Evidence map›Paper›PMID 16465617›Full record

ArticleAmerican journal of human genetics2006

An ancient balanced polymorphism in a regulatory region of human major histocompatibility complex is retained in Chinese minorities but lost worldwide.

Xiaoyi Liu, Yonggui Fu, Zehuan Liu, Bin Lin, Yi Xie, Yin Liu, Yunpin Xu, Jianghai Lin, Xinlan Fan, Meiling Dong and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

14 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Population Genetics and Natural Selection in Rheumatic Disease.Rheumatic diseases clinics of North America · 2017
    Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Ancient polymorphism and functional variation in the primate MHC-DQA1 5' cis-regulatory region.Proceedings of the National Academy of Sciences of the United States of America · 2006
    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

13 authors at 3 institutions in 2 countries.

Xiaoyi LiuState Key Laboratory for Biocontrol, Department of Biochemistry, Key Laboratory of Genetic Engineering of the Ministry of Education, College of Life Sciences, Sun Yat-sen Zhongshan University, Guangzhou, China.
Yonggui Fu
Zehuan Liu
Bin Lin
Yi Xie
Yin Liu
Yunpin Xu
Jianghai Lin
Xinlan Fan
Meiling Dong
Kai Zeng
Chung-I Wu
Anlong Xu
Ministry of Education of the People's Republic of China · CNSun Yat-sen University · CNUniversity of Chicago · US

Funding

MOLECULAR EVOLUTION OF A HOMEODOMAIN GENE OF SPECIATIONR01GM058686 · NIGMS · UNIVERSITY OF CHICAGO · PI WU, CHUNG-I · 1999 to 2010
$2.5M
Transcriptional and genic basis of incipient speciationR01GM063144 · NIGMS · UNIVERSITY OF CHICAGO · PI WU, CHUNG-I · 2001 to 2008
$2.4M
NIGMS NIH HHS GM063144NIGMS NIH HHS GM58686NIGMS NIH HHS R01 GM058686NIGMS NIH HHS R01 GM063144
6 · The paper itself

Abstract

The coding regions of many of the major histocompatibility complex (MHC) (human leukocyte antigen [HLA] in humans) molecules are believed to be subject to balancing selection. But it is less certain whether the regulatory regions of such coding sequences are also subject to the same type of selection. Here, we studied the polymorphism of the regulatory regions of the HLA-DPA1 and HLA-DPB1 genes among ethnic minorities in southwestern China. Phylogenetic analysis revealed two deep clades >10 million years old. There is almost complete linkage disequilibrium between the regulatory and coding regions of HLA-DPA1, which hints at coadaptive balancing selection on the entire region. Thus, the molecular mechanism of balancing selection in MHC may involve expression modulation in addition to coding-region polymorphisms. Although the frequency of clade II is >30% in some ethnic minorities, it decreases to <5% among southern Han Chinese and vanishes among Europeans. As suspected, some ancient balanced polymorphisms, lost in major populations, still exist in isolated ethnicities. These isolated populations may thus contribute disproportionately to the total diversity of modern humans.

Indexed as

Polymorphism, GeneticAmino Acid SequenceAsian PeopleGenes, MHC Class IIHLA-DP alpha-ChainsHLA-DP AntigensHLA-DP beta-ChainsHumansLinkage DisequilibriumMolecular Sequence DataOpen Reading FramesPhylogenyRegulatory Elements, TranscriptionalHLA-DPA1 antigenHLA-DP alpha-ChainsHLA-DP AntigensHLA-DPB1 antigenHLA-DP beta-Chains

Identifiers

PMID16465617
PMCPMC1380283
OpenAlexW2080954254

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.