Primate Embryo Gene
Welcome to Primate Embryo Gene Expression Resource. Registered users get full access to our databases, methodologies and publications. Registration is free, and it ensures that we get to know you better so we can improve this site to better serve you.

What's inside

  • 168 RNAseq libraries (coming soon !) and 58 array libraries representing:
    • GV stage oocytes
    • MII stage oocytes
    • 8-cell stage embryos
    • Morula stage embryos
    • Blastocyst stage embryos
    • Cumulus cells
    • Granulosa Cells
    • ES cells
    • TS cells
  • Array data from other published murine studies
  • Single gene expression profiles
  • Biological effects of:
    • Seasonality
    • In vitro maturation
    • Maternal sucrose consumption
    • Maternal binge ethanol drinking
    • Follistatin treatment
    • Endocrine disruptor chemicals (coming soon !)
  • Protein Expression Data
    • Literature mining tool
    • Original immunofluorescence images
  • Protocols
  • Publications
  • Reproductive biology links
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Please read the revised User Agreement below. By clicking the "I Accept / Login" button, you indicate that you agree to the User Agreement. If you do not accept, please do not use this service.


You must read this User Agreement carefully and accept its terms and conditions in order to use this Site.

The PREGER ( website (" Site" or the "Site") is an Internet based informational and data sharing service. By accessing or using the Site, you indicate that you have read this agreement (the "User Agreement") and the Privacy Policy and agree that its terms and conditions apply to you and are legally binding on you and that you will comply with them.

Site Patrons

"PREGER" is an acronym for Primate Embryo Gene Expression Resource. PREGER is an unincorporated division of Michigan State University. Michigan State University ("Educational Sponsor" or " Host") is the owner of the Site. The Educational Sponsor provides certain content, technology and activities related to the Site. The Educational Sponsor may be referred to as the "Content Sponsor." The Site is made possible by a generous unrestricted research grant from the National Center for Research Resources (NCRR/NIH) ("Financial Sponsor"). The Financial Sponsor exercises no editorial control over the Site. The Educational Sponsor, the Financial Sponsor and the Site editorial board may be collectively referred to as the "Site Patrons". Unless the context clearly requires otherwise, the terms "we" and "us" shall refer to the Site Patrons.

Agreement Revisions

The Educational Sponsor or its agents or assigns may revise the User Agreement or Privacy Policy at any time. The terms and conditions of the revised User Agreement or Privacy Policy become effective upon their posting on the Site. If you continue to use the Site after the posting of a revised User Agreement or Privacy Policy, you will be deemed to have accepted the revised terms and conditions regardless of whether you have read them.

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Content Not Advice

The contents of the Site, including without limitation text, graphics, images, sounds, video, hyperlinks, any messages, advice, opinions or other information contained in any discussion area and any other material that appears on the Site ("Content") are provided for informational purposes only. The Content is not intended as instruction or advice and should not be relied upon as such. The Content is not intended to suggest a course of study or research and should not be accepted as or used as a substitute for professional advice or consultation. The Content is provided from a variety of sources. None of the Site, Site Patrons or Content providers directly or indirectly provide research consulting services through or in connection with the Site.

Endorsement Disclaimer

The Site and Site Patrons neither recommend nor endorse any particular researchers, research or database providers, products, procedures, tests, devices, opinions, or other information that appear or are discussed on the Site. If you rely on any Content, any individual or entity that appears on or provides Content to the Site, or other visitors to the Site, you do so solely at your own risk.

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  5. you possess the legal right and ability to enter into the User Agreement and to use the Site in accordance with the User Agreement.

You agree to be financially responsible for your use of the Site (as well as for use of your account by others) and to comply with your responsibilities and obligations as stated in the User Agreement.

The Site Patrons are committed to protecting the privacy of children. The Site is not intended for or designed to attract children under the age of 13. The Site is not used to collect personally identifiable information from any person we actually know is a child under the age of 13.

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The Site Patrons are not responsible for the content of postings and uploads. The Host reserves the right to block or remove communications or materials that it determines, in its sole discretion, to be (a) abusive, libelous, defamatory or obscene, (b) fraudulent, deceptive, or misleading, (c) in violation of a copyright, trademark or other intellectual property right of another or (d) offensive or otherwise detrimental or unacceptable to the Site. Any messages, advice, opinions or other information contained in the Data section of the Site ("Data") should not be construed as research related advice, direction or instruction regarding methods, means or otherwise. The Site Patrons are not responsible for and make no representations or warranties about the accuracy or completeness of any original or revised Data.

Your Use of the Site and Content

The Content is protected by copyright under the laws of the United States of America and other countries. The Host or its licensors retain title to the Content. You are permitted to use the Content only in a limited personal noncommercial manner in accordance with the User Agreement. Any other use of the Content that is not expressly permitted by the User Agreement is prohibited and may be a violation of copyright, trademark, and other laws. The Host may change the Content or disable portions or features of the Site or the entire Site at any time in its sole discretion. All rights not expressly granted herein are reserved to the Host and its licensors.

