Evidence map›Paper›PMID 20376170›Full record

ArticlePLoS computational biology2010

A human-specific de novo protein-coding gene associated with human brain functions.

Chuan-Yun Li, Yong Zhang, Zhanbo Wang, Yan Zhang, Chunmei Cao, Ping-Wu Zhang, Shu-Juan Lu, Xiao-Mo Li, Quan Yu, Xiaofeng Zheng and 4 more

Open access · goldAbstract read
In one paragraph

Article in PLoS computational biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

79 citing papers in PubMed, 1 synthesis or guideline pooled it, 133 citations in OpenAlex.

  1. Pooled it
  2. DetectNAR genomics and bioinformatics · 2026
    Article
  3. Article
  4. Review
  5. De Novo Genes: Current Status and Future Goals.Genome biology and evolution · 2025
    Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. De Novo Genes.Annual review of genetics · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. Journal of fungi (Basel, Switzerland) · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

19 more citing papers are in PubMed but not listed here.

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

14 authors at 4 institutions in 2 countries.

Chuan-Yun LiCenter for Bioinformatics, National Laboratory of Protein Engineering and Plant Genetic Engineering, College of Life Sciences, Peking University, Beijing, China.
Yong Zhang
Zhanbo Wang
Yan Zhang
Chunmei Cao
Ping-Wu Zhang
Shu-Juan Lu
Xiao-Mo Li
Quan Yu
Xiaofeng Zheng
Quan Du
George R Uhl
Qing-Rong Liu
Liping Wei
Peking University · CNNational Institute on Drug Abuse · USChinese PLA General Hospital · CNUniversity of Chicago · US

Funding

Genetic Approaches To Characterizing Drug Responses And Vulnerabilities: HumansZIADA000401 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI UHL, GEORGE RICHARD · 2009 to 2015
$3.4M
Understanding addiction vulnerability genesZIADA000492 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI UHL, GEORGE RICHARD · 2009 to 2015
$1.9M
6 · The paper itself

Abstract

To understand whether any human-specific new genes may be associated with human brain functions, we computationally screened the genetic vulnerable factors identified through Genome-Wide Association Studies and linkage analyses of nicotine addiction and found one human-specific de novo protein-coding gene, FLJ33706 (alternative gene symbol C20orf203). Cross-species analysis revealed interesting evolutionary paths of how this gene had originated from noncoding DNA sequences: insertion of repeat elements especially Alu contributed to the formation of the first coding exon and six standard splice junctions on the branch leading to humans and chimpanzees, and two subsequent substitutions in the human lineage escaped two stop codons and created an open reading frame of 194 amino acids. We experimentally verified FLJ33706's mRNA and protein expression in the brain. Real-Time PCR in multiple tissues demonstrated that FLJ33706 was most abundantly expressed in brain. Human polymorphism data suggested that FLJ33706 encodes a protein under purifying selection. A specifically designed antibody detected its protein expression across human cortex, cerebellum and midbrain. Immunohistochemistry study in normal human brain cortex revealed the localization of FLJ33706 protein in neurons. Elevated expressions of FLJ33706 were detected in Alzheimer's brain samples, suggesting the role of this novel gene in human-specific pathogenesis of Alzheimer's disease. FLJ33706 provided the strongest evidence so far that human-specific de novo genes can have protein-coding potential and differential protein expression, and be involved in human brain functions.

Indexed as

Models, GeneticAlzheimer DiseaseBrainComputer SimulationHumansMutationNerve Tissue ProteinsNerve Tissue Proteins

Identifiers

PMID20376170
PMCPMC2845654
OpenAlexW1991949383

What OpenQuestion holds

Textmetadata
LicenceCC0
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.