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      <Form990PartVIISectionAGrp>
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          <BusinessNameLine1Txt>KAREN S HAYNES</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
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        <BusinessName>
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        <BusinessName>
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        <BusinessName>
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        <BusinessName>
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      <Form990PartVIISectionAGrp>
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      <ContractorCompensationGrp>
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        <FormAndLineReferenceDesc>Schedule J, Part I, Line 1a Tax indemnification and gross-up payments</FormAndLineReferenceDesc>
        <ExplanationTxt>RELOCATION COSTS WERE GROSSED UP FOR OUR CEO, C. RANDAL MILLS.</ExplanationTxt>
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        <ExplanationTxt>THE PARTICIPANT OF THE 457(F) DEFERRED COMPENSATION PLAN IS C. RANDAL MILLS. VESTING FOR C. RANDAL MILLS OCCURS THE EARLIEST OF 07/13/25, OR INVOLUNTARY TERMINATION WITHOUT CAUSE, OR PARTICIPANT'S RESIGNATION FOR GOOD CAUSE, OR THE DATE OF TERMINATION OF THE PLAN. DISTRIBUTION IS A ONE-TIME LUMP SUM PAYMENT UPON VESTING OF 100% OF THE VALUE OF THE PARTICIPANT'S INVESTMENT (COMPRISED OF INSTITUTE CONTRIBUTIONS TO THE CORPUS PLUS ANY INVESTMENT GAINS OR LOSSES THEREON).</ExplanationTxt>
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        <ExplanationTxt>SOME SENIOR EXECUTIVES HAVE EMPLOYMENT AGREEMENTS STIPULATING A BONUS WILL BE PAID TO THEM PROVIDED CERTAIN GOALS OR ACCOMPLISHMENTS ARE ACHIEVED.</ExplanationTxt>
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        <ExplanationTxt>Issuer name: COUNTY OF SAN DIEGO FOR THE BOND ISSUES LISTED IN PART I, THE ALTERNATIVE PERIOD USED FOR THE REPORTING REQUIREMENTS IN THIS SECTION IS THE TWELVE MONTHS ENDED DECEMBER 31, 2021.</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part I, Line 1 MISSION STATEMENT</FormAndLineReferenceDesc>
        <ExplanationTxt>SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE CONDUCTS WORLD-CLASS, COLLABORATIVE RESEARCH DEDICATED TO FINDING CURES FOR HUMAN DISEASE, IMPROVING THE QUALITY OF LIFE, AND THUS CREATING A LEGACY FOR ITS EMPLOYEES, PARTNERS, DONORS, AND COMMUNITY.</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part III, Line 4a PROGRAM SERVICE ACCOMPLISHMENTS</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990 - Part III, line 4 Program Service Accomplishments Sanford Burnham Prebys is an independent nonprofit medical research organization dedicated to uncovering the origins of disease and launching bold new strategies that lay the foundation for cures. Our Institute has deep expertise in fundamental biology and is one of the most comprehensive drug discovery centers in the nonprofit world. Cancer: Research reveals why more Black women die from breast cancer: Research from Sanford Burnham Prebys has revealed significant molecular differences between the breast cells of white and Black women that help explain why Black women experience higher breast cancer mortality. The findings, published February 8 in the journal Therapeutic Advances in Medical Oncology, suggest that changing current diagnostic and treatment strategies could help address the disparity. Some gene edits may favor cells with cancer-linked mutations: A comprehensive study-conducted by researchers at Sanford Burnham Prebys, the National Cancer Institute (NCI) and other groups-has shown that gene editing, specifically gene knockout (KO), with CRISPR -Cas9 can favor cells with mutated forms of genes linked to cancer. The findings highlight the need to monitor patients undergoing CRISPR-Cas9-based gene therapy for cancer-related mutations. The study was published in the journal Nature Communications. Researchers identify a novel player in acute myeloid leukemia: A study led by scientists at Sanford Burnham Prebys has shown that the protein RNF5 plays an unusual role in acute myeloid