SP3
(redirected from specificity protein 3)Also found in: Encyclopedia.
SP3
A gene on chromosome 2q31 that encodes a protein which up- or downregulates transcription based on the isoform and/or post-translational modifications. SP3 is involved in various intracellular processes, including cell cycle regulation, hormone induction and housekeeping activities.Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.