You are authorized to make a single copy of selected limited portions of the Content solely for your own personal, noncommercial use, provided that you include the following copyright notice (without the quotation marks): "Copyright © 2002 - [then current year], Michigan State University. All rights reserved." and include any other copyright and proprietary rights notices that appear in the copied portions of the Content. You must also comply with any procedures that are prescribed for the use of certain software and other intellectual property that are made available on the Site.

If you fail to comply with any of the terms and conditions of the User Agreement, your permission to use the Site and Content are automatically revoked and you must immediately destroy any copies you have made of any portion of the Content.

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The Host reserves the right to monitor content on the Site and to remove or edit content, which the Site, in its sole discretion, determines to be harmful, offensive, or otherwise in violation of this Agreement or the Site's other operating policies for users of the Site ("Users").

To the extent that such features are provided on the Site you may send and receive electronic mail ("email"), engage in conferences and chats, download and upload files and otherwise use the Site as permitted by this Agreement, the Site's operating policies and applicable law. Files that you upload, public messages that you send and your activity in conferences and chats are subject to review, modification and deletion without notice by the Host or the forum manager responsible for the Site area where your uploading or other activity takes place (or by an individual designated by such forum manager for such purpose). The Site's operating policies relating to online conduct, storage and deletion of email and uploaded files, conferences, User privacy and other matters may be made available online. The Site reserves the right in its sole discretion to change such policies at any time.

You are responsible for your use of the Site and for your communications with the Site and relating to the Site. You are prohibited from doing any of the following: (a) falsely purporting to be an employee or agent of the Site, Host or other Site Patrons; (b) posting or transmitting libelous or defamatory messages; (c) posting or transmitting any indecent, obscene or pornographic message, data, image or program; (d) posting or transmitting any harmful, threatening, abusive or hateful message; (e) posting or transmit ting any message, data, image or program that would violate the property rights of others, including, without limitation, unauthorized copyrighted text, images or programs, trade secrets or other confidential proprietary information, and infringing use of trademarks or service marks; (f) deleting any author attributions, legal notices or proprietary designations or labels in a file that you upload to the Site; (g) uploading or downloading files that contain software or other material protected by intellectual property laws, rights of privacy or publicity, or any other applicable law unless you own or control the rights to such files or have received all necessary consents; (h) using the Site to threaten, harass, stalk, abuse, or otherwise violate the legal rights of others (including rights of privacy and publicity); (i) intercepting or attempting to intercept email or other private communications not intended for you; (j) sending email to Users or other Internet users for any purpose other than personal communication (such prohibited purposes include advertising or making any unsolicited offer to sell goods or services to other Users, using email as a unsolicited mass distribution medium to communicate a generally unsolicited message, or using your email account as an address to which Users or other Internet users need to respond (except as otherwise expressly permitted by the Site); (k) sending unsolicited email messages through third party mail servers in order to relay your email or hide the sender identity or original source of your email to others; (l) falsifying the source or origin of software or other material contained in a file that you upload to the Site; (m) uploading files that contain a virus, worm, infection or corrupted data; (n) using the Site in a manner that adversely affects the availability of its resources to other Users; (o) using simultaneous, unattended or continuous connections to the Site with one account; (p) using, downloading or otherwise copying a User list or directory or any portion thereof other than for personal, noncommercial purposes (except as otherwise expressly permitted by the Site) or providing a copy thereof or access thereto (whether or not for a fee or other benefits) to a person or entity that is not a subscriber to the Site; (q) causing repeated disruptive incidents; and (r) acting, or failing to act, in your use of the Site, in a manner that is contrary to applicable Site policies, law or regulation.

While the Site does not discourage Users from taking controversial positions or expressing unpopular views, the Site reserves the right to take such action as it deems appropriate in cases where the Site is used to disseminate statements that are deeply and widely offensive and/or harmful.

Each time you upload a file on the Site, you represent and warrant that you own or otherwise control the rights or have the necessary consents to do so, and you grant every other User the right to download and use such file.

Your violation of any of the foregoing prohibitions or your failure to comply with any of the other terms, conditions, limitations or obligations of this User Agreement may result in suspension or revocation of your Site privileges and in civil or criminal liability to you.

User’s Agreements

You agree to:

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  3. be responsible for all charges resulting from use of your Site account, including unauthorized use prior to your notifying the Site of such use and taking steps to prevent its further occurrence by changing your password.
  4. wherever data or materials are used from PREGER, acknowledge in both oral and written communications the PREGER resource, including citations of relevant publications as indicated in the website for PREGER (see "citing this resource").
  5. obtain prior permission from PREGER before any reproductions of graphs, data, or other information included in the website, except for personal use.

No Representations or Warranties

The Site Patrons make no representation about the suitability or accuracy of the software, data, or other information contained on the Site for any purpose. The Site Patrons make no warranties, either express or implied, including title, merchantability or fitness for a particular purpose or that the use of this software will not infringe any third party patents, copyrights, trademarks, or other rights. The software, data, other information and access to the Site are provided "as is."

Disclaimer of Liability of Site, Site Patrons and Licensors

Your use of the Site and the Content is at your own risk.