leukemia (AML). Unlike its expected role, marking aberrant proteins for destruction, RNF5 binds with a second cell protein called RBBP4 to control expression of genes implicated in AML. These findings, published in Nature Communications, have important implications for improving AML patient outcomes. Boosting immunotherapy in aggressive brain cancer: Researchers from Sanford Burnham Prebys have collaborated the University of Pittsburgh Cancer Institute to reveal a new approach to enhance the effects of immunotherapy in glioblastoma, one of the most aggressive and treatment-resistant forms of brain cancer. The study, published recently in Cancer Discovery, describes a novel method to 'turn off' cancer stem cells-the malignant cells that self-renew and sustain tumors-enabling the body's own defense system to take charge and destroy tumors. Sanford Burnham Prebys drug enters Phase 1 study for the treatment of tobacco use disorder: A drug discovered in the lab of Nicholas Cosford, Ph.D., has entered a Phase 1 clinical study. The compound, SBP-9330, targets a neuronal signaling pathway underlying addictive behaviors and would be a first-in-class oral therapeutic to help people quit smoking. The study is being funded by the National Institute on Drug Abuse (NIDA) at the National Institutes of Health (NIH) through a grant awarded to Sanford Burnham Prebys, the Department of Psychiatry, University of California San Diego, School of Medicine, and Camino Pharma, LLC, who will oversee activities related to the Phase 1 study. Degenerative Diseases: Sanford Burnham Prebys unravels mysteries of the aging Down syndrome brain In the first study of its kind, researchers from Sanford Burnham Prebys have uncovered molecular changes within the aging brains of individuals with Down syndrome that could help explain their cognitive challenges, including the uniform development of Alzheimer's disease in these individuals later in life. The findings, published in the Proceedings of the National Academy of Science, could help pave the way for new therapies to aid people with Down syndrome and Alzheimer's disease. How Sanford Burnham Prebys is helping map the brain: Researchers in the lab of Sanford Burnham Prebys professor Jerold Chun, M.D., Ph.D., have helped the NIH create a cellular atlas of the motor cortex - the area of the brain responsible for movement. Their work, published recently in the journal Nature, is the flagship paper for the NIH's BRAIN initiative, a massive multi-institution project to unravel the mysteries of the human brain. Human Genetics: New stem cell identified by Sanford Burnham Prebys researchers offers hope to people with rare liver disease. Researchers from Sanford Burnham Prebys have discovered a new source of stem cells just outside the liver that could help treat people living with Alagille syndrome, a rare, incurable genetic disorder in which the bile ducts of the liver are absent, leading to severe liver damage and death. The findings, published recently in the journal Hepatology, have extensive biomedical implications for Alagille syndrome and for liver disease in general, including cancer. Biomarker could help diagnosis schizophrenia at an early age: Scientists at Sanford Burnham Prebys have discovered how levels of a protein could be used in the future as a blood-based diagnostic aid for schizophrenia. The activity of the protein, which is found in both the brain and blood, affects neural connections in human brains and is uniquely imbalanced in people diagnosed with the condition. The research also provides guidance for future analyses into the molecular basis of this serious, disabling mental disorder. The study was published in Proceedings of the National Academy of Sciences (PNAS). This enzyme is one of the hardest working proteins in the body: Researchers from Sanford Burnham Prebys have shown that a protein they identified plays a major role in the breakdown of hyaluronic acid, a compound found in the scaffolding between our cells. The findings, published recently in the Journal of Biological Chemistry, could have implications for epilepsy, cancer and other human diseases associated with hyaluronic acid and similar