Answers.Body: <p><a href="https://www.cellphonedb.org" rel="nofollow noreferrer">CellPhoneDB</a> is a publicly available repository of <em>curated</em> receptors, ligands and their interactions.</p>
  
  <p>The interactions can be searched or downloaded.</p>
  
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Answers.CreationDate: 2018-10-22T11:05:31.313Z
Answers.LastActivityDate: 2018-10-22T11:05:31.313Z
Answers.UserDisplayName: Peter
Answers.Body: <p>Have you tried <a href="https://string-db.org/cgi/input.pl?sessionId=QLEnNyQMCbBE&amp;input_page_show_search=on" rel="nofollow noreferrer">STRING</a>? </p>
  
  <p>It's a publicly available protein-protein interaction database, so it won't be a complete picture. </p>
  
  <p><a href="https://www.qiagenbioinformatics.com/products/ingenuity-pathway-analysis/" rel="nofollow noreferrer">Ingenuity Pathways Analysis (IPA)</a> is really nice but is a paid service. Ask your institution if they have a license for one. </p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-10-22T13:43:17.997Z
Answers.Text: Can you include a link to IPA please.
Answers.UserDisplayName: Bioathlete
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-10-22T17:47:29.283Z
Answers.Text: https://www.qiagenbioinformatics.com/products/ingenuity-pathway-analysis/
Answers.UserDisplayName: Yuka Takemon
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Answers.CreationDate: 2018-10-22T12:21:14.633Z
Answers.LastActivityDate: 2018-10-22T14:20:02.333Z
Answers.LastEditDate: 2018-10-22T14:20:02.333Z
Answers.UserDisplayName: Yuka Takemon
Answers.Body: <p><a href="http://tcm.zju.edu.cn/celltalkdb/search.php" rel="nofollow noreferrer">CellTalkDB</a> is another option for a searchable ligand-receptor database. According to the webpage it is curated from other databases and the literature. Details are available in the <a href="https://academic.oup.com/bib/advance-article-abstract/doi/10.1093/bib/bbaa269/5955941" rel="nofollow noreferrer">publication</a>.</p>
  
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Answers.CreationDate: 2020-12-09T02:23:26.690Z
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Answers.UserDisplayName: Tapper
Body: <p>How can I find ligands of receptors (or <em>vice versa</em>)?</p>
  
  <p>For example, I want to find the receptors of IL-8 (CXCL8).</p>
  
Tags: <database><public-databases><protein-protein-interaction>
Title: Receptor-ligand database
ThreadText: # Receptor-ligand database
  
  (Asked by: username_0 on 2018-10-22)
  
  How can I find ligands of receptors (or *vice versa*)?
  
  For example, I want to find the receptors of IL-8 (CXCL8).
  
  **Tags:** database, public-databases, protein-protein-interaction
  
  
  ---
  
  ## 3 answers
  
  ### Answer by username_0 on 2018-10-22. Score: 3 | Accepted answer
  
  [CellPhoneDB](https://www.cellphonedb.org) is a publicly available repository of *curated* receptors, ligands and their interactions.
  
  The interactions can be searched or downloaded.
  
  
  ---
  
  ### Answer by username_1 on 2018-10-22. Score: 2
  
  Have you tried [STRING](https://string-db.org/cgi/input.pl?sessionId=QLEnNyQMCbBE&input_page_show_search=on)?
  
  It's a publicly available protein-protein interaction database, so it won't be a complete picture.
  
  [Ingenuity Pathways Analysis (IPA)](https://www.qiagenbioinformatics.com/products/ingenuity-pathway-analysis/) is really nice but is a paid service. Ask your institution if they have a license for one.
  
  > **Comments:**
  > **username_2**: Can you include a link to IPA please.  
  > **username_1**: https://www.qiagenbioinformatics.com/products/ingenuity-pathway-analysis/  
  
  ---
  
  ### Answer by username_3 on 2020-12-09. Score: 0
  
  [CellTalkDB](http://tcm.zju.edu.cn/celltalkdb/search.php) is another option for a searchable ligand-receptor database. According to the webpage it is curated from other databases and the literature. Details are available in the [publication](https://academic.oup.com/bib/advance-article-abstract/doi/10.1093/bib/bbaa269/5955941).
  
  
  ---
  
  