The Site transmits information over the Internet. The Host does not control or provide service to the Internet. The Site Patrons and Site licensors cannot be responsible and assume no liability for or in connection with human or machine error, omission, delay, failure, interruption, loss or corruption of any data or other information transmitted in connection with use of the Site. The Site and Site Patrons do not represent or warrant that files available for downloading from the Site will be free of infection by viruses, worms, Trojan horses or other computer code that contain contaminating or destructive properties.

The Site and the content are provided on an "as is" basis. To the fullest extent permitted by law the Site Patrons, their agents, licensors, and suppliers, disclaim all warranties, either express or implied, statutory or otherwise, including without limitation the implied warranties of merchantability, non infringement of third parties' rights, and fitness for particular purpose. Without limiting the foregoing, the Site Patrons, their licensors, agents and suppliers make no representations or warranties about any of the following:

  1. The accuracy, reliability, comprehensiveness, usefulness, adequacy, suitability or timeliness of the Content, software, or communications provided on or through the use of the Site.
  2. Adherence to any government regulations requiring disclosure of information on prescription drug products or medical devices or the approval or compliance of any software with regard to the Content contained on the Site.

In no event shall the Site, the Site Patrons, their licensors, suppliers, or any third parties appearing or listed on the Site (the "Site Indemnitees") be liable for any damages (including, without limitation, indirect, incidental or consequential damages, personal injury, wrongful death, lost profits or damages resulting from lost data or business interruption) resulting from the use of or inability to use the Site or the Content, whether based on warranty, contract, tort, products liability or any other legal or equitable theory, and whether or not or any of the Site Indemnitees are advised of the possibility of such damages. Without limiting the foregoing restrictions and limitations, the amount of any damages for which the Site Indemnitees may be found liable is limited to the extent of actual damages incurred by you, not to exceed U.S. $250. The Site Indemnitees are not liable for any personal injury, including death, caused by your use or misuse of the Site or Content. Any claims arising in connection with your use of the Site or Content must be brought within one (1) year of the date of the occurrence of the event giving rise to such action. Remedies under the User Agreement are exclusive and are limited to those expressly provided for in the User Agreement.

Privacy Policy

The Privacy Policy applies to this Site and its users. Acceptance of this User Agreement indicates acceptance of the Privacy Policy as well.

Advertisements, Searches and Hyperlinks

The Site may select certain other websites as priority responses to search terms you enter and the Site may permit advertisers to respond to certain search terms with advertisements or sponsored content. The Site and the Site Patrons do not recommend or endorse any product advertised on the Site.

The Site may provide hyperlinks to third party web sites. The Site and Site Patrons do not recommend and do not endorse the content on any third party websites. Third party websites may contain content that violates copyright, libel, fair trade practice or consumer protection laws or content that some people find objectionable. Neither the Site nor the Site Patrons are responsible for the content of hyperlinked third party sites, sites framed within the Site, third party sites provided as search results, or third party advertisements, and do not make any representations regarding their content or accuracy. Your use of third party websites (even those websites that you link to from the Site) is at your own risk and subject to the terms and conditions of use for such sites.


You agree to defend, indemnify, and hold harmless the Site Indemnitees and their officers, directors, trustees, employees, agents, licensors, and suppliers from and against any claims, actions or demands, liabilities and settlements including, without limitation, reasonable legal fees, resulting from your violation of the User Agreement.


You expressly agree that exclusive jurisdiction for any dispute with the Site, or in any way relating to your use of the Site, resides in the courts of the State of Michigan in the City of Lansing, Michigan. You further agree and expressly consent to the exercise of personal jurisdiction in the courts of the State of Michigan in connection with any such dispute including any claim involving the Site Patrons or their affiliates, agents or any of their employees, contractors, officers, directors, trustees, telecommunication providers, and content providers.

The User Agreement is governed by the laws of the State of Michigan without respect to its choice or conflict of laws principles. If any provision of the User Agreement is found to be invalid by any court having competent jurisdiction, the invalidity of such provision shall not affect the validity of the remaining provisions of the User Agreement, which shall remain in full force and effect. No waiver of any of the terms and conditions of the User Agreement shall be deemed a further or continuing waiver of such term or condition or any other term or condition.


The Site is based in East Lansing, Michigan, United States of America. The Site and Site Patrons make no claims, representations or warranties that the Content is appropriate or may be downloaded outside of the United States. Access to the Content may not be legal by certain persons or in certain countries. If you access the Site from outside the United States, you do so at your own risk and are responsible for compliance with the laws of your jurisdiction. The provisions provided in the sections with the following titles survive the expiration or earlier termination of the User Agreement: Liability, Indemnity, Jurisdiction, and Complete Agreement.

Complete Agreement

Except as may be expressly provided in a particular "legal notice" on the Site, the User Agreement and Privacy Policy constitute the entire agreement between you and with respect to the use of the Site and Content.

We appreciate your cooperation. We hope you enjoy using the Site and find it informative. Please send questions or comments regarding the Site (including any reports of misdirected or non working links) by electronic mail to or by U.S. mail to at 474 S. Shaw Lane, room 1230E, East Lansing, MI 48824. Unfortunately, we cannot answer every inquiry, but we try to respond to as many as we can.


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Thank you.

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