compounds. Immunity and Pathogenesis: Study finds promising therapeutic target for colitis: An international research group, led by Jamey Marth, Ph.D., a professor at Sanford Burnham Prebys, has shown that the Neuraminidase 3 (Neu3) enzyme is responsible for the onset and progression of colitis-a chronic digestive disease caused by inflammation of the colon. The study, recently published in the Proceedings of the National Academy of Sciences, represents a scientific advance toward a targeted therapy to help the millions of people worldwide affected by the disorder. Without this protein, tuberculosis is powerless: Sanford Burnham Prebys researchers have uncovered the structure of an important protein for the growth of tuberculosis bacteria. The study, published recently in Nature Communications, sheds light on an unusual metabolic system in tuberculosis, which could help yield new treatments for the disease and help make existing therapies more effective. How our immune system controls gut microbes: Sanford Burnham Prebys researchers including Carl Ware, Ph.D., and John ed, Ph.D., have discovered an immunological process in the gut that could help improve treatment for autoimmune and gastrointestinal diseases. The study, published March 22 in Cell Reports, found that this process regulates the activation of white blood cells in the intestines, which ultimately helps the body control the composition of the gut microbiome. New COVID-19 drug passes phase 2 clinical trial: In a phase 2 clinical trial conducted by Avalo and supported by Sanford Burnham Prebys, a significantly higher proportion of hospitalized patients with COVID-19 remained alive and free of respiratory failure for 28 days after receiving treatment with the new antibody, called CERC-002. Unlike other experimental COVID therapies, CERC-002 does not target the virus itself, instead targeting the immune response associated with the virus to stop the disease from progressing before it becomes fatal. Sanford Burnham Prebys and Roche fight back against antibiotic resistance: Researchers from Sanford Burnham Prebys have teamed up with prominent drug developer Roche Pharma to learn how bacteria develop antibiotic resistance. Their new results, published in the journal mBio, are one piece of a long-standing collaboration between the two organizations, the goal of which is to mitigate the growing threat of antibiotic resistance by developing more "irresistible" drugs and by helping improve antibiotic prescribing practices.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b Review of form 990 by governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>PROCESS USED BY MANAGEMENT AND/OR GOVERNING BODY TO REVIEW FORM 990: THE 990 IS PREPARED BY THE FINANCE DEPARTMENT. IT IS REVIEWED BY THE INSTITUTE'S TAX ADVISORS, SELECTED MEMBERS OF MANAGEMENT INCLUDING THE CFO AND AUDIT COMMITTEE, AND PROVIDED TO MEMBERS OF THE BOARD PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c Conflict of interest policy</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION OF PROCESS TO MONITOR TRANSACTIONS FOR CONFLICT OF INTEREST: SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE HAS A CONFLICT OF INTEREST POLICY THAT REQUIRES ALL TRUSTEES, PRINCIPAL OFFICERS OR MEMBERS OF A COMMITTEE WITH BOARD DELEGATED POWERS TO ANNUALLY CONFIRM THEIR RECEIPT OF THE CONFLICT OF INTEREST POLICY AND DISCLOSE ANY NEW ASSOCIATIONS OR INTERESTS THAT MIGHT POTENTIALLY POSE A CONFLICT. THIS IS A WRITTEN CONFIRMATION THAT SHE OR HE READ AND UNDERSTANDS THE CONFLICT OF INTEREST POLICY, WILL ABIDE BY THE CONFLICT OF INTEREST POLICY AND CERTIFIES DISCLOSURE OF ALL INTERESTS OR RELATIONSHIPS THAT MAY POSE CONFLICTS. IN ADDITION, EACH YEAR NEW TRUSTEES RECEIVE TRAINING REGARDING THE INSTITUTE'S CONFLICT OF INTEREST POLICY, WHICH INCLUDES HOW TO IDENTIFY A CONFLICT OF INTEREST AND HOW TO HANDLE POSSIBLE CONFLICTS OF INTEREST WHEN THEY ARISE. THE COMPLIANCE DEPARTMENT REVIEWS EACH OF THE STATEMENTS AND ASSESSES WHETHER AN ACTUAL OR POTENTIAL CONFLICT OF INTEREST EXISTS/MAY EXIST AND WHETHER THE INDIVIDUAL SHOULD BE PROHIBITED FROM CONSIDERATION OF RELATED ITEMS. ANY TRUSTEE, PRINCIPAL OFFICER OR MEMBER OF A COMMITTEE WITH BOARD DELEGATED POWERS WITH A CONFLICT IN A MATTER REQUIRING ACTION BY THE BOARD ARE PROHIBITED FROM PARTICIPATING IN THE BOARD'S DELIBERATIONS AND/OR VOTING ON THE PARTICULAR TRANSACTION OR MATTER IN WHICH HE OR SHE HAS AN INTEREST; AND OTHERWISE REFRAIN FROM EXERTING ANY INFLUENCE TO AFFECT A DECISION. HOWEVER, OTHER MEASURES MAY BE REQUIRED, DEPENDING ON THE NATURE OF AND THE ABILITY TO REASONABLY MANAGE A CONFLICT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15a Process to establish compensation of top management official</FormAndLineReferenceDesc>
