NEUROSCIENCE Correction for “Phosphorylation of Rap1GAP, a striatally enriched protein, by protein kinase A controls Rap1 activity and dendritic spine morphology,” by Thomas McAvoy, Ming-ming Zhou, Paul Greengard, and Angus C. Nairn, which appeared in issue 9, March 3, 2009, of Proc Natl Acad Sci USA (106:3531–3536; first published February 13, 2009; 10.1073/pnas.0813263106).
The authors note that in the abstract of their paper, the sentence, “Phosphorylation of Rap1GAP is also associated with increased dendritic spine head size in cultured neurons” should instead appear as “Phosphorylation of Rap1GAP is also associated with decreased dendritic spine head size in cultured neurons.” This error does not affect the conclusions of the article.