaser Ibrahim, Godfrey Lema, Thomas B Nyambo, Sabah A Omar, Charles Wambebe and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
4.7field-weighted citation impact, top 6% 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

31 citing papers in PubMed, 55 citations in OpenAlex.

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  7. Addressing Africa's pandemic puzzle: Perspectives on COVID-19 transmission and mortality in sub-Saharan Africa.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2021
    Review
  8. Two Prevalent ∼100-kbTransfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2020
    Article
  9. Review
  10. Article
  11. Review
  12. Few Plasmodium falciparum merozoite ligand and erythrocyte receptor pairs show evidence of balancing selection.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2019
    Article
  13. Article
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  17. Parasite-Related Genetic and Epigenetic Aspects and Host Factors InfluencingFrontiers in cellular and infection microbiology · 2018
    Review
  18. Article
  19. Article
  20. Inferences of African evolutionary history from genomic data.Current opinion in genetics & development · 2016
    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

13 authors at 6 institutions in 6 countries.

Wen-Ya KoDepartment of Genetics and Biology, School of Medicine and School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA.
Kristin A KaercherDepartment of Genetics and Biology, School of Medicine and School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA.
Emanuela GiombiniDepartment of Biochemical Sciences "Rossi Fanelli" University of Rome "La Sapienza" P.ale Aldo Moro, 5 - 00185 Rome, Italy.
Paolo MarcatiliDepartment of Biochemical Sciences "Rossi Fanelli" University of Rome "La Sapienza" P.ale Aldo Moro, 5 - 00185 Rome, Italy.
Alain FromentUMR 208, Institut de Recherche pour le Développement, Muséum National d'Histoire Naturelle, Musée de l'Homme, 75116 Paris, France.
Muntaser IbrahimDepartment of Molecular Biology, Institute of Endemic Diseases, University of Khartoum, 15-Khartoum, Sudan.
Godfrey LemaDepartment of Biochemistry, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
Thomas B NyamboDepartment of Biochemistry, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
Sabah A OmarKenya Medical Research Institute, Center for Biotechnology Research and Development, 54840-00200 Nairobi, Kenya.
Charles WambebeInternational Biomedical Research in Africa, Abuja, Nigeria.
Alessia RanciaroDepartment of Genetics and Biology, School of Medicine and School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA.
Jibril B HirboDepartment of Genetics and Biology, School of Medicine and School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA.
Sarah A TishkoffDepartment of Genetics and Biology, School of Medicine and School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address: tishkoff@mail.med.upenn.edu.
University of Pennsylvania · USMuhimbili University of Health and Allied Sciences · TZSapienza University of Rome · ITKenya Medical Research Institute · KEMusée de l'Homme · FRUniversity of Khartoum · SD

Funding

African Odyssey: An Integrative Genomics Analysis of Complex Physiologic TraitsDP1OD006445 · OD · UNIVERSITY OF PENNSYLVANIA · PI TISHKOFF, SARAH ANNE · 2009 to 2011
$2.4M
African Odyssey: An Integrative Genomics Analysis of Complex Physiologic TraitsDP1ES022577 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI TISHKOFF, SARAH ANNE · 2012 to 2013
$1.6M
Variation at Malaria Resistance Genes in AfricansR01GM076637 · NIGMS · UNIV OF MARYLAND, COLLEGE PARK · PI TISHKOFF, SARAH ANNE · 2006 to 2009
$1.2M
NIEHS NIH HHS DP1 ES022577NIGMS NIH HHS R01 GM076637NIGMS NIH HHS R01GM076637NIH HHS DP1 OD006445NIH HHS DP1-OD-006445-01
6 · The paper itself

Abstract

Malaria has been a very strong selection pressure in recent human evolution, particularly in Africa. Of the one million deaths per year due to malaria, more than 90% are in sub-Saharan Africa, a region with high levels of genetic variation and population substructure. However, there have been few studies of nucleotide variation at genetic loci that are relevant to malaria susceptibility across geographically and genetically diverse ethnic groups in Africa. Invasion of erythrocytes by Plasmodium falciparum parasites is central to the pathology of malaria. Glycophorin A (GYPA) and B (GYPB), which determine MN and Ss blood types, are two major receptors that are expressed on erythrocyte surfaces and interact with parasite ligands. We analyzed nucleotide diversity of the glycophorin gene family in 15 African populations with different levels of malaria exposure. High levels of nucleotide diversity and gene conversion were found at these genes. We observed divergent patterns of genetic variation between these duplicated genes and between different extracellular domains of GYPA. Specifically, we identified fixed adaptive changes at exons 3-4 of GYPA. By contrast, we observed an allele frequency spectrum skewed toward a significant excess of intermediate-frequency alleles at GYPA exon 2 in many populations; the degree of spectrum distortion is correlated with malaria exposure, possibly because of the joint effects of gene conversion and balancing selection. We also identified a haplotype causing three amino acid changes in the extracellular domain of glycophorin B. This haplotype might have evolved adaptively in five populations with high exposure to malaria.

Indexed as

Endemic DiseasesGenetic Predisposition to DiseaseSelection, GeneticAfrica South of the SaharaAmino Acid SubstitutionAnimalsBase SequenceErythrocytesEthnicityExonsGenetic LociGlycophorinsHumansMalaria, FalciparumMNSs Blood-Group SystemMolecular Sequence DataGlycophorinsGYPA protein, humanGYPB protein, humanMNSs Blood-Group System

Identifiers

PMID21664997
PMCPMC3113242
OpenAlexW2128885594

What OpenQuestion holds

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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.