<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article  PUBLIC "-//NLM//DTD Journal Publishing DTD v3.0 20080202//EN" "http://dtd.nlm.nih.gov/publishing/3.0/journalpublishing3.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="3.0" xml:lang="en" article-type="research article"><front><journal-meta><journal-id journal-id-type="publisher-id">NS</journal-id><journal-title-group><journal-title>Natural Science</journal-title></journal-title-group><issn pub-type="epub">2150-4091</issn><publisher><publisher-name>Scientific Research Publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.4236/ns.2020.129049</article-id><article-id pub-id-type="publisher-id">NS-102757</article-id><article-categories><subj-group subj-group-type="heading"><subject>Articles</subject></subj-group><subj-group subj-group-type="Discipline-v2"><subject>Biomedical&amp;Life Sciences</subject><subject> Chemistry&amp;Materials Science</subject><subject> Earth&amp;Environmental Sciences</subject><subject> Medicine&amp;Healthcare</subject><subject> Physics&amp;Mathematics</subject></subj-group></article-categories><title-group><article-title>
 
 
  The Significant and Profound Impacts of Chou’s Distorted Key Theory for Developing Peptide Drugs
 
</article-title></title-group><contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Kuo-Chen</surname><given-names>Chou</given-names></name><xref ref-type="aff" rid="aff1"><sub>1</sub></xref></contrib></contrib-group><aff id="aff1"><label>1</label><addr-line>Gordon Life Science Institute, Boston, MA, USA</addr-line></aff><pub-date pub-type="epub"><day>09</day><month>09</month><year>2020</year></pub-date><volume>12</volume><issue>09</issue><fpage>638</fpage><lpage>639</lpage><history><date date-type="received"><day>1,</day>	<month>September</month>	<year>2020</year></date><date date-type="rev-recd"><day>7,</day>	<month>September</month>	<year>2020</year>	</date><date date-type="accepted"><day>10,</day>	<month>September</month>	<year>2020</year></date></history><permissions><copyright-statement>&#169; Copyright  2014 by authors and Scientific Research Publishing Inc. </copyright-statement><copyright-year>2014</copyright-year><license><license-p>This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/</license-p></license></permissions><abstract><p>
 
 
  In this short review paper, the significant and profound impacts of the distorted key theory for developing peptide drugs have been briefly recalled with crystal clear convincingness.
 
</p></abstract><kwd-group><kwd>AIDS</kwd><kwd> Peptide Drugs</kwd><kwd> Distorted Key Theory</kwd><kwd> Microenvironment</kwd></kwd-group></article-meta></front><body><sec id="s1"><title>CONFLICTS OF INTEREST</title><p>The author declares no conflicts of interest regarding the publication of this paper.</p></sec><sec id="s2"><title>REFERENCES</title></sec></body><back><ref-list><title>References</title><ref id="scirp.102757-ref1"><label>1</label><mixed-citation publication-type="other" xlink:type="simple">Barre-Sinoussi, F., Chermann, J.C., Rey, F., Nugeyre, M.T., Chamaret, S., Gruest, J., Dauguet, C., Axler-Blin, C., Vezinet-Brun, F., Rouzioux, C., Rozenbaum, W. and Montagnier, L. (1983) Isolation of a T-Lymphotropic Retrovirus from a Patient at Risk for Acquired Immune Deficiency Syndrome (AIDS). Science, 220, 868-871.  
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