        <ExplanationTxt>PROCESS FOR DETERMINING COMPENSATION: COMPENSATION FOR THE CEO, THE PRESIDENT, CHIEF FINANCIAL OFFICER, AND OTHER KEY EMPLOYEES IS ESTABLISHED ACCORDING TO INSTITUTE POLICIES WHICH ARE DESIGNED TO MEET THE IRS STANDARD FOR "REBUTTABLE PRESUMPTION OF REASONABLENESS". THE COMPENSATION COMMITTEE OF THE BOARD OF TRUSTEES, CONSISTING OF THREE INDEPENDENT TRUSTEES, REVIEWS COMPARABILITY DATA AT LEAST EVERY TWO YEARS PROVIDED BY AN INDEPENDENT EXTERNAL CONSULTANT/RESOURCE THAT INCORPORATES AND EVALUATES INSTITUTE DATA AND THAT OF COMPARABLE ORGANIZATIONS AND MARKETS FROM WHICH THE INSTITUTE DRAWS ITS EXECUTIVE TALENT. UTILIZING THIS INFORMATION, THE COMPENSATION COMMITTEE, WHICH TYPICALLY SEEKS TO ESTABLISH COMPENSATION BETWEEN THE 50TH AND THE 75TH PERCENTILE OF THE COMPARABILITY DATA, MAKES A DETERMINATION WHETHER THE PROPOSED COMPENSATION IS REASONABLE. THE COMPENSATION COMMITTEE HAS BEEN DELEGATED AUTHORITY BY THE BOARD OF TRUSTEES TO REVIEW AND APPROVE COMPENSATION OF ALL POSITIONS EXCEPT FOR THE CEO. THE CEO'S COMPENSATION PACKAGE IS REVIEWED AND APPROVED INITIALLY BY THE COMPENSATION COMMITTEE AND THEN GOES TO THE EXECUTIVE COMMITTEE FOR FINAL APPROVAL. THE COMPENSATION COMMITTEE CONTEMPORANEOUSLY AND ADEQUATELY DOCUMENTS THE BASIS FOR ITS DETERMINATION AND RECOMMENDATION TO THE EXECUTIVE COMMITTEE. IF APPROVED BY THE EXECUTIVE COMMITTEE, THE CEO COMPENSATION PACKAGE IS THEN IMPLEMENTED AND SUCH DOCUMENTATION IS KEPT IN THE WRITTEN AND ELECTRONIC RECORDS OF THE BOARD OF TRUSTEES. THE PROCESS WAS LAST COMPLETED ON JUNE 10, 2021 FOR THE FOLLOWING POSITIONS: 1) PRESIDENT 2) CAO/CFO 3) VP BUSINESS DEVELOPMENT 4) VP PHILANTHROPY 5) SVP DRUG DISCOVERY &amp; DEVELOPMENT 6) PROGRAM DIRECTOR/PROFESSOR 7) CANCER CENTER DIRECTOR/PROFESSOR 8) INFECTIOUS &amp; INFLAMMATORY DISEASE CENTER DIRECTOR/PROFESSOR</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15b Process to establish compensation of other employees</FormAndLineReferenceDesc>
        <ExplanationTxt>see above</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19 Required documents available to the public</FormAndLineReferenceDesc>
        <ExplanationTxt>PROCESS FOR MAKING DOCUMENTS AVAILABLE TO THE PUBLIC DOCUMENTS ARE AVAILABLE UPON REQUEST</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VIII, Line 11d Other Miscellaneous Revenue</FormAndLineReferenceDesc>
        <ExplanationTxt>- Total Revenue: 6000, Related or Exempt Function Revenue: 6000, Unrelated Business Revenue: , Revenue Excluded from Tax Under Sections 512, 513, or 514: ;</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule F, Part I, Line 3 Program Service Activities</FormAndLineReferenceDesc>
        <ExplanationTxt>Sanford Burnham Prebys Medical Discovery Institute does not maintain ongoing operations in foreign jurisdictions. However, the Institute's scientist do travel to various scientific conferences in other countries to share the Institute's scientific discoveries, as well as, to learn from other scientists across the world.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule F, Part I, Line 3(e) Type of Service</FormAndLineReferenceDesc>
        <ExplanationTxt>Specific Program Service Activity in all regions is agents attending and/or speaking at scientific conferences and collaborations.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule F, Part I, Line 3(f) Accounting Method</FormAndLineReferenceDesc>
        <ExplanationTxt>The accrual method of accounting was used to determine the amounts in Part I, line 3, column F.</ExplanationTxt>
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