• Structural Affinity of CAP1 and AC isoforms

      Mehrotra, Simran; Department of Biological Sciences; Sabbatini, Maria Eugenia; Department of Biological Sciences; Augusta University (2018-02-12)
      The major cause of death of pancreatic cancer is metastases. For that reason, it is of interestto study the mechanism through which the pancreaticcancercells migrate as itcould help with future medicine and prolong survivalrate. Adenylyl cyclase-associated protein 1 (CAP1)is involved in the regulation of actin microfilament formation, which ultimately regulatescell migration and invasion.CAP1 binds to G-actin,inhibiting polymerization. In previousresults,we found CAP1 interactswith a number ofadenylyl cyclase (AC) isoforms: AC1, AC3, AC4 and AC7. The goal for this project wasto study therelative affinityof CAP1 for each AC isoform. Using sequential co-immunoprecipitation, we found that AC1 is the isoform that interacts more firmly with CAP1 in HPAC cells. Further studies will be done usingthe homology modeling.